Question about Craftsman 3 gal. Air Compressor, 1.5 hp, Horizontal k

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WILL NOT BUILD PRESSURE

STARTED COMPRESSOR UP...PRESSURE BUILT TO AROUND 70PSI, THEN COMPRESSOR SOUND CHANGE AND PRESSURE WOULD BUILD NO MORE PRESSURE. ONCE THE PRESSURE WAS RELEASED NO MORE PRESSURE WOULD BUILD. AIR SEEMS TO BE RELEASED THROUGH THE BREATHER.

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  • hw9664 Dec 09, 2008

    I have the exact same problem only my pressure builds to 60PSI and then stops. There is also air coming from the crankcase breather. Did you get your compressor fixed? What it the cylinder and rings or the reed valve?

  • Anonymous Mar 19, 2014

    pancake compressor knocks as it builds up pressure

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  • Craftsman Master
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Many craftsman compressor are built by champbell hausfeld using a dry type of cylinder and piston (no oil, no crankcase). If dry type, check for worn cylinder and piston ring. Pieces of the vinyl ring can jamb between the reed valves in the head causing air to escape from the intake. If your compressor has a crankcase and oil, check for broken reed valves in head. Spray soap solution on hoses, checkvalve, drainvalve, and fittings to check for leaks. Most likely problem is reed valves broken or open. Parts are available from sears or match parts to chpower.com. enjoy

Posted on Nov 27, 2008

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Posted on Jan 02, 2017

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