Weak output

[J.R. Spletstoser]

The compressor has very low output, I'm thinking that it's the valve plate. When it was working it got weaker and weaker.
Could the cylinder and ring be involved?

[Mark]

If the compressor builds pressure normally and shuts off then I would suspect that the regulator may be clogged. Sometimes one of the o-rings will fall apart and clog the passages in the regulator.

If the compressor never builds enough pressure to turn off or if it builds very slowly then it likely has a worn out piston and cylinder. The piston and cylinder are offered as a kit. The kit is part #K-0650 and is available from http://ereplacementparts.com.

I hope this helps with your repair!

-Mark