Stripped thread on exhaust stub

[John Roberts]

Torque for Exhaust nut 118ft-lbs plus or minus 15ft-lbs, and that's from the BMW Workshop Manual. Still, I suppose it ought to be enough(!)

To be honest, it shouldn't be too hard to apply: my spanner (wrench) is 13inches (about a foot) or 330mm long. If you press your foot near the end all you have to do is to apply 118 lbs of your weight to it and hey, presto- you've got 118ft-lbs of torque, near enough. Although it does seem a huge amount of torque compared to most other nuts/bolts on the bike it really isn't too hard to apply thanks to the length of the spanner.

J

PS Still seems a LOT!

[Cameron]

Applying the tightening torque is not the problem.
Any kind of lubricant must be high heat resistant, or after many heat/cool cycles it will bind the parts together and pile up on removal, requiring more torque and causing thread damage.
Similar parts on my aircraft were fastened together dry and safety wired, but still seemed to tighten up over time...

[John Roberts]

I had a Taylorcraft BC12-D up to a few years ago. If you are going to tell me you had a floatplane up in the Rockies I am going to stop talking to you. Right now. So there.

Do you know Jim Bacon, Jasper Air Services? He operates out of Jasper Hinton, you take OFF at 4,000feet there. I hired his 172 there two years ago and flew over Jasper, and under most everything else, like Mount Edith Cavel, and some (I think) 12,-14,000 ft peaks, maintaining 8,000ft most of the time. Oh, and over a bit of the Columbia Icefield. When I asked about possible forced landing sites in the middle of the mountains he was quite upbeat and positive but without providing an actual answer. Strange, that. Still, under the circumstances, it was a dumb question.

Tell me more, do.

Regards,

John

PS, PLANErman, eh? NOW I see what you meant!
Off topic, I know- I have a machine shop myself. Lathe, Miller (Van Norman) Shaper etc. but interest rather than occupation.
J.