Originally Posted by
losi_racer
Is there a way to 100 percent know if the bearing is good, I mean I'm turning it with my finger and it feels smooth
usually you feel it catch in the housing ...it will hit a spot and just hesitate ....also check one other thing related to the bearing make sure there are no small burrs on the inner bearing race and at the part of the crank shaft where the bearing rides ...i have also seen burrs on the crank cause the same problems ..but i mean yeh if it spins good no catches or hesitations ..you can usually tell right off the bat