Paul
   McMaster definitely has some tubing that will work. The telescoping
   hobby aluminum or brass as Aubrey suggested will probably be a
   really nice and cheap (not to mention light weight) way to go.
   The tension bolt is .375 or 3/8 so I.D. of the tubing should be
   around .400 maybe allow some room for silicone. I don't think the
   tubing actually has to touch the walls of the housing,Iron or
   aluminum. Of course now,you have to make sure that the concentrically
   is fairly good as you will be turning the entire assembly in the hole.
   OR maybe use a light coat of Vaseline on the tension bolt and when
   the silicone cures the bolt will simply turn isinde the whole
   assembly that's if the concentrically is to far off. Otherwise it
   may be like a cam of sorts. Follow Me on that????

   Tony

   Yes getting it to go in might be a REAL problem if it
   is NOT concentric.

   I think you would be better off just wrapping it with
   silicone tape.

   But let us know success or failure. We learn from mistakes
   as well as successes.
   --
   Paul Lamar ...No rotor no motor

Paul, and Tony,
I have a suggestion for you. Since the need is to dampen the silicone
doesn't need to adhere to the housings, I suggest you take a tube and
cut it in two parts. Coat the tension bolt with hi-temp silicone
liberaly, Take a tube with an id about the same as the diameter of the
housing hole and enclose the bolt. Cast the bolt with silicone. Tape the
bolts and tubes up and let set for a few days. The silicone will help
dampen vibration even if it's not a press fit in the holes. Oh I almost
forgot, remove the tubing before inserting the bolt/silicone.
Bill Jepson


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