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Question about Porter Cable 18 - Gauge Brad Nailer and Compressor Combo Kit

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Leaking sound coming from top

My Porter Cable 150 PSI air compressor is making a "hissing" noise. It had a problem of not starting but that has been cleared. If I fill the tank with any amount of air and turn the compressor off, it makes this hissing noise until all the air is out of the tank. I noticed a small pin-hole in the hose that goes from the tank to the compressor (This is not where the hissing is coming from). I've tried the tapping on brass valve with no success. Aside from replacing the hose, is there anything else you think needs replacing?

Thanks,

Jason

Posted by jason_c_belb on

  • jason_c_belb Sep 20, 2009

    I don't see this non-return valve anywhere on the unit. The only connections to the tank are the check valve and the manifold assembly. I'm looking at a site that shows me all the parts to this unit http://www.ereplacementparts.com/porter-... Let me know if you have any other ideas. Thanks!

  • jason_c_belb Sep 20, 2009

    I don't see this non-return valve. I'm not sure if this is on a different model. Mine only has the check-valve and the manifold stuff. Any other ideas?

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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 Leaking sound coming from top - 9d71ea5.jpg

Posted on Sep 20, 2009

  • 2 more comments 
  • Anonymous Sep 21, 2009

    buddy i think i can see it in the picture next to the pressure switch

  • Anonymous Sep 21, 2009

    it may be behind the cover inside the cover

  • Anonymous Sep 21, 2009

    hang on a mo buddy a check valve is a non return valve lol

  • Anonymous Sep 21, 2009

    hang on a mo buddy a check valve is a non return valve lol

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