I think this is part of our belt and clutch issues

skank · Mar 13, 2017

On many of our 850's there is a ridge on the inside of the fixed clutch half where the two different metals meet. This ridge is wearing into the side of the belt. Only on the engine side of belt. Creates two different angles on that side of belt and only half the belt contacts the clutch once it starts shifting out. This has got to be causing some quicker belt wear, slippage, and clutch heat. The first pic shows the ridge in clutch. The second picture shows my belt removed and the shape of the ridge worn into the inside of belt. About 300 miles on belt.

cheater35 · Mar 13, 2017

750 miles on my 165x2.5" and absolutely no belt issues what so ever. Hand warmers are hot, no broken bulkhead yet. It is a treat to ride. The more I ride it the more I like it. Effortless to ride. Jmo.?

mountainhorse · Mar 13, 2017

How often does the belt ride down there when the sled is moving??

.

rulonjj · Mar 13, 2017

mountainhorse said:
How often does the belt ride down there when the sled is moving??

.

Never

skank · Mar 13, 2017

Yes the belt never rides there when the sled is moving but it still rides there when you chop the throttle or idling and it wears the center of belt thinner during this time. It obviosly rides there enough that it has
changed the shape of the side of the belt on one side.
Then when belt engages and rides up the fixed half of clutch, only the outside of belt is making contact with the fixed half, instead of the whole width of belt.
I have never had a belt wear in this odd way on any of my prior sleds. The movable half is making full contact on side of belt. The fixed half is only making contact with 2/3's of the side of belt.

b-litt · Mar 13, 2017

cheater35 said:
750 miles on my 165x2.5" and absolutely no belt issues what so ever. Hand warmers are hot, no broken bulkhead yet. It is a treat to ride. The more I ride it the more I like it. Effortless to ride. Jmo.?

Just wait and don't speak too soon. You may regret it. I had no issues either and only one blown belt. Now at 1,500 miles I've been down for three weeks. One issue gets fixed then it's something else. It was fried wiring harnesses, then a bad injector, and now something else electrical. Awesome sled when you can ride it, but the winter is too short for all this down time.

I'll have to look at my belts to see if they have the same wear issue. Lots of theories out there.

rulonjj · Mar 13, 2017

b-litt said:
Just wait and don't speak too soon. You may regret it. I had no issues either and only one blown belt. Now at 1,500 miles I've been down for three weeks. One issue gets fixed then it's something else. It was fried wiring harnesses, then a bad injector, and now something else electrical. Awesome sled when you can ride it, but the winter is too short for all this down time.

I'll have to look at my belts to see if they have the same wear issue. Lots of theories out there.

I've seen a few pictures of clutches they looked like they weren't pressed together right. The steel part was out 1/8" or so past the sheeve. It would definitely rub the belt wrong every time you started out or idled. Sucks that you're having down time. It is damn frustrating.

skank · Mar 13, 2017

rulonjj said:
I've seen a few pictures of clutches they looked like they weren't pressed together right. The steel part was out 1/8" or so past the sheeve. It would definitely rub the belt wrong every time you started out or idled. Sucks that you're having down time. It is damn frustrating.

Fortunately I haven't had any down time yet and haven't blown apart any belts yet. But still having some heat and belt wear issues. In 620 miles I have worn two belts to the point I run out of deflection adjustment and performance starts to drop.

I think this is part of our belt and clutch issues

skank

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cheater35

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mountainhorse

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rulonjj

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skank

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b-litt

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rulonjj

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skank

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