12 proclimb seconday rebuild

S

Sledbrain2

Free Member

Dec 7, 2007

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Elkhorn NE

• Feb 28, 2017

• #1

While changing the belt the helix jammed when I released the spring tension, then let loose or un-jammed (un-stuck) all of a sudden.

While riding would not shift back or stay partially open from time to time. My question is you can replace the bearing in the helix, I am wondering if that will take care of issue or should I just get the sheave bearing replaced as well. Thanks,

 

Phizzer

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Premium Member

Oct 23, 2008

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Ketchikan, AK

• Mar 1, 2017

• #2

I don't believe they have a part number for replacing the bushing on the secondary sheave. Racin Station would probably be able to point you in the right direction there. I would imagine if the bushing is damaged, a new sheave would be required.

 

Phizzer

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Oct 23, 2008

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Ketchikan, AK

• Mar 1, 2017

• #3

This should help.

 

Phizzer

Well-known member

Premium Member

Oct 23, 2008

1,219

422

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Ketchikan, AK

• Mar 1, 2017

• #4

Did you pull the clutch off and make sure one of the torx bolts didn't break? Could be the reason for the belt breaking and the binding while shifting.

 

S

Sledbrain2

Free Member

Dec 7, 2007

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Elkhorn NE

• Mar 1, 2017

• #5

The torx screws are all in, I had this happen to me back in the day on a 93 ext, back then you could replace all the bearings in the sheaves with parts. Cat does not list the sheave bearing/bushing. You can replace the helix bearing, I believe this would solve the issue but I am wondering to get both rebuilt instead of just buying the 50.00 bearing for the helix.