Outdoor Power Equipment (Lawn Mowers, Snow Blowers, Chain Saws and more) Discussions

I just started using my new hour meter/tachometer today on my blower, and it peaked out at only 3180rpm, but steadily displayed 3120rpm.  It is this one:

http://www.amazon.com/Tachometer-Kawasaki-Motorcycle-Generator-Snowmobile/dp/B0049IFX56/ref=sr_1_cc_1?s=electronics&ie=UTF8&qid=1321768364&sr=1-1-catcorr 
         

Using that horsepower-to-torque formula (HP = torque x rpm, divided by 5252), I get 8.66 HP at 3120rpm.  At 3600, it would be 9.993 HP.  For the formula I used a torque figure of 14.58, which I got by plugging in the assumed Tecumseh 10.0 HP figure at the assumed rpm of 3600, into the torque-to-horsepower formula (HP x 5252, divided by 3600).  Lots of assumptions, I know, but I had to get the torque figure that way so I could turn around the formula to get my horsepower figure at 3120rpm.

Anyway, I don't know if this meter is accurate.  When my son and I get his Ariens ST824 put back together again (took it apart to paint the inside of the housing; adjust the chains; replace the friction disc, cracked handlebars, and beat-up/bent impeller; serrate the augers using a Platinum 30 cardboard template I made while at Home Depot; greasing the chains, auger shaft, and friction disc shaft), then I will try my tachometer on his machine.  I may just pick up another meter to compare in the end. 

If the reading is the same on his, or close, then maybe it is the meter.  If he gets around 3600rpm at full throttle, then maybe I need to adjust my governor.   If I do have to adjust it, does anyone know how to do that?  It's only a three-year old Tecumseh L-Head 358cc.  Thanks for any help.

aa335 wrote:

Thanks for your comforting words.  HS35 is not very easy to open up and perhaps I learned my lessons too. 

MN_Runner wrote:
Those HS35 are the BMW of SS snowblowers.  It is a complex model.  Just looking at the diagrams for the scraper bar and hardware to hold it in place, that's a lot of parts.  Other snowblowers are a lot simplier.

Last year when I worked on the HS621, I took pictures at various steps and keep all the fasteners organized.  It also helps to work on them in warm weather so you're not hurried to button them up for use to clear snow.

Changing the scrapper bar was no fun either and took too much time.  G150 is a nice engine which will outlast the body so you really have to take care of the body.  Hopefully I can keep my 928 in a good shape.

@aa335,

So to be clear, your HS621 is not for sale, right? http://chicago.craigslist.org/nwc/grd/2706687911.html

MN_Runner wrote:
Nope, mine is not for sale.  Too much time and money spent on it to let it go.

aa335: It does kind of look like your garage in the photo....

I did not think aa335 was selling his beloved HS621 and the pictures look so close.  The garage floor was painted in the ad and not sure if aa335 recently painted his concrete floor.

My garage floor is not painted.  I have plans to do epoxy paint the floor, but haven't find the time.  The pictures do look very similar to the ones I took.

A few weeks ago, there was a local CL ad for a HS621.  The seller used the exact picture of my snowblower!  Very misleading!  Gotta be careful of CL sometimes.  What you see is NOT what you get.

MN_Runner wrote:
I have some plans for putting in a GX200 engine with some performance mods that the karting guys do to it, with throttle control and remove the governor altogether.

I'm sure the chassis can handle it.  It's just a matter of time and money.

I read somewhere on the forum that aa335 painted his HS621.It looked brand new on the pictures, not faded like the ones on craigslist ad.