Question about Stanley Bostitch N80s Nailer -rebuild Parts O`ring & Seal Kit

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Bostich N80 Framing nailer

Leaks from holes in the back and won't shoot.

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  • David Ford
    David Ford May 11, 2010

    What holes in the back. Did you rebuild this tool. Let me know and I can help



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Sorry about the delayed response. This unit needs to have the O-rings replaced. The return of the firing pin is not happening correctly. This means that the pressure release holes are still engaged. When the pin pushes out the nail, the return should cause the holes to get covered. If there is an air leak, the return will not complete resulting in an even larger air leak which is what you are now seeing. This is a relatively simple repair for any shop that handles these and would be considered a standard maintenance effort. These are decent tools and with proper maintenance will last for years. Mine is over 22years old and going string.


Posted on Feb 11, 2009


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