Quote:
Originally Posted by squirrel
In the pictures of the failed plates, it looks like the shaft is not fully engaged with the plate. In addition to hardening the plate, it might be worthwhile to look into some type of mod to the shaft to get full engagement.
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I brought home one of the teams unused 56mm transmissions, and my sons and I did a kitchen table dissection. We discovered that the shaft does fully engage the plate under some conditions, but we also discovered that there is about 1/32" end play in the planetary geartrain stack. So, the end play seems to be a bit excessive, and allows the shaft to disengage about one quarter of the way from the plate.
Instead of a shaft modification, perhaps a select fit washer to control end play might help.