Black Bull 4 gal 2 hp that runs but does not pump air

by john gross
(breckenridge, texas)

the compressor runs, appears to be working but does not pump air and pressure up. Opened it up and piston and everything is intact.

Comments for Black Bull 4 gal 2 hp that runs but does not pump air

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Aug 19, 2017
Is this at least similar to what you have -
by: Doug in s.d.ca.

http://bid.mclemoreauction.com/cgi-bin/mnlist.cgi?mclemore127/904

?

Aug 19, 2017
Black Bull not building pressure
by: Bill

Does it build any pressure?

Is the tank drain closed?

Good that you opened it up and all is intact. Did you, perhaps, replace the gaskets?

Please pop over to the troubleshooting page and scroll down to the link about why compressors run but don't build pressure.

Let us know what you found on your compressor as a comment, please.

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