Originally Posted by
Dredd
My guess is chassis flex on jumps and it bangs into the servo housing. There's ways to help with this such as shimming it a bit so it sits higher.
also On the EPA. The chassis flexes a lot, and if you set the high speed epa to go all the way until the carb opens completely it could theoretically harm the servo. Limit the throttle throw to have about 2mm play in it with the trigger pulled all the way. Check this by pulling the trigger all the way, and then grabbing the throttle rod and pulling it. It should pull out farther than the epa is set....
Also. If you adjust the brake pads a bit closer you can reduce the brake throw a bit so the servo doesn't have to work so hard to stop the car....
I hope this helps......