> I'd like to get the header out for a ceramic coating, but, of
> course, can't
> budge it from its junction with the tail pipe. Many applications of
> rust-bust stuff hasn't helped. Is there a way to get them
> apart without cutting?
Not always.
> Do I apply a propane torch?
Should help, but don't forget that most "rust bust stuff" is flammable. Get
it good and hot, then try twisting the pipes. Wrapping a wet towel around
the part that goes inside (to create a temporary thermal gradient) may help
too. Once they start to move a little, dose with PB Blaster then keep
twisting back and forth.
Randall
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