Abby’s Guide > Outdoor Power Equipment (Lawn Mowers, Snow Blowers, Chain Saws and more) > Discussions > Worth a look
Outdoor Power Equipment (Lawn Mowers, Snow Blowers, Chain Saws and more) Discussions |
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mml4
Snow is good, Deep snow is better!
Joined: Dec 31, 2003
Points: 544
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Worth a look
Original Message Feb 14, 2005 5:42 pm |
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Check out Ebay#4358052867. Never saw one before but I think I'm in love ! Must be Valentines day, Marc
This message was modified Feb 14, 2005 by mml4
SnapperV210P,Toro22177,TroyBilt42010Snowthrower,Craftsman Shredder,American Turbo Pressure Washer HondaGX200,Stihl011Saw,EchoPas260Trimmer Edger,EchoPB602Blower,EchoHCR150Hedge Clipper
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mml4
Snow is good, Deep snow is better!
Joined: Dec 31, 2003
Points: 544
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Re: Worth a look
Reply #2 Feb 14, 2005 5:53 pm |
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Thanks Mints! Wish I could do that!! Marc
SnapperV210P,Toro22177,TroyBilt42010Snowthrower,Craftsman Shredder,American Turbo Pressure Washer HondaGX200,Stihl011Saw,EchoPas260Trimmer Edger,EchoPB602Blower,EchoHCR150Hedge Clipper
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Ben07
The more you know about something, the more you find there is to know.
Location: Pittsburgh, PA
Joined: Feb 26, 2004
Points: 178
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Re: Worth a look
Reply #4 Feb 14, 2005 6:24 pm |
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I think I saw that at the monster truck ralley, It Beat out "Grave Diggers' Rig". (That is nice)
Ariens 8524LE, Toro CCR2000, Jacobsen S-B S-blowers, Generac 10hp Gen-convt. to N.G., 5 L-boys(D's F's &Dura( 74,77,80,88,00), Antiq. 1960 AYP 20 in. mag w 3.5 Tech mower. Ryan/Ryobi gas Trim. AYP 205 gas blwr. Mac c-saw,Toro E-blwr, 2 Weed-E e. stg. trims. outboards, boats, util trail, 2 Jeeps
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ChrisS
Appreciate what you have already been blessed with.
Joined: Sep 16, 2002
Points: 2793
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Re: Worth a look
Reply #7 Feb 14, 2005 7:06 pm |
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No reserve, holy moley, I read it as no reverse.
I lost the glasses I use to look for my glasses. LOL...
I gave that unit a good look years ago out of curiousity, it is the track drive model but wheels instead of tracks. Just like that huge 45 inch width monster MTD makes under the Cub name I considered it a novelty if nothing else. Actually I would like to try both of those units out on my drive lol.... C
Honda 928TA, Ariens 924 STE, Toro single stage S-620, 95 Jeep Wrangler with a 6 foot Fisher Plow, many shovels, one 14 year old boy. Craftsman 01 1000 LTX pimp Gold LT 20hp Briggs OHV V-twin. Tough as it is ugly.
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snowshoveler
tides in dirts out surfs up
Location: bridgewater nova scotia...aka the swamp
Joined: Jan 3, 2003
Points: 1261
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Re: Worth a look
Reply #9 Feb 14, 2005 7:44 pm |
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looks impressive... i would like to see the gear box in the front end. thats where the new ones have all the trouble...i spend way too much time in the bucket of them. they still make a 4 wheel unit but the wheels are all on same axle. later chris
craftsman 10/28 snowblower with tracks husky 372xpg chainsaw sachs dolmar bc212 bushsaw mondo trimmer monster tractor with trailer cheep wheelbarro and couple shovels and a partridge in a pear tree
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Ben07
The more you know about something, the more you find there is to know.
Location: Pittsburgh, PA
Joined: Feb 26, 2004
Points: 178
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Re: Worth a look
Reply #11 Feb 14, 2005 7:48 pm |
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Chris when you looked at it what wheels did what. Reason I am askin is at first I think you would think it would be a bear to turn, unless two differentials. Na Too expensive. two wheels on one side, na wouldn't go straight in high snow an still be hard to turn. I would guess very similar to a 4x4 , one drive wheel on each axil on opposite sides, (like rf an lr). so that when you turned there wouldn't be any two wheels pinned on the same axil, however when you did turn would have to lift up on the drive lever to let everything free wheel. Similar to putting your four wheel drive truck's transfer case in neutral. If that is the case, it would be almost as good as a differential unit, , an almost the capabilities of toro power steer cept no power when you turn. However you might be able to spin that baby around as easy as a shopping cart at the food store. If it is cheaper an almost as good, who knows it may be used again with success. Hurry up get the owner in here to write a review before he sells it!! Ben07 Oh P.S.your question on that 4wd snow blower, don't know how they did it, but apparently that is an example of the full statement, it is 4 wheel drive, all 4 drive and they are in full lock-up with each other, no slippage etc. .the trigger mechanism somehow unlocks one complete side or the other when turning.. Did they do it with belts, they could have but my personal guess if I were a betting man and the way I would do it would be with another gear or a chain system.
