Exhaust header dent removal?

[nzspokes]

Got a dent in a single pipe of a header set I want to use. Cant use the frozen water trick as dont have a freezer big enough.

Anbody got some cunning ideas to get the dent out?

[Big Dog]

Compressed air and carefully applied heat.

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[Big Dog]

There was a fellow posted about doing just such repairs a while back. If you can't find the thread I can put you in touch.

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[Big Dog]

Found it. http://www.kiwibiker.co.nz/forums/showthread.php/177925-Expansion-chamber-repair

[Wheel]

First up don't get the wife to do this. Have a steel ball of a close diameter of the pipe welded to a chain . Heat the dent till low red heat then draw the chain through the pipe pulling the ball past the dent . Make a larger ball till you are satisfied with the result. W

[husaberg]

Compressed air and carefully applied heat.

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Compressed air is dangerous plus not that efffective if you must use that sort of method use a water blaster.
or better still a just use a long dolly and heat.

[AllanB]

Years back I've seen a rod welded to the dent and the dent heated red hot then skillfully pulled out. Tidy up with careful use of a grinder and buffer. I recommend the sanding flappers instead of grinding wheels.

Depends on the dent of course.

[jellywrestler]

all these experts yet none have asked the material it's made from...

[nzspokes]

all these experts yet none have asked the material it's made from...

Or even if he still has the bike over a year later......