Arctic Chat

f7head · 02-13-2011, 01:31 AM

going on a big trip tommorow..and keep blowing belts, need to get this figured out! i did a search on free floating the secondary, and completly lost now! do you set it up so it ALWAYS freefloats? or do you set it up so it ONLY free floats for the time your testing, and then you shim it out and make it fixed again? i havent measured how far out i am, but im going to go and do that now..i checked my center to center, and im dead on 12 1/16.. just scuffed up the clutchs and put 4 shims(2 small and 2 big) to get the right delfection for my 021 belt... anything else i need to figured out before i go on this trip tommorow? i dont need to blow another belt...already been two this week please post some pictures showing the floating, and measure the right distance between the stationary sheive and the motor plate...i searched a post from 07, and the pics werent showing up anymore..

please help guys!

Flyntigre · 02-13-2011, 03:37 AM

First check motor mounts to see if any are cracked and allowing engine movement, If motor is moving under torque this wll cause greif. Free floating the secondary may work but best to use an alignment tool to make sure things are dead on. Has machine taken a hit? Possible something is out of line. 021 belt is the cheap one, I would go with 046 due to torque. Is there any wear on the primary clutch, is it opening up smooth and all the way? The driven (rear) clutch is one tight son of bitch almost needs a second person to assemble, maybe its too loose - not assembled correctly. Look for any worn or broken parts.

68ragtop · 02-13-2011, 07:19 AM

I would agree with Flytigre, Without the allignment tool your not goin be able to measure very acuratly. The two big belt wreckers are the secondary allingment & clutch paralellism. The rear float should be only .060", & that is taken up by the o-rings. Still called float, but you wouldn't be able to slide the clutch on the shaft when its installed correctly.

If your in a pinch, you might be able put the back on a stand, have somebody rev the sled & watch the shift to see if the belt appears to stay straight. Crude, but might be effect without the proper tool. If you are puking belts often, I am thinking you might be able to see the problem?

I think the only belts that will fit correctly are the 020, 021, 031, 035

2005f7ext144 · 02-13-2011, 08:29 AM

sounds like busted jackshaft bearing or broken motor mount as most likely problem, My 2c

but it could be a bent upper left frame rail. when that happens most likely your whole front chasis is bent. mines bent but my clutches meet spec on distance and alignment tool. and i throw belts every 400-700 miles just want to finish out winter without buying another.

Mike R · 02-22-2011, 06:39 PM

I never use a alignment tool on my sleds. I loosen the bolt that holds the driven on and run it on a jackstand slow. It will line itself up and you can shim where necessary. When the 440's first came out they did not have a offset spec and cat told them at race school to do it this way.