This message was modified Feb 20, 2005 by Ben07
Ariens 8524LE, Toro CCR2000, Jacobsen S-B S-blowers, Generac 10hp Gen-convt. to N.G., 5 L-boys(D's F's &Dura( 74,77,80,88,00), Antiq. 1960 AYP 20 in. mag w 3.5 Tech mower. Ryan/Ryobi gas Trim. AYP 205 gas blwr. Mac c-saw,Toro E-blwr, 2 Weed-E e. stg. trims. outboards, boats, util trail, 2 Jeeps
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jogo
Location: Westchester N.Y.
Joined: Sep 8, 2003
Points: 463
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Re: Worth a look
Reply #12 Feb 14, 2005 7:51 pm |
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A review and a link... http://www.popularmechanics.com/home_improvement/home_improvement/1275641.html?page=2&c=y Made in 1995... few more pics at link.. " With its four-wheel configuration, this Tecumseh-powered 8.5-hp machine fits the niche between track-drive units and smaller dual-wheel throwers. However, the four wheels are far from the whole story. For maximum traction, two-wheel snowthrowers have both wheels locked to the axle. Manually freeing one wheel before you start out makes for easier steering, but you lose that wheel for traction. Cub Cadet's steerable 826 has an on-the-fly drive-disengagement mechanism. Here, a small lever under each handle frees the wheels on that side so turning in that direction is easier. In the straight-ahead position, there's power to both sides. The system really works, and with a little practice, you can spin this heavy machine on a dime. You'll still wrestle with it a bit on tight turns, but slow curves are effortless. The Model 826 has a descriptive control panel with a lever for six forward and two reverse speeds (Photo 1). A second lever controls chute tilt, and an electric motor adjusts chute rotation (Photo 2). The handle-mounted auger and drive levers feature an auger-lock system so you can keep moving with one hand (Photo 3), and there are even electric heaters in the grips (Photo 4). We found that the 20-in.-high x 26-in.-wide chute gobbled up everything in its path. Only when deep snow reached the top of the chute did our overloaded 826 lose forward motion due to slippage in the internal drive clutch. Complete with electric start, the Cub Cadet 826 costs about $1300 at Cub Cadet dealers. Contact Cub Cadet, P.O. Box 368023, Cleveland, OH 44136; www.cubcadet.com."
This message was modified Feb 14, 2005 by jogo
Red Max EB78001 blower Echo PB1000 blower Sears ? blower Sears 16" chainsaw John Deere STX38 Murray 21" push mower Echo SRM1501 weed wacker Excell/Honda pressure washer Ariens 11528
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Ben07
The more you know about something, the more you find there is to know.
Location: Pittsburgh, PA
Joined: Feb 26, 2004
Points: 178
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Re: Worth a look
Reply #13 Feb 14, 2005 7:55 pm |
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Ok thanks, so it is similar to the toro power steer cept four wheels Thank you Ben07
Ariens 8524LE, Toro CCR2000, Jacobsen S-B S-blowers, Generac 10hp Gen-convt. to N.G., 5 L-boys(D's F's &Dura( 74,77,80,88,00), Antiq. 1960 AYP 20 in. mag w 3.5 Tech mower. Ryan/Ryobi gas Trim. AYP 205 gas blwr. Mac c-saw,Toro E-blwr, 2 Weed-E e. stg. trims. outboards, boats, util trail, 2 Jeeps
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nibbler
Joined: Mar 5, 2004
Points: 751
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Re: Worth a look
Reply #16 Feb 19, 2005 9:34 am |
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I would guess very similar to a 4x4 , one drive wheel on each axil on opposite sides, (like rf an lr). so that when you turned there wouldn't be any two wheels pinned on the same axil, however when you did turn would have to lift up on the drive lever to let everything free wheel. Similar to putting your four wheel drive truck's transfer case in neutral. If that is the case, it would be almost as good as a differential unit, , an almost the capabilities of toro power steer cept no power when you turn. However you might be able to spin that baby around as easy as a shopping cart at the food store. Perhaps I'm confused but this doesn't describe a 4x4. A 4x4 has 4 wheels and 4 driven wheels. What is being described is a 2x4 with a funky drive train. It looks like it would be more expensive to build than 4 driven wheels on two differentials which is what I believe a true 4x4 uses. The transfer case either switches the drive train between high and low range(s) and/or between 4 and 2 wheel drive. I.E. 2 wheel high and low, 4 wheel high and low. Then you have the whole wheel lock thing. I remember a power wagon where once the wheel locks were engaged you were supposed to back up about 30m ( 100ft) before going forward. I've heard of some vehicles that claim to send power to each wheel "as needed" but I suspect what they actually have is two differentials and some sort of brake that allows them to control how much doesn't go to a wheel. Does anyone have a better expalantion, I'm sort of guessing on this one? The only other way I can think of would be a hydrostatic transmission with a What I'd like to see is something like this: 1. 4 wheels 2. Each wheel is steearable; and 3. Each pair can be set to either move opposite or the same as the other pair. That way you can either turn on a dime or move sideways. Great for parking.
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18Degrees
Joined: Jan 19, 2005
Points: 111
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Re: Worth a look
Reply #17 Feb 19, 2005 3:10 pm |
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What I'd like to see is something like this:
1. 4 wheels 2. Each wheel is steearable; and 3. Each pair can be set to either move opposite or the same as the other pair.
That way you can either turn on a dime or move sideways. Great for parking. It is called a Bobcat ( skidsteer ) 18 degrees
18 Degree driveway - 928 Honda track drive - Fertilizer spreader for dispensing salt
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Ben07
The more you know about something, the more you find there is to know.
