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I've never done this job but I've done similar by using a dremmel and a grinding tool. I grind a slot 90 degrees to the thread on the inside and when ive ground enough metal away, crush the sacrificial part together (In this case the cylinder) and it usually comes away dead easy, and if you accidently ground into the threads, it isn't to bad when its in a line.
It won't take an hour jmoore. You need someone holding the torch on the body and it needs to be red hot when you unscrew the old cylinder. You'll be able to feel it pretty quick if it's galling. You can use a bipod sleeve as a wrench or weld a big tractor lug nut on the front of the cylinder first like I had to because the bipod sleeve wouldn't budge it. Incidentally, I gave the owner the old gas cylinder with the huge lug nut welded on and he was quite amazed! He's keeping it as a paperweight for his desk.
I would love to have seen some pictures of that..........
Oh, yeah, been down that route about a thousand times as well. Sometimes what I'm working on is rather immobile....Quote:
Originally Posted by Brit plumber
Brian, after years of trying not to kill parts costing well into the six figure range, I tend to approach new jobs VERY SLOWLY. For me, often a little "dink" or scratch in a part means DOOM. (Don't want something coming apart months later at full power or at 30,000 ft....)
Once the job is familiar, things may, or may not, go rather more quickly!
Are you a aircraft techie?Quote:
Originally Posted by jmoore
Of sorts...
Join the club, I fit Ejection seats and External Fuel tank amongst other things.