Re: [Amc-list] My '65 American moves under it's own power!

[Wrambler242@xxxxxxxxxxx]

Frank,
  Thanks for the reply, glad to know I'm not a total idiot...debatable...

I brazed an exhaust manifold on a Turbo coupe back in the late 80's.
heated the manifild cherry red after v grinding out the rusty crack, then brazed it and  then reheated it best I could.
sent it out and had it resurfaced.
  It was a used car at the dealer the manager wanted to fix the noise and run thru the auction. I did not install a gasket between the block and manifold. just machined surface to surface so ther was no gasket to compress or allow the manifold to twist.
Wouldn't you know after i lowbucked the fix for the guy he sold it off the lot with warranty to a customer that frequented the shop!
  I saw that car return for oil changes etc; for several years and that braze job held the entire time.
Surprised me.

--
Mark Price
Morgantown, WV
1969 AMC Rambler, 4.0L, EFI, T-5
2004 Grand Cherokee Laredo, 4.7L, Quadratrc II
" Chronic Pain Hurts"

 -------------- Original message ----------------------
From: Frank Swygert <farna@xxxxxxx>
> You're not propagating bad advice Tom. Cast iron isn't easy to weld. An exhaust 
> manifold doesn't have a lot of stress on it, so Garry's method will work, 
> especially if you have the manifold somewhere it can cool slowly (the slower the 
> better!). After "stick" welding (with a special high nickel rod made for cast 
> iron) it would be a good idea to heat it back up with a torch then let it cool 
> slowly. 
> 
> Most castings, especially if under stress once installed, can't be so easily 
> welded. Brazing with a bronze or brass rod would work better/easier, but be more 
> noticeable unless painted, and we all know paint doesn't stay long on an exhaust 
> manifold. But then the exhaust manifold is not real noticeable on a 196, being 
> partially under the intake area of the head. Maybe some of the Eastwood exhaust 
> manifold coatings would work well though, haven't tried any. 
> 
> --------------
> Date: Mon, 25 Feb 2008 18:25:31 -0800 (PST)
> From: Tom Jennings <tomj@xxxxxxx>
> 
> On Mon, 25 Feb 2008, Garry Nordstrom wrote:
> > manifold is easy fix, put the heating tip on the torch, get it red hot and
> > weld it up, most machine shops can do it if you do not have tools
> 
> 
> Really? I always thought that cast manifold stuff was unweldable!
> 
> Sorry for propagating bad advice then.
> 
> -- 
> Frank Swygert
> Publisher, "American Motors Cars" 
> Magazine (AMC)
> For all AMC enthusiasts
> http://farna.home.att.net/AMC.html
> (free download available!)
> 
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