Originally Posted by JSS4
Both are 48 pitch. Even before the stock config the spur was ground down by the pinion before I installed anything.
Maybe I'll just get my LHS to fix the mesh for me.
Yea must be the mesh, I've had my Evader Bx set up with a Tekin Redline 8.5T motor for almost a year now and no problems with the pinion or spur. (Or any other driveline parts since the metal idler and CVD upgrade.)
You should have a tiny amount of play between the teeth when the gears are meshed together. An old trick is to put a piece of paper between the gears, shove them together, and tighten the motor screws. This should get your mesh about right.