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?...
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My 16 ga FN 250b nailer will only cycle every 6 or 8 attempts and then only when held vertically. I have replaced the maintenance kit of bumper, driver, gasket,handling all parts carefully and making sure they were all lubed well. I carefully torqued all bolts sequentially. Pulling the trigger usually gives only a tiny spurt of air and nothing else. Any counsel?...
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