Location: Pittsburgh, PA
Joined: Feb 26, 2004
Points: 178
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Re: Worth a look
Reply #19 Feb 19, 2005 5:54 pm |
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Quote from Nibbler "A 4x4 has 4 wheels and 4 driven wheels." Nibbler, I believe that what you are describing there is"all wheel drive" I just browsed your question, so I will just give you a fast answer here, so sorry if I miss anything. Let me try and put this in a list for build up of understanding, and there are variences to this such as limited slip being synonomus with a posi, I am not gonna distinguish there, too many keystrokes this is just general OK -rear wheel drive car only the right rear wheel drives -positraction rear wheel drive both rear wheels can drive , however it can vary and transfer all the power to either side, in like snow. -Four wheel drive the standard Has a diff in the front and one in the rear. only two of the wheels drive. usually the left front and the right rear, This is still called 4 wheel drive. Why I don't know (this is what you described as "What is being described is a 2x4 with a funky drive train" no it is not a funky drive train. This is what the standard four wheel drive train is and always has been since the willies jeep and the dodge power wagon, and still the most used and produced today. -all wheel drive same as the above 4 wheel drive except the differentials have a positraction system so a lot of time all the wheels drive or it can transfer the power to the wheels that don't slip -front wheel drive . almost all front wheel drive cars only have one wheel driving. Except for the ones on the higher end models that have an option called "Traction Controll" i.e. a button next to the gearshift that you push to lock in the other wheel for temporary help say for starting out at a traffic light on a hill etc. you can only use it temporarily as it will bind on dry roads around bends etc. Ask your self this question, right after you say to yourself, what do you mean my front wheel drive only has one of the wheels pulling? Then why would they offer the expensive option of traction controll? Or maybe you have a newer Jeep Grande Cherokee. Look at how it is advertized You can get select track, or Quadra-Trac (ok quadra must mean 4 , in this case no, still only 1 on front and one on rear driving,when it senses a slip. (there are different variations of these over the years, no need to waste key strokes and most of them have been skunked/eliminated) or you can get Quadra-trac2 with traction controll that transfer from the wheels that slip yada yada. (it is no different than the quadra trac sys, it only has the addition of posi units added into the differentials that is the only 4X4 system they have with four wheels driving it is equalavent to all wheel drive. However all levels of their system are badged a 4X4. (command trac select trac quadra trak quadra trac2 quadra trac 2 with traction controll all say 4X4) So your statement of "A 4x4 has 4 wheels and 4 driven wheels." could be summed up as that is what it should be, but it actually is not what it is .. Maybe you could call it a cliche'. similar to the discussions you were questioning on the horsepower overstatements. So I guees you can do as you suggested there, don't worry about it and buy more than you need. Pay the big money for the all wheel drive to insure you actually get what you defined as 4 wheel drive. I don't think they will ever come out with an advertisement of an 8 wheel drive model on a four wheeled vehicle, cause that would be too obvious they are overstating their product in the first place. But if they did I am sure their would be some who would buy it. Buy the way am I saying all wheel drive is necessary. No my personal preference is the standard 4X4. no need to pay all that extra money, especially for the cost of fixing All wheel drive, and I believe it is a well known fact that 4 wheel is like 97 percent as good as all wheel drive,(must be cause that is the only kind they made for like the first 50 years of 4x4's, ) in snow and mud and dirt, does it have a little edge in rock climbing, yes, but I never seen anyone rock climb with an all wheel drive, too expensive and prone to breaking in those conditions. They are good in some high speed racing aspects though, Subaru is famous for this oversea's races etc. Regards Ben07
This message was modified Feb 20, 2005 by Ben07
Ariens 8524LE, Toro CCR2000, Jacobsen S-B S-blowers, Generac 10hp Gen-convt. to N.G., 5 L-boys(D's F's &Dura( 74,77,80,88,00), Antiq. 1960 AYP 20 in. mag w 3.5 Tech mower. Ryan/Ryobi gas Trim. AYP 205 gas blwr. Mac c-saw,Toro E-blwr, 2 Weed-E e. stg. trims. outboards, boats, util trail, 2 Jeeps
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Ben07
The more you know about something, the more you find there is to know.
Location: Pittsburgh, PA
Joined: Feb 26, 2004
Points: 178
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Re: Worth a look
Reply #20 Feb 20, 2005 2:59 pm |
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F Y I That Cub Cadet 4x4 sold on e-bay. They got the min bid allowed of 500 dol-lazs. I think good deal if lived close enough for pick-up.
Ariens 8524LE, Toro CCR2000, Jacobsen S-B S-blowers, Generac 10hp Gen-convt. to N.G., 5 L-boys(D's F's &Dura( 74,77,80,88,00), Antiq. 1960 AYP 20 in. mag w 3.5 Tech mower. Ryan/Ryobi gas Trim. AYP 205 gas blwr. Mac c-saw,Toro E-blwr, 2 Weed-E e. stg. trims. outboards, boats, util trail, 2 Jeeps
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18Degrees
Joined: Jan 19, 2005
Points: 111
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Re: Worth a look
Reply #21 Feb 20, 2005 3:25 pm |
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-all wheel drive same as the above 4 wheel drive except the differentials have a positraction system so a lot of time all the wheels drive or it can transfer the power to the wheels that don't slip
From what I have read, the AWD (All Wheel Drive) is like for 4wd but no low range transfer case, not built as tough, more likely to be automatically engaged, but light in overall weight too. Like you pointed out ben07, most of us drive a one wheel wonder. i liked your post
18 degrees Do you think they have a belt to link the front wheels to the rear on this snowblower?
