How to replace Counter weight/bearing assembly Craftsman 30 Gal Non oil #919.165050

by Brett
(Stanwood,Wa)

Counter weight/bearing assembly broke at Rod. Got new counter weight/bearing assembly. Rod is in good condition.
HOW TO REPLACE? Do I need to remove piston? Do I need a press to get bearing out of rod? There is a torx screw on bottom of rod, below a gap in the casting. But above the gap looks solid where bearing is at.

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How to replace Counter weight/bearing assembly Craftsman 30 Gal Non oil #919.165050

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Jul 22, 2011
 919.165050 Counterwieght/bearing Caution
by: Matt, Va.

Brett-
I have a 919.154330 that may be similar to yours. Glad to hear it's working fine but you may want to check something closely. There is a small set screw that holds the counterweight/bearing onto the motor shaft. It only sits on a flat spot on the shaft. After 20 yrs of use, mine got loose and scored the shaft! I was able to save it but was really vexed that such a tiny part nearly trashed my compressor. A fresh case hardened screw(black)and some locktite #721 is a great preventive insurance tactic.
_Matt Va.
Jul 09, 2010
 Fixed
by: Brett

Had a mechanic friend help me out replacing bearing assembly. Bearing/counterweight slides off easily when small torx screw is removed from bottom of rod. Piston can stay in head or be slid out and put back in with ease. Works like new.

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