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Leak from Bostitch coil nailer

Should their be a silicon gasket between the two main parts of the nailer that are joined using 4 allen bolts?
Or just a metal to metal contact?
When I tighten the bolts, the leak stops for a while then reappears after firing nails, I am wondering if the gun firing is making the joint a bit looser.
Neil

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  • mutha999 Jan 11, 2009

    Thanks for heping, will let you know when my o ring set comes



    Neil

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  • 52 Answers

On Stome bostitch there is a rubber oring gasket that fits in groove and others have a thick paper gasket.
Sounds odd that it stops then starts again. try a gasket and inspect to make sure the head it not cracked or was hit with a hammer

Posted on Jan 11, 2009

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1 Answer

GOT BAD AIR LEAK WEN I PLUG IT IN.


Under the cap there are several o-rings, seals, gaskets and seats that have to be in good shape to hold air in so the nailer can work properly. If any of them are worn, broke or dried up the nailer won't function and can leak. First try tightening the cap screws. If that doesn't do it, take the cover off and check the parts inside. Stanley doesn't make repair kits for this nailer so you'll have to identify what parts need replacing and order them seperately. I recommend replacing all o-rings and any damaged seals or seats that need it. You can go to www.bostitch.com or www.ereplacementparts.com to find parts among many other aftermarket parts dealers.

Jan 20, 2011 | Stanley Bostitch PN100 Palm Nailer

1 Answer

Air leaks around green cylinder at trigger area and nail plunger will not retract. this is a stanley bostich rn45b nailer


Your nailer uses a trigger valve (part # tva6 cost about $20) and is sold at www.bostitch.com or generic valves sold on ebay . If you have a source for orings, you could try to repair the valve. Remove the roll pin that holds the trigger to expose the tva6 valve. There are roll pin/pins that hold the valve in just above the valve in the body. Remove these pins and apply air pressure to gun to pop-out the valve. Use caution when you do this. Remove nails, lower pressure to gun and use glove or rag to catch valve because it could come out with force. With tva6 valve in hand remove two pins that hold valve together and remove inner plunger. The middle oring on plunger is cause of leak. Try using an oring about same size as the broken seat. It must fit pretty tight to work. If you had a small leak it could be that the firing pin orings fit too loose or just too worn. Use silicone lube or oring lube on the orings and the valve port. Good holidays.

Dec 02, 2010 | Stanley Bostitch Rn45b1 Industrial Coil...

1 Answer

Hi, got a bostitch N80 that performs ok but leaks air around the 1/16" gasket at the end of gun, also some air out the barrel. would a rebuild kit be advised and where would you suggest? JIM


The rebuild kit # ( ork11) is available on ebay or here:
http://www.mendingshed.com/ork11.html

This kit may not have all the orings but does include other parts needed. There are other kits available on ebay that would include all the orings but missing other parts.
Sometimes all you need is to open gun and clean orings and contact surfaces and lube with silicone paste (sold at Lowes in the plumbing department used to lube faucet orings). The cylinder seal on top of the cylinder and orings at cylinder spacer is usually cause of leak at nose of gun. Good luck

Oct 05, 2010 | Stanley Bostitch F21PL Nailer

1 Answer

I have a stanley bostitch framing gun model f28ww and i it leaking air through the trigger what part do i need to get my gun up and gunning again?


Your nailer uses a trigger valve (part # tva6 cost about $20) and is sold at www.bostitch.com or generic valves sold on ebay . If you have a source for orings, you could try to repair the valve. Remove the roll pin that holds the trigger to expose the tva6 valve. There are roll pin/pins that hold the valve in just above the valve in the body. Remove these pins and apply air pressure to gun to pop-out the valve. Use caution when you do this. Remove nails, lower pressure to gun and use glove or rag to catch valve because it could come out with force. With tva6 valve in hand remove two pins that hold valve together and remove inner plunger. The middle oring on plunger is cause of leak. Try using an oring about same size as the broken seat. It must fit pretty tight to work. If you had a small leak it could be that the firing pin orings fit too loose or  just too worn.  Use silicone lube or oring lube on the orings and the valve port. Good Luck on your repair and email if you have other questions.

Aug 05, 2010 | Stanley Bostitch Coil Framing Nailer

3 Answers

I have a bostitch ridge runner that leaks air badly out of the trigger and wondering how to take out the plastic trigger in the gun. Also what would be the cause of the air leak


The air leak can be one of a few things. FIrst make sure that you have added some pneumatic oil to the air stream. This will lubricate the o-rings and make a tight seal. If that fails to resolve it, repalce the o-rings. (kits available for around $20). Next, woul dbe the trigger assembly itself. These triggers wear over time and are easily replaced.

See the website below for parts and a good diagram of the construction of the gun. You should be able to replace the parts by following the diagrams.

http://www.ereplacementparts.com/bostitch-parts-c-29443.html?gclid=CO6tkb2y6KICFciA5QodOlL9xg

Please note that the exactmodel number is required to get hte correct diagram.

Hope this helps,
Dan

Jul 12, 2010 | Stanley Factory Reconditioned Bostitch...

1 Answer

How to fix leaking air from top of gun


If this unit is new to you, return it for replacement or refund. If the repair is up to you, remove the head (top) of the gun and check the seal (either an 'O' ring or gasket) for damage. Check the head itself for damage or warping of the seal face. Try placing a small ring of Permatex silicon gasket sealer on the head, let cure for a little while until it sets-up, and reinstall the head. Tighten the screws evenly and firmly. Hope this helps!

Apr 02, 2010 | Stanley Factory Reconditioned Bostitch...

3 Answers

Have a bostitch N60 with a trigger air leak


Your nailer uses a trigger valve part # tva6 (cost about $20) and is sold at www.bostitch.com. If you have a source for orings, you could try to repair the valve. Remove the roll pin that holds the trigger to expose the tva6 valve. There are roll pin/pins that hold the valve in just above the valve in the body(Use punch for 3mm hole). Remove these pins and apply air pressure to gun to pop-out the valve. Use caution when you do this. Remove nails, lower pressure to gun and use glove or rag to catch valve because it could come out with force. With tva6 valve in hand remove two pins that hold valve together and remove inner plunger. The middle oring/seal on plunger is cause of leak. Try using an oring with smaller inside diameter than the broken or loose fintting seal that is present. It must fit pretty tight and be slightly thicker than 1/16" to work. Remove the outer orings to valve and clean and re-use same. Clean the valve port in body of gun and check for sharp edges to prevent cutting orings before inserting the valve. Use silicone lube or oring lube on the orings and the valve port (Danco silicone paste sold at Lowes in the plumbing department). Good Luck on your repair and email if you have other questions

Apr 26, 2009 | Air Nailers

2 Answers

We have a Bostitch nailer that leak out of the end


there are o rings inside the nail gun, remove the allen head screws and get replacements.

Apr 10, 2009 | Stanley Bostitch FN16250K - 2 16 - Gauge...

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N80 suddenly quit working


There is a nail stuck inthe grove where the nail comes out. There are 4 allen bolts on the front of the nailer.remove them and you can remove the bent nail. Put it back together and your ready to go.

Mar 11, 2009 | Stanley Bostitch N80s Nailer -rebuild...

1 Answer

Help I have a bostitch N80 coil nailer that leaks from the main part that is held together by the 4 allen bolts, I have checked the tightness and when i re tighten them the leak stops for a while then...


neil
there is an oring gasket that fits in the groove of the N79 N80series coil nailers. It is easily pinched if not put together correctly. Use a lightweight grease in the groove to hold the oring in place upon assembly.

Jan 10, 2009 | Air Nailers

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