18 Degree driveway - 928 Honda track drive - Fertilizer spreader for dispensing salt
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Ben07
The more you know about something, the more you find there is to know.
Location: Pittsburgh, PA
Joined: Feb 26, 2004
Points: 178
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Re: Worth a look
Reply #22 Feb 20, 2005 4:35 pm |
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Hi 18 degree,, sry for that long post, and as you recognized thest things are more easily answered in a conversation, preferrably over a beer, so the actual question can be answered by staying on center, then explore the periferial things. I know you know what I mean. And I am no rear-end/ differential expert, I was however good at blowing them up . So with that in mind I can best fast answer your question, not necessarily with the facts first but with some examples, sry about that. First the transfer case in your thoughts can be completely left out of the thought process at first., cause it is not directly part of the question, yes it is part of a 4 w drive. So here goes you can indeed have a trans case on an all wheel drive that has 4 high and 4 low. You can also have an all wheel drive with only the 4 high. example Jeep G Cherokee has the full blown all wheel drive on their top complicated system and it can all go into the 4 wheel low. Your question would be then why do some vehicles come without them. (the actual predominanent reason is they started going that direction when putting 4 w d options on front wheel predominanent vehicles and the following. The manufacturers and some owners know they will never need or use 4 wheel low even when taking the kids to sports practice in the winter. So the manufacturers, like that 4 wheel ford thingy, don't put the extra expense in it for a two speed option in the transfer case. It is also very cost effective to leave out on a front wheel based car .. .. A good advertisement I read when like the Acura MDX first came out . is they noted clearly the vehicle was very good to get you to your hunting camp on dirt roads, but it is not meant to be used for things that High and low transfer cases will do. cause it don't have one I am not an expert on some of the all wheel drive things on like the BMW's and Mercedes, I did go over a subaru, a little but they don't actually have what I would call a transfer case. they had some kind of gismo the size of a grapefruit underneath doin the job, why, cause it was obtaining it's all wheel drive from a front wheel drive not fron the standard rear drive models that then goes to 4 w d. As you see there are various aspects of things called thus consider to be somewhat the same thing, however it that example you can see if one cones off a front predominant veh and one comes off a rear predominant thing .. the results can be called the same all wheel drive, but how they accomplish it can be very much different. Hope I made some sense Re question if you like as I am sure there are lots that can field your questions better than I and I will still get in and muck it up a little too Thx again Ben07
This message was modified Feb 20, 2005 by Ben07
Ariens 8524LE, Toro CCR2000, Jacobsen S-B S-blowers, Generac 10hp Gen-convt. to N.G., 5 L-boys(D's F's &Dura( 74,77,80,88,00), Antiq. 1960 AYP 20 in. mag w 3.5 Tech mower. Ryan/Ryobi gas Trim. AYP 205 gas blwr. Mac c-saw,Toro E-blwr, 2 Weed-E e. stg. trims. outboards, boats, util trail, 2 Jeeps
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boblloyd
"Forty-two," said Deep Thought, with infinite majesty and calm.
Location: MA
Joined: Dec 2, 2002
Points: 424
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Re: Worth a look
Reply #23 Feb 20, 2005 7:06 pm |
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Quote from Nibbler "A 4x4 has 4 wheels and 4 driven wheels." Nibbler, I believe that what you are describing there is"all wheel drive" I just browsed your question, so I will just give you a fast answer here, so sorry if I miss anything. Let me try and put this in a list for build up of understanding, and there are variences to this such as limited slip being synonomus with a posi, I am not gonna distinguish there, too many keystrokes this is just general OK -rear wheel drive car only the right rear wheel drives -positraction rear wheel drive both rear wheels can drive , however it can vary and transfer all the power to either side, in like snow. -Four wheel drive the standard Has a diff in the front and one in the rear. only two of the wheels drive. usually the left front and the right rear, This is still called 4 wheel drive. Why I don't know (this is what you described as "What is being described is a 2x4 with a funky drive train" no it is not a funky drive train. This is what the standard four wheel drive train is and always has been since the willies jeep and the dodge power wagon, and still the most used and produced today. -all wheel drive same as the above 4 wheel drive except the differentials have a positraction system so a lot of time all the wheels drive or it can transfer the power to the wheels that don't slip -front wheel drive . almost all front wheel drive cars only have one wheel driving. Except for the ones on the higher end models that have an option called "Traction Controll" i.e. a button next to the gearshift that you push to lock in the other wheel for temporary help say for starting out at a traffic light on a hill etc. you can only use it temporarily as it will bind on dry roads around bends etc. Ask your self this question, right after you say to yourself, what do you mean my front wheel drive only has one of the wheels pulling? Then why would they offer the expensive option of traction controll? Or maybe you have a newer Jeep Grande Cherokee. Look at how it is advertized You can get select track, or Quadra-Trac (ok quadra must mean 4 , in this case no, still only 1 on front and one on rear driving,when it senses a slip. (there are different variations of these over the years, no need to waste key strokes and most of them have been skunked/eliminated) or you can get Quadra-trac2 with traction controll that transfer from the wheels that slip yada yada. (it is no different than the quadra trac sys, it only has the addition of posi units added into the differentials that is the only 4X4 system they have with four wheels driving it is equalavent to all wheel drive. However all levels of their system are badged a 4X4. (command trac select trac quadra trak quadra trac2 quadra trac 2 with traction controll all say 4X4) So your statement of "A 4x4 has 4 wheels and 4 driven wheels." could be summed up as that is what it should be, but it actually is not what it is .. Maybe you could call it a cliche'. similar to the discussions you were questioning on the horsepower