Question about Craftsman 3 gal. Air Compressor, 1.5 hp, Horizontal k
My craftsman air compressor builds up to 35 psi and with pump still running,wont pressure up no further.Could it be a bad pressure switch,or bad head gasket or something else??And how do I troubleshoot to find the exact problem??
If this compressor is dry type with no oil needed, then it may have a worn cylinder and/or piston ring. With flashlight in hand, look under cylinder with piston in upper most position. If you see scratches most likely it needs cylinder / piston kit. Not to worry, not too expensive. If you compressor has a crankcase with oil, then you may have problems with valves in the head. Cracked or dirt under headvalves will prevent pressure from building. Finally there may be one or several leaks in the tubing, check leaks with soapy water. enjoy
Posted on Nov 29, 2008
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Posted on Jan 02, 2017
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