Here's what we did on our 512 roller.
1/8 " round steel reinforcement welded to stock cover.

Inexpensive and effective, used a roller button inside.
Slight interference fit to back of AL. pump housing, works great to eliminate flex.

Joe

PS, If needed, you can sand a few thousands from the back of the pump housing
to get exactly the interference you desire.

timing cover.jpg
Last edited by jlatessa; 05/09/21 08:48 AM.