Stock helix odd wear

RDJOHN

New Member
Messages
8
Age
56
Location
NW Indiana
Country
USA
Years Snowmobiling
Since 78 onn and off
Snowmobile
2015 Polaris Axys Switchback 800
2005 Polaris Fusion 900 50th 136"
And many others
I'm redoing my clutching using all the great info here.
I have found a questionable wear mark on the factory helix and want to make sure I fix the problem when my new one comes in (50/44 F)
There is wear a divot you can see and feel just past the ER notch. in first pic.
What could cause this? it is on the backshift side of the helix.
Do the bushing pictures look like it has been binding?
IMG_2350.JPG
IMG_2347.JPG
IMG_2348.JPG
 
Hard to tell from the first photo, but I'm thinking it was machined there because I can see machining marks in the trac.

The cover bushing looks normal to me.
 


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