Is it possible to repair a exhaust mani?

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Old Aug 29, 2009 | 01:04 PM
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Default Is it possible to repair a exhaust mani?

Sorry if this is not posted in the right forum, its the only one I thought it could be answered in. I have a 2 piece Megan header (stainless) and I bought it used with a small dent in the lower section (from a speed bump ). And I have a fair amount of training/experaince welding and doing body work. So I was wondering if you guys think it would be ok to first heat up the dent, weld a stud to it and pull it out with a slide hammer. The only thing I'm concerned with is how I should finish the metal? Should I use some kind of coating to prevent rust or do you think the stainless should be fine uncoated?
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Old Aug 29, 2009 | 01:08 PM
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Default Re: Is it possible to repair a exhaust mani?

Stainless will be fine uncoated. I have thought myself of buying tubing of the same size, cutting out the dent, and welding in a repair, as if just like a rusted quarter panel. That's a neat idea, and I say go for it.
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Old Aug 29, 2009 | 01:33 PM
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Default Re: Is it possible to repair a exhaust mani?

If the dent was larger, I would be going that route (or buy a new mani). But its small, about a inch wide.
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Old Aug 30, 2009 | 12:53 PM
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Default Re: Is it possible to repair a exhaust mani?

It's a Megan header, I really wouldn't be that concerned about it. If it was a Jasma or Hytech, I'd worry.
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Old Aug 30, 2009 | 02:00 PM
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Default Re: Is it possible to repair a exhaust mani?

^^^ that's really how I feel about it to be honest lol ^^^
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Old Aug 30, 2009 | 02:16 PM
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Default Re: Is it possible to repair a exhaust mani?

cut the dented section out, reshape it, weld it back in.
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Old Sep 1, 2009 | 04:53 PM
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Default Re: Is it possible to repair a exhaust mani?

yeah, cut out the dent and hammer back into the original shape and weld it back in. i think if you use stainless welding wire you won't need to coat it or worry about rust.
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Old Sep 4, 2009 | 02:40 PM
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Default Re: Is it possible to repair a exhaust mani?

How bad is the dent? and how low is the car? chances are that it might get dented again if your cars lowered....it may not be worth the time.

But if your just looking to see if you can do it, i say go for it. could be a fun day in the garage.
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Old Sep 8, 2009 | 03:02 PM
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Default Re: Is it possible to repair a exhaust mani?

Originally Posted by shaggyeg6si
It's a Megan header, I really wouldn't be that concerned about it. If it was a Jasma or Hytech, I'd worry.
I never knew Jasma was a name brand ????
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