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1999 Honda Civic Crack in exhaust manifold

Tiny
STEVECRED
  • MEMBER
  • 1999 HONDA CIVIC
1999 Honda Civic

I have a crack in the exhaust manifold. What do you recommend to seal it? My mechanic told me I can't weld it because it's cast iron. But I was wondering if I could use a product like "Mighty Putty" (that I've seen in infomercials) to seal it to avoid replacing this very expensive part.

What do you think?
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Tuesday, March 24th, 2009 AT 8:03 AM

1 Reply

Tiny
F4I_GUY
  • MECHANIC
  • 3,302 POSTS
I've seen people weld cast iron manifolds, even though it takes a skilled welder. A product like mighty putty will most likely not work, mostly due to the high temperature of the manifold and the shape of where the crack is, it will be hard to create a perfect seal.
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Tuesday, March 24th, 2009 AT 5:18 PM

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