My Craftsman 12-Gallon 1 HP Model No. 921.166400 Compressor Won't get above 20 PSI in the tank

by Web Tileston
(Annandale VA)

Compressor is only about 1 1/2 years old. Has been used very seldom. Just use it to rotate tires every 7000 miles on four cars and to do some nail gun work. All of a sudden the pressure in the tank doesn't get above 20 PSI. We checked the head bolts and performed some leak checks with soapy water. Haven't found anything. Any suggetions? Thanks. Web







Bill says...

Hello Web. Compressors that won't build pressure seem to be in fashion these days.

Based on the trend I'm seeing, I'm guessing valves or internal gaskets have failed and air is leaking out the intake valve as fast as it's being compressed.

Did you see this page on on why compressors commonly don't build pressure?

Good luck.

Bill



Comments for My Craftsman 12-Gallon 1 HP Model No. 921.166400 Compressor Won't get above 20 PSI in the tank

Click here to add your own comments

Jul 06, 2011
Air coming from crank case.
by: Kevin from Charlotte NC

The air isn't coming back out of the intake but is blowing out of the crank case.

_____________________

That would suggest to me that you have piston seal issues.

Click here to add your own comments

Add your own question or comment. It's easy to do. How? Simply click here to return to Craftsman Compressor Issues.

919.165200 switching from 220 back to 110v

by Steve Vaughan
(Lexington Park, md, US)

Ihave a 919.165200 that i switched from 110v to 220 v using kit K-0191-1. It had the wiring diagram included to show you how to make the conversion. I would like to convert it back to 110 now to make it portable again but can't locate the instructions?

Click here to post comments

Add your own question or comment. It's easy to do. How? Simply click here to return to Craftsman Compressor Issues.