The outer casings on my heat exchangers have separated from the inner exhaust pipes and as such rattle. This will fail the m.o.t test that we have over here.
What I'd like to know is what is under these outer covers? Is there some kind of finned construction or bare naked pipe?
I'm not sure what the pipe is made of, looks to be some kind of cast but the outer case is steel so welding will be difficult.
They look to be standard.
bare steel tubing
Mig or Tig the thing and be done with it. I'm guessing mild steel on both the pipe and sheet metal surround. Clamp, strike that arch and grind. A little paint and while wet, throw a little fine dirt.........the MOT guys won't be any wiser.
If you have a gas set then a number one or two tip with thin rod, or braze.
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