Abby’s Guide > Outdoor Power Equipment (Lawn Mowers, Snow Blowers, Chain Saws and more) > Discussions > Toro 826OXE first oil change questions
Outdoor Power Equipment (Lawn Mowers, Snow Blowers, Chain Saws and more) Discussions |
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trouts2
Location: Marlboro MA
Joined: Dec 8, 2007
Points: 1328
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Re: Toro 826OXE first oil change questions
Reply #19 Jan 3, 2011 7:23 pm |
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Borat, something seems fishey with "The engine has 155 lbs. cold compression." "Seems", because I don't know Briggs. That would be an extreamly high number for a Tecumseh (warm) and would indicate something odd rather than good. How does a compression test sneak by Briggs compression release? There are a number of people here with new Briggs-Murray machines. Mabye a few could post some compression tests. On engines alive and kicking after 20 years on dino being proof that dino is good enough is a not much of a qualifier. Some might say their engine is as tight as the day they bought it but from seeing many older engines I have not seen one has not degraded. Run, toss and acceptably yes, plenty, but peak no. I've never seen older excellent engines toss as well as a rebuild or one of the new 6.5 HF OHVs on similar body styles. I ripped through the cemetary this week with a 7hp rebuild on a Areins ST724 and it was great. It had not tossed that well in many years. There is too much published on the added "slipryness" having a positive effect on rings and bore to deny. How much another question. No degredation curves for dino or synthetic that I know of. If anyone has some please post the URL.
This message was modified Jan 3, 2011 by trouts2
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borat
Joined: Nov 10, 2007
Points: 2692
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Re: Toro 826OXE first oil change questions
Reply #20 Jan 3, 2011 7:55 pm |
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"Borat, something seems fishey with "The engine has 155 lbs. cold compression."" Pulled the spark plug, screwed in the compression tester, spun the engine with electric start, reading was 150 psi. I'm not aware if this engine has a compression release mechanism or not. Either way, if you don't believe me, take a compression tester into a dealership with same engine and see if they'll allow you to take a reading on a new 305cc Kool Bore engine. See for yourself what reading you get. Please let us know what the compression reads when you do. edited to correct compression reading. It was 150 psi. not 155 psi. So, Trouts appears to have reasonable grounds to be suspicious after all.
This message was modified Jan 3, 2011 by borat
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mml4
Snow is good, Deep snow is better!
Joined: Dec 31, 2003
Points: 544
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Re: Toro 826OXE first oil change questions
Reply #21 Jan 3, 2011 7:57 pm |
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As I mentioned before I bought my son a Briggs Powered Simplicity Model#1060DLXE in 2005. The dealer showed me a document that stated if you used Briggs/Simplicity Dealer Line Synthetic OIl it would double your engine warranty.Even at $6 a quart it seemed like an inexpensive way to score an extended warranty. My unit which is powered by an L Head Tecumseh has seen 5-30 Amsoil since new. The advantage of the synthetic is it doesen't get as viscous as the conventional oil in cold temps and therefore flows better. I know that there is less resistance in the starter rope when cold than when I used conventional oil in a previous machine. I store my machine in an unheated shed and when cold using conventional oil it felt like the crank was turning through pudding. Marc
SnapperV210P,Toro22177,TroyBilt42010Snowthrower,Craftsman Shredder,American Turbo Pressure Washer HondaGX200,Stihl011Saw,EchoPas260Trimmer Edger,EchoPB602Blower,EchoHCR150Hedge Clipper
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trouts2
Location: Marlboro MA
Joined: Dec 8, 2007
Points: 1328
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Re: Toro 826OXE first oil change questions
Reply #23 Jan 3, 2011 8:54 pm |
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Borat "I'm not aware if this engine has a compression release mechanism or not." It does. I challanged Friiy on this a long time ago. I later looked into it more and found they all have compression release of one form or another. They have to or you would not be able to pull past the compression stroke or rip your arm in the effort. The 10hp I used in the cemetery tests has an outstanding engine just about new. It leak-down tests at 7-8% which is super. It compression tests at 60lb. I can spin the engine all day and it won't get beyond 60. The exhaust valve opens before the piston can get to full extension so it's impossible to get a high reading. Compression release is engaged at very low rpm like starting rope speed. That's how compression releases work. Depending on the engine either the exhaust or intake valve is raised before the piston can get very far into the compression stroke. That makes it easy to turn the crank. There is enough compression for starting but not full compression at the moment the fire starts. Once the piston fires the crank immediatly spins at a rapid rate the comression release gets pushed out of the way (on mechanical types) and the engine compression stroke then works normally. I'm not saying Borat is fishey. I'm saying the test result is fishey. I don't know Briggs but they have to have CR or manual starting would not be possible.
This message was modified Jan 3, 2011 by trouts2
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Spartan
Joined: Sep 19, 2010
Points: 14
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Re: Toro 826OXE first oil change questions
Reply #27 Jan 3, 2011 9:19 pm |
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I wish I had the ambition to answer each point your entire post but unfortunately I don't...
Don't worry, thats OK Borat, truth be told, I didn't read anything you wrote after this first sentence in your reply to me. What's the point, really? You shared your opinion, I shared my opinion and everyone else in the thread can listen to that or chime in with their own. Everyone wins. That's the great thing about forums. Seems like you're taking it a wee bit too personal and you shouldn't, really. Happy snow blowing.
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