As I earlier mentioned in a different post, my Sears 25 Gal. upright compressor wouldn't build air. I finally decided the old piston was worn and bought a replacement.
Got the new part yesterday and put it in. From all appearances an exact replica. The old one was so worn you could see daylight around the edges. The problem is the new one is quite stiff in the sleeve and the motor isn't able to kick it over for a full revolution and kicks the breaker. It's an airless compressor but is there some lubricant I could shoot on the cylinder to decrease the resistance? If I can get the motor to just start it I'll leave things open and break it in for 20 minutes.
Last edited by 641Workmaster; 02/09/2014 7:04 PM.
