Are you running a hardened washer between the shaft bushing and the gear? Wear in the thrust surface will eat a gear faster than me eating an arbys sandwich.
If the elevation of the gear isn’t correct, the two gears don’t mesh correctly. I strongly believe that is your issue.
That’s an interesting point. One, i’ve never thought about before. I think in the future builds that i do, i will make a part of the engine buikd steps, the following: Use machinist dye on the gear, install in engine and rotate with distrib installed. Then inspect contact pattern to see if any adjustment is needed.
Good point!
