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I have a bumper (top huge o-ring) that is boken. can I just replace that with a bumper kit and fix this N80 framing nailer?

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That should work just fine. Use the diagrams available at the link below as a guide. Enter the model number and you will be sent to a page with the parts breakdown as well as part numbers and costs.



Posted on Sep 27, 2010


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    [PDF]How to Repair you Nailer - Master Tool Repair
    Air leak through the top head exhaust port. • Nothing ... head valve or the seal located on the top of the cylinder (the part the driver ... Look to see if the piston top of the driver is aligned in the ... Solution: Remove and replace trigger valve (if.Missing: question

    Rebuild a Framing Nailer ' The Family Handyman
    Keep your framing nailer in top working condition and save time and money with a ...O-rings that cause air leaks, a trigger valve that won't fire, or a leaking cylinder seal ...then replace the rings one at a time, matching each one to its replacement. Install the new bumpers, piston seals and piston stops and reinstall the cap.

    FASCO - Frequently Asked Questions - fasco tool finder
    Search Tools by Application ... My Fasco pneumatic nailer/stapler leaks air from the

Feb 09, 2016 | Air Tools & Compressors

1 Answer

How do i rebuild my bostitch n80 frameing nailer

Bostitch nailers are simple to rebuild. Bostitch company was sold to Dewalt so parts are now easier to obtain from local Dewalt service center. Use Ork11 oring kit and tva6 trigger valve. These parts are also available on ebay. Good luck or your nailing projects.

Sep 18, 2014 | Stanley Bostitch N80CB Coil Framing Nailer

1 Answer

I have N80 coil nailer not exact sure on what exact nail gun it is considered but it is leaking air out exhaust ports as soon as you hook air up to it and cylinder moves slow into the drive position like...

you are correct, also you want to look at the cylinder ring and also the bumpers. These tools are not that hard to rebuild. Make sure that you light grease all the o-rings before reassembly. If the bumpers (under the cylinder) are destroyed you would also need to remove any small fragments from the air tube that goes to the feed piston. Let me know if you need more assistance.

Oct 28, 2011 | Stanley Bostitch Nail Gun

1 Answer

I have a bostitch model nc65 coil nailer. It is having problems returning the piston to the top position and I believe that a reed valve or seal is missing from above the head valve. I can't find any...

Can you verify the model number please? I only see references to N64 or N66 for coil nailers.

Specific to the problem listed, this is usually caused by an air leak through the O-rings. I would replace the O-rings and make sure that the entire area is well lubricated with pneumatic gun oil and try again. This should resolve the problem.


Oct 28, 2010 | Stanley Ring Repair Kit KTBO650 for...

1 Answer

Have framing gun with split neoprene seal( TVA-11 Valve). What is the scam that we have to buy a thirty dollar valve kit as opposed to a thirty cent o-ring. This seems to be a scam. Bostich N80 SB

If the o-ring is the problem, you can get the o-rings separately. I believe that the o-ring kit runs about $12 and contains all of the rings. If hte problem is internal to the trigger assembly, the entire assembly should be replaced. I have replaced the o-rings twice and the trigger once in my N80 in 24 years of service .


Jun 13, 2010 | Stanley Air Tools & Compressors

1 Answer

My Bostitch N80 fires full auto when I hook it

I would check the safety first to make sure not stuck because this tool is a bump fire. Let me know and then I will find a kit and schematic for you or you can go to and find the parts online, but I honestly think that you have a safety issue or the trigger valve is malfunctioning.

Jan 09, 2010 | Stanley Bostitch N80s Nailer -rebuild...

2 Answers

Need Parts for Central Pneumatic Air Framing Nailer D1CN28/90

I have a Central Pneumatic Frame Nailer the driver will go down but not back up unless you disconnet air supply.

Aug 11, 2009 | SK Paslode Sk312 Framing Nailer O`ring...

1 Answer

Leak inside Bostitch N80 Nailer, won't drive nails

If the unit is leaking it most likley need a rebuild kit. Go to a Bostitch service center and ask for an ORK-11 kit. That is all the o-rings needed to do an over haul. Or just have them do it.

May 23, 2009 | Stanley Bostitch N80s Nailer -rebuild...

1 Answer

Bostich N80 Framing nailer

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.


Jan 26, 2009 | Stanley Bostitch N80s Nailer -rebuild...

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