XT600 5th gear wear, a solution
Greetings jjrider,
Agreed, the shims have a function. Straight-cut gears have very little need for axial support, the small 2nd gear has a machined boss, no shim. The fact that it is a press fit is the difference. Engineering principles.
I have to consider another principle; the lesser of two evils :-)
I'm applying that to the larger gear, admit it can wobble around to an extent being free on its shaft, but is held up by the bearing next to it. Hard surface to hard surface in oil without side thrust is not a problem.
Reducing the pressure between mating surfaces by increasing contact area works for me. Also, when you have held most of the gears Yamaha have tried, different materials and surfaces, you may think differently.
Thank you for your comments and yes, time will tell.
p
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