overstatements. So I guees you can do as you suggested there, don't worry about it and buy more than you need. Pay the big money for the all wheel drive to insure you actually get what you defined as 4 wheel drive. I don't think they will ever come out with an advertisement of an 8 wheel drive model on a four wheeled vehicle, cause that would be too obvious they are overstating their product in the first place. But if they did I am sure their would be some who would buy it. Buy the way am I saying all wheel drive is necessary. No my personal preference is the standard 4X4. no need to pay all that extra money, especially for the cost of fixing All wheel drive, and I believe it is a well known fact that 4 wheel is like 97 percent as good as all wheel drive,(must be cause that is the only kind they made for like the first 50 years of 4x4's, ) in snow and mud and dirt, does it have a little edge in rock climbing, yes, but I never seen anyone rock climb with an all wheel drive, too expensive and prone to breaking in those conditions. They are good in some high speed racing aspects though, Subaru is famous for this oversea's races etc. Regards Ben07 Ben, I think there are a few misconceptions in your post. -rear wheel drive The differential shares torque EQUALLY between both rear wheels. This leads to problems if traction is poor. For example if you jack one wheel off the ground torque goes to zero and the wheel spins. This means torque is zero on the other side too and that wheel can't move at all even if the traction is good there. Front wheel drive is basically the same except with the drive axle in front -positraction rear wheel drive Also called limited slip differential. This design adds a clutch pack or viscous coupling inside the differential to limit the difference in wheel speeds, overcoming the problem illustrated above. More recently Electronic Traction Control does the same thing with a computer sensing each wheels speed and applying the brake to the one that's spinning faster. There are also special off-road differentials that can be locked to inhibit the differential action completely. -Four wheel drive Also called part-time four wheel drive. This adds another differential and axle to the front, driven through a transfer case that allows the front to be disengaged. (and often allows a hi/lo range). Disengagement is crucial because there is no differential gearing between the front and back. This makes it very hard to turn the vehicle on pavement when engaged and causes excessive wear on the tires and drivetrain on the highway. Torque is still shared equally left/right but not front/back. Serious rock climbers like this system often with the full locking differentials described above. -all wheel drive Also called full-time four wheel drive. Same as 4WD except a third differential gear or a viscous coupling is added between the front and back drive shafts to eliminate the problem with part-time 4WD described above. This system can be left on all the time and no disengagement is required. May have electronic traction control too. Naturally there all all kinds of variations to these systems and even the manufacturers are not always consistent in their terminology. -Bob
This message was modified Feb 20, 2005 by boblloyd
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Ben07
The more you know about something, the more you find there is to know.
Location: Pittsburgh, PA
Joined: Feb 26, 2004
Points: 178
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Re: Worth a look
Reply #25 Feb 20, 2005 8:59 pm |
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Bob I am aware of the additional applications etc and other things that complicate the issue that is why I started that post out with the following statement. and there are variences to this such as limited slip and I am not gonna distinguish there, too many keystrokes this is just general OK If I would have added all the stuff about part time full hook-up and full time viscus joints and chain slack viscus slippage etc etc. I don't think the person would have been able to get thee general idea etc. And yes I am glad to see that there are those (Marshal in this case)that understand there is a difference between limited slip and full fledge posi traction. Now for your question of jacking the car up and the power transferring. etc. If you take a vehicle with an old fashioned rear end , no limited slip, and no posi, just the standard ring and pinion (called a single action rear end), you raise the right rear wheel and that car will not go anywhere and that is the only wheel that will spin. And I stated I was leaving limited slip out of the equasion, your disagreement assumes that limited slip is there. mine does not. Best way to describe limited slip, is that it doesn't quite transfer power to the left side. However it will pick up some (absorbe excess thru the system) of the power if there is an excessive amount of slippage in the primary drive tire. Here's an example limited slip rear end Fast start so you will put down some rubber, only the right rear wheel will spin. now do a real agressive fast start, as in dumping the clutch and really spinning the rear, in this case both rear wheels will break at first, at the beginning of the burn then the left one will stop after lets use some nunbers here. from start of dump both wheels will leave a tire mark for say 20 feet then left will stop leaving the rubber trail and the right one will continue marking for say another 20 feet. Summary. two tire marks but the left one will be shorter.. ( I am sure you have seen these type tracks out on like country roadds where some one was doin a little excessive horsepower burn outs. One tire line longer than the other. Take that same vehicle on some dirt, hit he gas just enough to spin the wheels and both will spin in the dirt, hard to diffrentiate there. Take your standard dual differential 200 hp suv out on some drive pavement and jump on it, you may be be able to get a little chirp out of it, get out and look and you will see the only two tires that marked are the lf and the rr. even if they do have limited slip. Thanks for your key strokes on the posi units Marshall,, and remember when you change the gear 90 w oil, don't forget to add the posi clutch additive which I might add the limited slip or single action don't need Ben07
This message was modified Feb 20, 2005 by Ben07
Ariens 8524LE, Toro CCR2000, Jacobsen S-B S-blowers, Generac 10hp Gen-convt. to N.G., 5 L-boys(D's F's &Dura( 74,77,80,88,00), Antiq. 1960 AYP 20 in. mag w 3.5 Tech mower. Ryan/Ryobi gas Trim. AYP 205 gas blwr. Mac c-saw,Toro E-blwr, 2 Weed-E e. stg. trims. outboards, boats, util trail, 2 Jeeps
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Ben07
The more you know about something, the more you find there is to know.
