13 Pro Check your jackshaft.

[rockinmranch]

I would strongly suggest that anyone owning a 13 pro with the belt drive to check the top sprocket of your belt drive for play. I now have gone through two jackshafts on one of my rental sleds. One at 2000 miles, the other at 3500. It is not the bearing failing but the material under the bearing. Please post if you are having the same problem. Now that this has happened twice, I am thinking there may be an engineering issue that may surface with higher mileage.

 

[LoudHandle]

As noted in other threads, If you are just replacing parts you are going to continue to have issues. The jack shaft and the bearing are both fine, the issue is how they all fit together. The bearing needs to seat against the jack shaft shoulder and likely the bearing plate for your QD is gapped out away from the bulkhead / tunnel and no matter the torque applied to the fastener it will not pull it in enough and even if you could, would side load the bearing enough to fail. You probably need to remove the bearing plate clean it and re-glue it tight to the bulkhead (my preference is to replace the two tunnel rivets with shortened chassis bolts, this will make more sense when you get it apart). Hope this is helpful, I put a more detailed write up in the upper sprocket heat thread.

 

[Big D rmk700]

Mine went bad at 750 miles took it in to get update with bolts and they called and said my jack shaft was geeting replaced!!

 

[rockinmranch]

As noted in other threads, If you are just replacing parts you are going to continue to have issues. The jack shaft and the bearing are both fine, the issue is how they all fit together. The bearing needs to seat against the jack shaft shoulder and likely the bearing plate for your QD is gapped out away from the bulkhead / tunnel and no matter the torque applied to the fastener it will not pull it in enough and even if you could, would side load the bearing enough to fail. You probably need to remove the bearing plate clean it and re-glue it tight to the bulkhead (my preference is to replace the two tunnel rivets with shortened chassis bolts, this will make more sense when you get it apart). Hope this is helpful, I put a more detailed write up in the upper sprocket heat thread.

I was involved with the replacement the first time, as near as I could tell all was fitting together fine. I don't believe Polaris is sending any instructions along with the jackshaft and bearing to resolve the problem. I will discuss your fix with the dealer and see if we can fix the problem. Thanks for the info.

 

[Scott]

Mine went bad at 750 miles took it in to get update with bolts and they called and said my jack shaft was geeting replaced!!

That's exactly what happened with mine.
It was FOUND at 680 miles, after some rattling (footwells started vibrating back in January. Those symptoms are gone now that the jackshaft was replaced) and clutch belt wear issues we discovered, it was believed to have happened clear back at about 300 miles in January.