tips for welding cracked exhaust manifolds?

[Mihnea Cotet]

So you mean us "cheap" turbo guys could weld other flanges to standard
exhaust manifolds by using this method? This is great news, I think I'm
going to put a K27 on my 20vt :-))))

Thanks,

Mihnea


At 14:27 19/01/2003 -0500, Pat Dooley wrote:
>You need nickel rod or wire to weld cast iron.
>Heat the weld area with an oxy/acet torch until it almost glows.
>Weld about 1/4 to 1/2 inch then tap the area with a hammer about 10 times.
>Continue until crack is sealed.
>
>I welded a Garrett flange to a rabbit exhaust manifold years ago using this
>technique with no failures to date.
>
> > -----Original Message-----
> > From: quattro-admin at audifans.com [mailto:quattro-admin at audifans.com]On
> > Behalf Of scott thomas
> > Sent: Sunday, January 19, 2003 2:12 PM
> > To: quattro at audifans.com
> > Subject: tips for welding cracked exhaust manifolds?
> >
> >
> > I just bought an 88 amp Lincoln wire feed welder and was wondering if
> > it's heavy duty enough to weld an exhuast manifold crack for a 10vt?
> >
> > Any tips on how to do this? I heard someone heated his manifold in
> > his BBQ grill ahead of time.
> >
> > I've got a bunch of manifolds from three different cars. All have the
> > same crack on cylinder #3, as well as some cracking at the collector.
> > Luckily, I had an uncracked one to put on my car during a recent
> > upper end rebuild.
> >
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