Oops, I didn't know

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Blog entry by davidroberts posted 02-11-2011 05:20 AM 1611 reads 0 times favorited 5 comments Add to Favorites Watch

So I promised to cut some one foot diameter circles out of hardboard for my kids school project. I needed to make a circle cutting jig to use on the bandsaw. Something quick, nothing fancy, a one time use jig. I just needed to hold a couple of stops on the underside so I pulled out my 18 gauge brad nailer. Easy peasy. But wait, what happens to a nail gun that has been sitting in a garage at between 30F to 40F for the past few days. Well mine started leaking air after about 5 shots. So a coincidence, right? I then pulled out my 15 gauge finish nailer and got 3 shots off before it started leaking air. The 18 gauge will still shoot brads but the 15 gauge is toast. I’ll need to put an overhaul kit in both. Who knew a cold o-ring can fail, well besides the o-ring failure on the Challanger, but really, has anyone had this experience with a cold nailer before?

-- Better woodworking through old hand tools.

5 comments so far

View cabmaker's profile


1731 posts in 2808 days

#1 posted 02-11-2011 05:30 AM

Yes I have, just this morning too. When we used to travel to jobs in the winter we kept our nailers in the cab to stay warm. Even now I warm guns up a bit before I pull the trigger. This has not been a problem with me unless temps or sustained below freezing for a while which is not real often here (Texas). Oil viscosity is heavy when cold and I have found that O-rings are not as happy in cold temps.

View Gregn's profile


1642 posts in 2983 days

#2 posted 02-11-2011 06:00 AM

I have a 16 gauge that needs the O-Rings replaced because of cold weather. Some people think its strange to keep the shop heated when not in the shop. Ha I said, and you keep your car in a heated garage. Cold is hard on tools.

-- I don't make mistakes, I have great learning lessons, Greg

View jack1's profile


2107 posts in 4027 days

#3 posted 02-12-2011 04:47 AM

As Johny Carson would say, “Just how cold was it David?” ;0)

-- jack -- ...measure once, curse twice!

View jeepturner's profile


939 posts in 2792 days

#4 posted 02-12-2011 04:53 AM

cold and “O” rings have never gone together, just ask an airplane mechanic that is standing out in sub zero weather with a heater pointed not at him but a component on the airplane. Just trying to get the leakage rate down to an acceptable level. :-)

-- Mel,

View Dark_Lightning's profile


3161 posts in 3108 days

#5 posted 02-12-2011 05:12 AM

Cold and O-rings?!? Think Space Shuttle Challenger. That was a launch with people aboard that never should have happened…leaking BIG O-rings.

-- Random Orbital Nailer

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