Location: Pittsburgh, PA
Joined: Feb 26, 2004
Points: 178
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Re: Worth a look
Reply #28 Feb 22, 2005 2:48 am |
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Hi Bob how r u? Sry been busy. Yes there is a little bit of axil twist involved, and I am very glad you brought that up. Seriously I am not kidding you. Shows you are a thinker and have much more understanding than someone who more or less just reads brochuiors. Tells me you are somewhere in between a rocket scientist mechanic and an above average mechanical person. Point you are quite capable of understanding practical application, and have fun with it as two heads are better than one etc. So it may at times sound like I am disputing you, however you understand that is the way it is with mechanical processes, it is not as surface level as some may think. You were dabbling in something like conventional rear ends. So lets clarify that. Limited slip diffs were not put on any production cars till the late 50,s Therefore cars were being made with rear ends in them for 50 prev years. Their rear ends I would thus call them the conventional ones. They were called single action, or ring and pinion yada yada. Then to the consumer (not the race enthusiast as there were LSD's and full lock units avail there) came the advent of the Limited slip diff. A device that was suppose to transfer power at torque sensitive applications/speeds and different driving conditions, with slippage between two wheels that have to travel different distances around bends. on the same axil plane. That is why they named it "differential. " At the same time they started calling the older style rear ends, simple diff's. which can just confuse everybody cause everybody just started calling every rear end a differential. Then there was an enhancement made to LSD's and for an example we will use GM's Positive traction. Then everyone started calling them posi and also calling the LSD's posi. To boot, two of the three are very complicted mechanical applications, that are suppose And the key word here is suppose to do a lot of the same type things. Truth they all try and some succeed and some don't. Basically because there are differences in their design. Positraction, works well The GM Version. It primarily, not secondarily now, it primarily splits the torque between the two wheels. Then it allows for differential in turns, and under low torque situations it can and does at times transfer the entire 100 percent of power to one wheel or the other. It's primary function is 50 50 split. Limited slip Is named well , it is limited and it slips. Now keep this in mind when I make the statement of LDS having a primary dependency on the righr rear wheel when going forward. When you raise both rear wheels on both type vehicles, and put the car in neutral no brake etc and you by hand turn lets first say the posi unit one of the wheels, you can look under the car and see the other wheel spinning the same speed in the same direction,in relation to forward or reverse. You go to the car with the limited slip diff and turn one of the rear tires, lets say to simulate the direction it would turn when traveling forward, you look under at the other wheel and the funny thing is it will be turning opposite direction. That is also a quick test to see if you actually got posi on your vehicle. They are different systems. Where is this all going is here the posi units work well .. the production limited slips hardly work at all when driving the car. They are little better if any better at all than a simple diff. They are a very cheap version of a true differential. It gets complicated there are I believe they break them into classes, like class1 and class 1.5 and class2 etc. ,Clutch strength and torque applications, LSD's are very sensitive to torque applications, posi's are not , only low torque conditions low revolutions, like in up hill snow driving. Other than that they are primarily 50 50. Most people I know will tell you they never found a LSD that actually worked except for an aftermarket one. Every one I owned , and I live in a very hilly environment, actually at the start of the Allegheny mountains. When you go up a hill in the snow the only wheel that will spin is the right rear, How can I tell cause when the car will not go up anymore or I am going at a crawl I can feel it and hear it number one, but I can also open my door and look at the tire, and I have never found one of them spinning, Different engine rpm's feather the gas on and off etc. It is almost always a dead wheel. Now the right one is spinning it is suppose to transfer power to the left, never had it happen, never knew anyone who had it happen, and never saw it happen , and tried many times to make it happen. It was always a constant gripe by everyone who ever had them in these hilly environments, It has been written about in the standard auto magazines for years and the articles on them are often titled the Myth of LSD. Except if you are reading something that is basically trying to sell or not knock the manufacturer, then you get a blurb like it comes standard with LDS. It also has a limited factor to it by it's design where someone may think well if I spin the rear wheel faster then I might be able to get some more power from the other. Under those conditions it transfers all the power to the spinning wheel, thus nothing left over for the otherside. Front wheel drive. I never saw any of them spin any more than one wheel in the snow. Had to push a guy out of an establishment after a Monday N NFL game, in an adjacentlot half paved half cinders, partially snow covered. LF wheel only spinning, it's in the muck Right f wheel on solid dry surface, No matter which way he turned that wheel, or any other thing he did was there any sign at all from the dead wheel.. How do I know cause I knew it was gonna happen that way so that was the side I was pushin on and the other fellows were really swearing as they were getting covered with muck. I have never found one or knew of anyone who found one that works with any amount of appreciable. force The only time I have seen the Left tire grab is on a sudden High speed burn out, like a neutral to drive or a high rpm clutch dump. The other instance. Is the one that comes into play with your realization of the axil twist. The left one will spin on a left turn burn out in reverse, (weight slitly shifted off that wheel in reverse torque of the drive shaft. ) Oh forgot have seem many people brake torque them to the limit, Not my personal preference so I don't like to go to an extreme in that situation. You would think that the added effect of brake pressure on the system would further enhance some of that power to the left wheel. Seen it I don't know how many times, with an lsd only the right rear spinning Now there is a lot of different type stuff out there that work, I believe Jeep is suppose to have one, it might be called full lock-up One that I know that worked for sure was the VW bug, and most of the all wheel drives with the Viscus joints and few posi type"s, Tranfer torque, but don't know of any LSS's doin the job Which reminds me How do the diff's work on the snowblowers, like the ariens, I would have to think that under those conditions they could have to be able to make a differential that gives you power to both wheels, I never tested one, but I constantly see owners saying that they really have to lock the mechanism in deeper snow or up hills, I just cring, and say I hope they are not as bad as the automobile LSD myth Ben07
