Primary Fixed Sheave Keeps Breaking! HELP!!!!!!! - Yamaha Rhino Forum - Rhino Forums.net
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post #1 of 13 (permalink) Old 01-17-2010, 04:23 PM Thread Starter
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Primary Fixed Sheave Keeps Breaking! HELP!!!!!!!

On my 05 660 Rhino, I have had to replace my Primary Fixed Sleave twice in the matter of 60 miles on the unit. Some how the "teeth" on it get chewed up from the clutch housing it slips on. Now when I replace the Fixed Sleave I went ahead and replaced everything on the clutch etc. Secondly, I noticed on the UTVCrap clutch installation video they show putting a washer between the Primary Fixed Sleave and the Collar. However, I can't find this washer anywhere in the service manuel. And, it didn't have this washer on it when I pulled it apart the first time. I'm lost........ What could be going wrong?

Last edited by mulleyman; 01-17-2010 at 04:45 PM.
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post #2 of 13 (permalink) Old 01-17-2010, 04:33 PM
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Originally Posted by mulleyman View Post
On my 05 660 Rhino, I have had to replace my Primary Fixed Sleave twice in the matter of 60 miles on the unit. Some how the "teeth" on it get chewed up from the clutch housing it slips on. Now when I replace the Fixed Sleave I went ahead and replaced everything on the clutch etc. Secondly, I noticed on the UTVCrap clutch installation video they show putting a washer between the Primary Fixed Sleave and the Collar. However, I can't find this washer anywhere in the service manuel. And, it didn't have this washer on it when I pulled it apart the first time. I'm lost........
The washer is for the machined sheeve....Im not sure if its to help out on the top end or the bottom end but its not an OEM piece.
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post #3 of 13 (permalink) Old 01-17-2010, 05:11 PM
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the washer goes on the out side just behind the nut it is on the parts break down
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post #4 of 13 (permalink) Old 01-18-2010, 06:29 AM
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The very thin washer that we provide with our 660 machined sheave (not the 450 or 700) goes on before the sliding sheave assembly. It can be installed before or after the machined collar that the sheave rides on as long as it is under the cam plate you are fine.

The reason why you may be destroying the inner halves is because you may not have the outer sheave half on the splines. You need to make sure you see the splines protruding from the cam plate BEFORE installing the washer and nut. The best way to ensure it stays on the splines is to install the washer and nut by hand and finger tighten it before snuggin it up with an impact or torque wrench.



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post #5 of 13 (permalink) Old 01-18-2010, 03:15 PM Thread Starter
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so what would happen if one didn't use your thin washer on install?
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post #6 of 13 (permalink) Old 01-18-2010, 03:16 PM
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Nothing, all it does is start the belt a hair lower in the sheave



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post #7 of 13 (permalink) Old 01-21-2010, 10:17 PM
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I am having the same problem. I have went through two new fixed sheaves and 2 belts on an 07 rhino.
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post #8 of 13 (permalink) Old 01-26-2010, 07:39 PM
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Bump...has anyone found a solution to this problem?
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post #9 of 13 (permalink) Old 01-26-2010, 09:23 PM
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Bump...has anyone found a solution to this problem?
Don't take this the wrong way, but, the installation is the problem. The cam plate may not be fully engaged on the wet clutch shaft splines before the nut is tightened. Or, the washer behind the nut on the primary clutch assy is not centered before the nut is tightened. Attention to detail during install will prevent this problem.

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post #10 of 13 (permalink) Old 01-26-2010, 10:54 PM
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X2... done it fixed it!



Quote:
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Quote:
Originally Posted by sjtalbot View Post
Bump...has anyone found a solution to this problem?
Don't take this the wrong way, but, the installation is the problem. The cam plate may not be fully engaged on the wet clutch shaft splines before the nut is tightened. Or, the washer behind the nut on the primary clutch assy is not centered before the nut is tightened. Attention to detail during install will prevent this problem.
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post #11 of 13 (permalink) Old 01-27-2010, 08:38 PM
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Quote:
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Quote:
Originally Posted by sjtalbot View Post
Bump...has anyone found a solution to this problem?
Don't take this the wrong way, but, the installation is the problem. The cam plate may not be fully engaged on the wet clutch shaft splines before the nut is tightened. Or, the washer behind the nut on the primary clutch assy is not centered before the nut is tightened. Attention to detail during install will prevent this problem.
Thanks for your help today s2k1. I am going to do what you said as soon as I get new parts. Thanks again for the info Chris.
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post #12 of 13 (permalink) Old 01-28-2010, 06:19 PM
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if u have a cvt filter that is dirty exesive heat will cause this too, nut can back off and the stationary sheave becomes loose. (secondairy probleum)
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post #13 of 13 (permalink) Old 07-30-2019, 03:11 PM
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i am having the same issue and need to know did this fix the issue?

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