Quote:
Originally Posted by Trev140_0
When you test your shim job do you assemble the gear box with screws and try and spin all 3 gears at once?
They should have zero drag if done right.
Second is how much "float" did you leave the bevel gear for play.
You get both of these wrong you WILL heat the motor and the lipo.
I have done exactly this a couple years ago. Often people test the shim without fully tightening the GB. They will close and hold with hands. Not good enough.
The Bevel is the same. If the bevel is in an absolute fixed position, meaning no ability to float, it will not be able to find its home with the motor.
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Yes I close and tighten the shell and test each gear individually and then all three together, I'm pretty methodical with shimming. When I spin all three there is definitely no drag, but it doesn't take off for twenty rotations either. The only thing I feel is the weight of all three gears spinning if you know what I mean, sort of like there is momentum behind the spin. If I get them going pretty good by spinning with my finger they keep going for probably 10 plus rotations. Maybe it's worth mentioning that I'm using metal bushings and not bearing bushings. With the bevel there is very little play, but it does move slightly. Which is correct as far as I know.
So once my new motor gets here I think il re shim again ( from the bevel just to be sure) and pop the motor in. I'm pretty confident in the shim job and I'm thinking the motor is the problem.