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-   -   Craftsman 3 gallon 1HP air compressor model #921.153101 (http://www.diychatroom.com/f47/craftsman-3-gallon-1hp-air-compressor-model-921-153101-a-72986/)

PSD 06-06-2010 12:51 PM

Craftsman 3 gallon 1HP air compressor model #921.153101
 
Compressor was working fine & then pressure dropped, will only built 15lbs maximum now. No leaks or open valves .

david cash 02-13-2011 10:51 AM

I just got thru working on my Craftsman 1hp and found a blown head gasket. Imade a new set of gaskets and glued them in with a shellac based gasket cement. After removing the head, there are 2 plates that hold the valve reeds,note the groves that hold them in,make sure they go back the same way. It was the top head gasket that went-there is a wall in the head that seperates the incoming air from the compressed air that needs to be sealed off by the gasket.Try this-it worked on mine:)


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