TC3 (Rally) dirt is stripping drive gears
Somehow very fine dirt is getting into the transmission case. It's extremely fine dirt almost dust like and it cakes up between the teeth making it so they don't mesh well and strip.
It is sealed tight so I think the dirt is being sucked in either through the outdrive holes or the drive shaft hole behind the spur gear (I think this is most likely since its kinda loose).
There is also a hole in the top of the case that I plugged with a screw, should I have or is it there for a reason? did plugging this hole has create a vacuum?
Thanks for any help/suggestions.