The motor ID plate on my TO20 was a mess, so I took it off. I had to chisel the little rivets off to remove it, then I drilled the rivets out of their holes. Guess I drilled a little deep, 'cause I have an oil leak out of the bottom holes. Seems that the left side oil galley is right there, & I drilled into it. 
Easy fix, just tap the holes and install a #6-32 screw with Loctite on the threads to seal it.
The top holes aren't leaking, guess they don't go into any liquid.
BillL
Easy fix, just tap the holes and install a #6-32 screw with Loctite on the threads to seal it.
The top holes aren't leaking, guess they don't go into any liquid.
BillL