This message was modified Feb 22, 2005 by Ben07
Ariens 8524LE, Toro CCR2000, Jacobsen S-B S-blowers, Generac 10hp Gen-convt. to N.G., 5 L-boys(D's F's &Dura( 74,77,80,88,00), Antiq. 1960 AYP 20 in. mag w 3.5 Tech mower. Ryan/Ryobi gas Trim. AYP 205 gas blwr. Mac c-saw,Toro E-blwr, 2 Weed-E e. stg. trims. outboards, boats, util trail, 2 Jeeps
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Richie
Bring On The White Stuff
Location: Long Island, New York
Joined: Dec 12, 2003
Points: 562
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Re: Worth a look
Reply #29 Feb 22, 2005 6:53 am |
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The reason why the right wheel on the back axle tends to break free first (and the left front in your SUV) is because of drive shaft torque. Think about it. Under hard acceleration the drive shaft wants to twist the axle and this takes some weight off one wheel. -Bob Hi Bob,
Your statement makes perfect sense to me on a vehicle with solid axles on front or back. But what about a good number of cars that have independent suspension front and rear? The point of independent suspension is to keep the tires firmly planted on the ground on varied conditions. I would have thought in a case like that, it wouldn't make a difference. The suspension would compensate for any torque-over. Getting stuck in the snow with a standard differential, only the right rear tire would move. There was a trick around here when stuck in a situation like that, the only way to get both rear wheels to drive was to slowly engage the emergency brake to some point, this would enable both rear wheels to turn, usually allowing you to get yourself unstuck.
Richie
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Ben07
The more you know about something, the more you find there is to know.
Location: Pittsburgh, PA
Joined: Feb 26, 2004
Points: 178
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Re: Worth a look
Reply #30 Feb 22, 2005 10:52 am |
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Richie you are throwing a lot of correct applications in to the pot. Lets just touch on them as one of em may just slightly get turned around. The reason is your example is great but even better if you turn it around and put it on the front of a car, a front wheel drive one where it does not have what is a term"a live axil plain" more commenly reffered to as a live axil. In the FrontWD it has two independant Constant velocity joint axils.(two axils independently each side not housed therefore trued up with a CV joint. There is no overall one piece casting connecting both axil's together., and the physics of these axils are pulling the car not pushing it which would further eliminates the aspect down to null. That is why the front example enhances your thoughts better as some will argue that the rigidity of the system in the rear would nulify any type of independant suspension aspect. So just to leave a possable gray area out, I am gonna turn it around to the front where the slight axil twist of a conventional system don't come even close to coming into play. That's where you insight on independent suspension on the whole comes into play in a state of the art situation. . You know how this goes, you don't dot an eye and cross a tee, people pick on one slight gray area and try an make themselves an expert an you a fool, even if you set up the whole thing as I did and specifically said I was taking all aspects of LDS out of my explanation. One because it is too complicated and 2 because they don't really work in production models. And I got countered even when doing that, by saying I was saying misconceptions and the misconceptions were trying to be countered by using the Limited Slip Diff Applications (talk about seeing the punch coming ahead of time) I don't mind I will go there, take a lot of key strokes, getting countered there and someone saying, misconceptions is getting hit below the belt, so ok let's discuss the falacy of Limited slip. So you are 100 percent right no axil twist there on front drive and the suspension further rules it out , however on Front wheel drive models they offer the option of traction control to try and help the so called automatic transfer from side to side. Well why would they offer it if it worked in the first place, obvious answer is It really don't work in the real world. And the small references I made to the burn being longer on the right side, is not responsable because of axil twist. Your example is a much better way of showing it rather than me saying there is axil twist but it don't come into play, and that the twist would actually cause the opposite and the left tire strip would actually be longer due to the less weight condition he reffered to in the first place. Thanks for the further/better/sharper point Richie.. Back to your touching the break a lil when starting out on the snow. That is a perfect example of probably one of the only applications where you can get a little amount of Limited slip to help you. Reason being it is a slow start and the vehicle is not under load(remember torque sensative, had to reinforce that as I can see another punch coming here, so I will just pre type the answer and have it ready) , Same with the application of traction control, slow start vehicle not under load. LDS is torque range sensitive, that don't mean it has slow overall application to the process, it means it does completely different things at different speeds/ torques. It is so full of not working more that working ,mechanics will not even try to understand them as the general consensus is they just don't work. Thus the general consensus of if you have front wheel drive you actually only got one wheel pulling and on conventional 4x4 to be actually only two wheels pulling. Very Thorough in your points R. here is another example of the snow thingy. I had an LSD car, that nomatter how perfect you kept the Emergency brake system and rear brakes, I mean in the condition of a well oiled shotgun, In the slush and snow and freeze, it would freeze up. Consequently someone would use the car, tell them not to use the E-brake unless you have to. What the car would do to them is they would be parked with all four wheels on snow, they would release the brake and try to move, the brakes would be hung , the right rear would break because the LDS put the power there. However the left brake shoe would be hung up, so the person cannot move the car. Cause the right wheel and note only the right wheel., is spinning on slippery surface and the left one has the brake on, and the LSD will not transfer any power over there. (naturally they would say I took the emergency brake off and the car still won't go, kinda like some accusations here when the real issus is I told you not to put it on in the first place.) So I would go get them or over the phone to just start the wheel spinning and slowly press on the brake and pop it would trans enough over to break the lock. If it worked the way it was suppose to one would never have to do that
This message was modified Feb 22, 2005 by Ben07
Ariens 8524LE, Toro CCR2000, Jacobsen S-B S-blowers, Generac 10hp Gen-convt. to N.G., 5 L-boys(D's F's &Dura( 74,77,80,88,00), Antiq. 1960 AYP 20 in. mag w 3.5 Tech mower. Ryan/Ryobi gas Trim. AYP 205 gas blwr. Mac c-saw,Toro E-blwr, 2 Weed-E e. stg. trims. outboards, boats, util trail, 2 Jeeps
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Ben07
The more you know about something, the more you find there is to know.
