[W126 Coupe] Bosch air gun.

[Carl Hansen]

Hi Mike, 
This BOSCH air gun is rated at 229 ftlbs but I have come to the conclusion that ratings are irelevant. Actual performance is what matters.
Compare a Ford Mustang or a Corvette to a Mercedes-Benz 560 SEC, both of these cars may have more hp's than the M-B. However by the time they are finished making a lot of noise and smoke the M-B is at its destination.
It depends not as much on hp's and psi ratings but how the thing is designed and works. 
I have a Ford camper with dual wheels on the back. they are torqued to 155 lbs. 
I had all the rear wheels off a week ago to replace the brakes. The first lug nut came off so easy that I thought that I had forgot to tighten them before. So I checked the others and they were torqued properly. I tried to losen one with the torque wrench and it took at least 175 ftlbs to break it loose. Next I went about removing the remaining lug nuts and they came off just like the first one. 
Another thing is that your gun may be old and worn. This one is brand new and produced with up to date technology. All I can say is that I am totally pleased with mine, it has more than enough power for what I need it for. 
Is it possible that your bolts had a coating of loctite on the threads?

Carl H 
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