Motor keeps loosening up on motor mount....
 

Having an issue w/the motor moving on motor mount. The screws are as tight as I can get them and the motor still slides away from spur. The screws are the correct length. This happened to me today several times...I would re-tighten and then 10mins. later it would back off again..by the 4th time happening, I had to walk away for a minute or else there would have been a crt.5 in pieces.

Are you guys using any lock washers of any kind.

I think I threw a set of star washers or lock washers on mine, I haven't had any problems!

I should do the same..thanks!

Lock washers work wonders. I use them too.