takes lomg time to build pressure
Older Craftsman 3.5Hp 15 gallon model 919.153531 Flow valve leaks air and I replaced with a plug. This just takes pressure off cylinder for start up I assume. The unit builds full pressure to 120psi but takes alot longer. I'm guessing time for a cylinder and piston ring redo?? But looking at Sears web site parts are not available. Any options?
If by flow valve you mean unloader valve, check out the check valve page linked from VALVES. That is likely why your unloader valve leaks. Plugging it isn't the solution, as you are creating an overload on start up that isn't good for the compressor, or the supply circuit.
How is the intake? Is it pulling air in when it's running? You may have a valve issue, or you may have a gasket leak internally, and I would address these to make sure they weren't the cause before embarking on new rings or repairing a possibly damaged cylinder.
Your repair cost needs to be weighed against the cost of a new compressor. If Sears can't help, then check the REPAIRS page for a build it shop near you, or ask your local stores where they get their compressors repaired under warranty, and see these folks.
have a 33 gallon 220 volt craftsman dry compressor takes 25 minutes to build up what is the normal tme for it to build to 125 psi?
33 gallon 220 volt compressor takes 25 minutes to build up to 125 what is the normal time for this compressor
Rich, I have never put a stop watch on a Craftsman air compressor as it builds pressure, yet I would think that at most, from 0 PSI in the air tank, maybe 2-3 minutes if there were no leaks?
So, take a look at the TROUBLESHOOTING page for the link "compressor will not build pressure" and have a look at those pages for some tips.
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