I have a 1946 102 plus long shaft.The exhaust tube has a couple of dents in it which I would like to remove.My idea is to make a mandrel which is a sliding fit in the tube and has a taper at one end.The idea is to then draw it through the tube with a long piece of threaded bar which will hopefully push out the dents from within.
Has anyone tried anything like this or have any better ideas?
I am also looking for an original flywheel cover plate,can anyone help?
Thanks
102 plus long shaft
Moderators: John@sos, charlesp, Charles uk, RickUK, Petergalileo
HI Stephen - I have had success in getting dents out of an exhaust tube, where I used a round billet probably about two-thirds the diameter of the tube, clamped in a vice, sliding the exhaust tube over to get the dent backed up by the billet, and gently panel beating around the top edge of the dent crater.
Being brass, the tubes yield quite easily to this treatment. Some heat might help, but I didn't find it necessary.
I think that drawing a tapered mandrel through the tube won't have enough of a localised effect to push the dents out. Rick
Being brass, the tubes yield quite easily to this treatment. Some heat might help, but I didn't find it necessary.
I think that drawing a tapered mandrel through the tube won't have enough of a localised effect to push the dents out. Rick
102 plus long shaft
Rick. Thanks for your thoughts on this.Your way sounds an easier option than mine,the only misgiving I have is damaging the chromium plating.Did you use a steel panel beating hammer or a hide/rubber faced one?Steve
Hi Stephen - I used a rubber 'deadblow' type hammer, but I would also have been happy enough to use a steel hammer. I wasn't worried about the chrome as I was having the tube replated anyway (my motors have usually needed the exhaust and drive tubes replated).
Chrome is quite brittle and often fractures if distorted - is yours OK in the area of the dents? Rick
Chrome is quite brittle and often fractures if distorted - is yours OK in the area of the dents? Rick