Location: Pittsburgh, PA
Joined: Feb 26, 2004
Points: 178
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Re: Worth a look
Reply #33 Feb 23, 2005 12:49 am |
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. Ben, I suspect we still disagree somewhat on how differentials work but it's been a lively discussion anyway. -Bob Thx Bob I appreciate your comments. I'd be willing to bet if we were talking in person over a couple of beers, we would be able to explain each others aspects much better, and not disagree as much as it appears. ,, and learn more in the process. Two heads are better than one etc.
Hard to do some of that in the forum , typing on a computer, context, emphasis gets confusing etc. If you can ever help me out feel free to step in. I'll do the same. Regards Ben07
Ariens 8524LE, Toro CCR2000, Jacobsen S-B S-blowers, Generac 10hp Gen-convt. to N.G., 5 L-boys(D's F's &Dura( 74,77,80,88,00), Antiq. 1960 AYP 20 in. mag w 3.5 Tech mower. Ryan/Ryobi gas Trim. AYP 205 gas blwr. Mac c-saw,Toro E-blwr, 2 Weed-E e. stg. trims. outboards, boats, util trail, 2 Jeeps
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Ben07
The more you know about something, the more you find there is to know.
Location: Pittsburgh, PA
Joined: Feb 26, 2004
Points: 178
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Re: Worth a look
Reply #34 Feb 23, 2005 1:25 am |
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back to the question on the 4 wheeled snow blower, how does the blower drive the 4 wheels ? 18 degrees I believe it came out that the person who looked at it said all four wheels turned, as they were directly hooked up to the drive line. They said there was a trigger on each handle that lets use the example if you wanted to turn left you would activate the left trigger and it would in essence disconnect the left two wheels from the system, and they would then be free wheeling.
I think it may be similar to what toro has, on their high end models, so you could research there. IWill PM someone whom I think has that sys and see if he will post here as I wanted to ask him how it worked anyway
Ariens 8524LE, Toro CCR2000, Jacobsen S-B S-blowers, Generac 10hp Gen-convt. to N.G., 5 L-boys(D's F's &Dura( 74,77,80,88,00), Antiq. 1960 AYP 20 in. mag w 3.5 Tech mower. Ryan/Ryobi gas Trim. AYP 205 gas blwr. Mac c-saw,Toro E-blwr, 2 Weed-E e. stg. trims. outboards, boats, util trail, 2 Jeeps
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Ben07
The more you know about something, the more you find there is to know.
Location: Pittsburgh, PA
Joined: Feb 26, 2004
Points: 178
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Re: Worth a look
Reply #36 Feb 23, 2005 4:21 pm |
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Richie where does your Toro disengage at Ben 07
Ariens 8524LE, Toro CCR2000, Jacobsen S-B S-blowers, Generac 10hp Gen-convt. to N.G., 5 L-boys(D's F's &Dura( 74,77,80,88,00), Antiq. 1960 AYP 20 in. mag w 3.5 Tech mower. Ryan/Ryobi gas Trim. AYP 205 gas blwr. Mac c-saw,Toro E-blwr, 2 Weed-E e. stg. trims. outboards, boats, util trail, 2 Jeeps
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Richie
Bring On The White Stuff
Location: Long Island, New York
Joined: Dec 12, 2003
Points: 562
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Re: Worth a look
Reply #37 Feb 24, 2005 10:31 am |
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Richie where does your Toro disengage at It actually seems like a simple design to me. Like with any snowblower, everything happens underneath under the hood. Directly in front of the friction disc there's an assembly called a pawl-clutch sprocket. It appears to serve a similar function as a pressure plate does on a car, including spring loaded fingers. In front of that is the wheel axle, which is actually two axles, each with it's own 44 tooth sprocket, separated by what's called a tube axle, which until you pull a trigger, actually allows both axles to work as one. So it doesn't have one continuous solid axle like my old snowblower had of course. When either trigger is pulled, it disengages that side, enabling the opposite side to remain powered. When both triggers are pulled simultaneously, it's like shifting into neutral.
Richie
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