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Preload on pinion bearing? (for snowmobile) 200

posted by  someone claiming to be Rhys on  Fri Jan 7 18:51 CST 2005 [RELATED]

The pinion is probably OK. If you can spin the pinion shaft slightly and feel the drag and it is just noticeable, all is well. If the shaft spins with a lot of drag (more than two fingers will overcome) then it is too tight.
The driveshafts have only two positions where they are phased correctly, not four at 90 degrees as many assume. The yoke at the front of the front shaft must be in phase with the yoke on the slip joint shaft on the rear assembly. It is the forging welded onto the shaft that you look at, not the one on the flange. Align the yoke on the splined shaft with it. If you study the rear shaft between its two u-j's you will see.
If that doesn't fix it then the shop that installed the u-j's bent either one of the shafts, or the yokes, while pressing or hammering in the new u-j's.





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