Air leak around nailer trigger

[sbhayden1]

I just rebuilt the trigger of my Porter Cable FN250B Pneumatic nailer and fixed the original problem. But now it leaks air massively even after great care reassembling it. I did reuse one itty-bitty o-ring and one other, both of which looked OK. If I have to take it back apart, should the new o-rings be still good?
Having no grease to use, I used a very thin faucet repair lube on the assemble upon putting it back together. OK?

[cmoorejack]

Hey sbhayden1,
Not sure on the faucet repair stuff..but the o-rings do need an oil base grease..i use a synthetic grease...[most o-ring kits come with a small tube of lube].. sometimes it takes a coupla times of reassembly to get it right...one repair trick is to put a little air tool oil on the o-rings [piston ring also] with any nails removed from the mag..push the safety down,pull the trigger and then plug in the air hose..the gun should fire and automatically reset the cycle of the tool..also hitting the tool with a rubber mallet with the air attached sometimes will "seat" the o-rings..
hope this helps?
Craig

[sbhayden1]

Thanks, but I tried and it did not work this time. I'll do as you suggest and make sure to put in the right lube after replacing the o-rings again.