Porter Cable C2002 150 Psi 6 Gal Compressor Logo
Posted on Nov 06, 2017
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Unlocated substantial air leak. It is not a hole in the tank, but possible line from compressor to tank, or from tank to hose. Female hose connection on compressor is not the problem, it is somewhere inside the black plastic cover. Is there a typical pressure failure spot on this product? Thank you very much for your help. Keith

1 Answer

Bill Boyd

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  • Porter Cable Master 53,816 Answers
  • Posted on Nov 06, 2017
Bill Boyd
Porter Cable Master
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Joined: Jan 04, 2013
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The reed valves/ poppet valves have failed in the cylinder head /s allowing the air to continually pass from in and out with each stroke

5 Related Answers

Anonymous

  • 52 Answers
  • Posted on Jan 14, 2009

SOURCE: wont pressure up

Most likely your portercable piston ring/seal broke. Its not hard to fix if you are mechanically inclined. See portercable site for rebuild kit.

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Anonymous

  • 59 Answers
  • Posted on Feb 11, 2009

SOURCE: wont pressure up

Check drain plug on bottom of tank, check hose connections on top of tank.

Lugnut61

Anonymous

  • 1167 Answers
  • Posted on Sep 20, 2009

SOURCE: Leaking sound coming from top

hi buddy the pipe that comes from the pump to the tank connects to a non return valve (pic below) on the tank unscrew the end of this and turn the rubber around inside and try this get back to me if no difference 9d71ea5.jpg

roniecon

Ronny Bennett Sr.

  • 6988 Answers
  • Posted on Nov 06, 2009

SOURCE: no air pressure thru quick connect to tools-bag regulator?

I dont know if it is like mine,but if you can let the air out of it and remove the regulator knob,and it`s components,you may can set it to just to be open all the time,in other words,by pass the control knob valve.Shout back at me if I can help.

Anonymous

  • 77 Answers
  • Posted on Jan 12, 2011

SOURCE: I have a pancake compressor that won't hold air

If you replaced the head gasket then its probably the valve plate and gasket.

See here:
http://www.chasdayco.com/mm5/breaks/PorterCable/20041110144417_A08610-E.pdf

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0helpful
1answer

Wont build up air.What could be the problem

leaking pressure hose from cilinder to tank leak pressure switch a dirty check valve on the tank open it and look for a smooth clean rubber valve that can free move and no metal pieces in it if that is there found then a part in the hose line or membrane plates are broken , if you have a dry(oilless) compressor the piston ring and cylinder may be worn.
Several possibilitys depends on models The pressure reducing valve can also be faulty leaking drain at the bottom of the tank leaking the safety valve must be good closed and also the little pressure release unit the small black hose oft in many models in the pressure switch must be closed by start there can also some dirt comes in. .that it will not close and then its continu blow of normal you can hear that it closed by starting and always release the pressure air for the next start .
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My 20 gallon campbell hausfeld wont hold air.what could be the problem

Joe:

There is an air leak somewhere in either the tank connections or the hose connections. Look at the tank and find the tube that runs from the top of the compressor to the tank (usually a brass line). grab a spray bottle and fill it with a soapy solution (dish washing soap and water is fine). Disconnect the rubber air hose from the tank (at the quick disconnect) and start the compressor. Spray the dishwashing solution on the brass line end fittings at the compressor head and the tank connection, and the quick disconnect fitting and where the quick disconnect connects to the air tank. If you see bubbles being blown, that is where your leak is. Also connect the hose to the tank and check your hose for leaks with the soapy solution. Once you find where the leak is, you can tighten the fitting or replace the faulty gasket or hose.
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Air leaking from holes in oil filler plug

There's a check valve in the air line between the compressor and tank that sounds like it's failed.
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Compressor pumps up fine but then leaks air just below the relief valve. out of a small factory hole in a brass fittting and goe down till compressor starts again.

When the unloader leaks as you describe indicates that the check valve is leaking. Easy to check the condition of the valve. Follow air discharge line from compressor head to tank. The brass or steel fitting that threads into tank is the checkvalve. Remove all air from tank and remove large inspection cap to reveal the teflon seat. If it is cracked or swollen you will need to replace the valve. Parts available at www.toolpartsdirect.com Good luck
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1answer

Air leaks out of the small hole in the middle of the head while the compressor is running and continues after it is shut off until the tank is empty.

This is probably the check valve in the tank not seating.
If you follow the main line from the compressor to the tank the check valve is at the end of this hose.
This is reference # 11 on your parts diagram.
1helpful
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I have a Central Pneumatic, 21 Gallon, 3HP air compressor. The compressor is exiting air through exthaust port.

If air leaks when motor is off, fault most likely in-tank check valve. Follow discharge air line from pump to tank. Brass/steel valve at tank is the check valve. Remove hose to valve and check for leak. Replace as needed. If air is leaking while motor is running fault could be reed valves in head. Faulty reed valves in head, or torn head gaskets will cause very hot discharge air and tank will most likely never fill to shut off (or take a very long time to fill)
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Air is leaking from the small air line under the power relay. the valve in the small is melted.how to repair.how to find parts? /

Air continually leaking from power switch/ unloader indicates that in-tank check valve is not holding pressure. Easy to check, follow discharge hose from pump to tank. Brass valve at thank is the check valve. With air in tank and unit unpluged from outlet, remove hose from valve and check for leak, replace as needed. Parts are available at www.chpower.com Good Luck with your repair.
1helpful
3answers

I can not change tools without letting all the air out of the compressor. Reason is I have a hook on my left hand. If I had a shut off value on the out let I wouldn't have to empty the air each time I...

i think quick connects will work for you, as long as you are talking nail guns or impact guns etc..

you can hold the tools between you legs and use your good hand to work the fitting

That is how i did it when i cut my finger off

good luck
0helpful
1answer

My compressor keeps turning on

the compressor is triggered to come on at a minimum pressure determined by the 'regulator'.leaking air you hear is the cause check petcock @ bottom of tank.check air hose inlet connection,air compressor to tank lines.
4helpful
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3gal. aircompressor - craftsman model #921153101

This problem is not uncommon with small compressors and the inexpensive plastic regulators they use nowadays. The one surefire way to stop it is ti install in in-line valve before the regulator outlet, even if it involves the double ended & threaded brass soupler so they both fit on. This way you can just turn the handles across the line effectively shutting off air flow. I have two pancake compressors and ended up doing the very thing.

Then when time comes to hook up a hose and tool, just switch the handle back and you have air.

Sirwriter
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