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MadMax · July 30th, 2007, 12:46

It is possible to remove a pinion gear with a steel vise. Grip the bad pinion firmly and punch the motor shaft out with a 3/32 punch.

The new pinion can be pressed on by clamping the the motor and new pinion lengthwise to push it onto the shaft. It is VERY important that you do not load the motor bushings in this direction so put a 1/8" ball into the end bell (other end where the brushes are) so when you press the whole thing, only the pinion and armature shaft are loaded. Also put a firm pad (plastic or even stacked paper) on the face of the pinion so you don't mar it with a textured steel vise jaw.

July 30th, 2007, 12:46	#4
MadMax Delierious Designer of Dastardly Detonations Trader rating Join Date: Dec 2001 Location: in the dark recesses of some metal chip filled machine shop	It is possible to remove a pinion gear with a steel vise. Grip the bad pinion firmly and punch the motor shaft out with a 3/32 punch. The new pinion can be pressed on by clamping the the motor and new pinion lengthwise to push it onto the shaft. It is VERY important that you do not load the motor bushings in this direction so put a 1/8" ball into the end bell (other end where the brushes are) so when you press the whole thing, only the pinion and armature shaft are loaded. Also put a firm pad (plastic or even stacked paper) on the face of the pinion so you don't mar it with a textured steel vise jaw. __________________ Want nearly free GBB gas?