What Went Wrong? [Archive] - Snowmobile World : Your #1 Snowmobile Forum

: What Went Wrong?


fast426
01-28-2007, 07:09 PM
Well bad trip,

1996 T-cat with a 2000 motor/roller secondary. I just installed the engine. I couldn't remember what position the spacers behind the left rear motor mount went. I used my clutch alignment tool (which has distance notches also). I set the spacers till the two shafts seemed to be aligned the correct distance. I set the offset perfect with the secondary having about 1/16" slide motion on the shaft.

After a little riding and a really hard tow on the machine (I know this didin;t help the belt), It seemed to be sweaking a little when I would stop. I checked the belt and it seemed a little tight, so I too out one spacer (motot mount) and it seemed allot better.

I went out and was cheking my jetting. On my second WOT run (probably a little over 100mph or so) I heard meteal break and the sled stopped. At first I saw my belt shredded, a bunch of strands binding them almost like the belt separeated), but then I noticed the shieve on my primary closest to the motor was broken laying in the bellypan. Then I also noticed my shieve on my secondary (closest to the bearing) was bent.

So what happened? Did my belt go and cause this (maybee it weakend from the towing), did I heat my clutched up towing, or was it the alignemt thing?

How am I supposed to set the distance, with the spacers right? Whta is the spacing. What about perpendicular to each other, how do you check/adjust this?

ANy input here would be great, this was a $500 issue (belt and full clutch)

Thanks!

snow800
01-28-2007, 07:44 PM
Arctic cat 9 tower primary clutches SUCK.( the new 6 tower Cat clutch is an exact clone of the Polaris P- 85)
I run polaris p85 clutches on all my big triple motors.
You can not believe how much smoother and efficient they run.

They run the same taper, you just need to have someone set the belt spacing for the Cat belt.

You just need to get a 7 1/2 inch long 1/2 20 threaded bolt and ad 1 more shim behind the secondary on the jackshaft.

The harmonics suck on the Cat clutch, they are so far out of balance it isn't funny.
if you take something that is 6 grams out of balance and spin it 8600 rpm,
that 6 grams becomes over 80 pounds of rotating force, that's what blew your clutch up