[AT] Hole in exhaust manifold....

[Jim & Lyn Evans]

Since not all of us own stuff that has parts readily available, I think we
are all looking for advise on how to repair broken items.  Reading about
everyone's method of repairing manifolds is a lot more informative than
someone repeating over and over to buy a new one.  Anyone can pick up a
catalog and credit card and order a new one. The problem is that not all
manifolds are easy or cheap to replace.  I have one tractor with a manifold
that will cost me over $500 to replace with a new one.  Used ones are not
available.  The new one will also take over 6 months to get.  Guess what it
costs if you have to make your own patterns to make a new manifold.  On one
of my tractors, I formed a piece of 16 or 18 gauge sheet metal to match the
shape of the manifold and brazed it in place.  It has been there for over
two years now without problems.   The original cast manifold lasted 70 years
of hard use before breaking.  I bet my patch lasts at least 10 years of
occasional use.  

-----Original Message-----
From: at-bounces at lists.antique-tractor.com
[mailto:at-bounces at lists.antique-tractor.com] On Behalf Of Kevin
Sent: Monday, January 29, 2007 6:10 PM
To: Antique tractor email discussion group
Subject: Re: [AT] Hole in exhaust manifold....

I never had a heat gauge that would measure 2000 degrees, but I had a 68
Dodge Super Bee that after changing camshaft in the 413 engine.  And having
the exhaust valves duration changed so much that after a good run on warm
engine, the ex manifolds would be glowing red hot. It almost looked like you
could see through them. Even in bright daylight.
-----------------------------------------snip
Now it's been a while since I taught this stuff, but doesn't braise melt
around 800?
-------------------------------------------snip
If your exhaust manifold was made out of brase or brass yes they it would
melt.
Since I dont have the measuring device or the car that done it, im out.
You can lead a horse to water     but can you make it drink ??
All anyone is doing is trying to say how each and everyone would fix thier
own manifold if we all had holes in ours.
I have learned alot of ways to cure the problem and how others approach and
repair thier stuff. Here I thought that I was the master of rigging oh well
cant win em all. I still say the manifold is rotten burnt out junk and
should be replaced.
But thats just the way I would fix it if it were mine. I hope the putty or
wharever fixes it and it never gives more trouble.
Im out.
ironman
Kevin Mosier
270-388-4052

----- Original Message -----
From: "Al Jones" <aljones at ncfreedom.net>
To: "'Antique tractor email discussion group'" 
<at at lists.antique-tractor.com>
Sent: Monday, January 29, 2007 5:21 PM
Subject: RE: [AT] Hole in exhaust manifold....


> If a manifold got to 2000 degrees, the pistons and associated parts of
> the engine would be in the process of, or already turned into, molten
> puddles.  Now it's been a while since I taught this stuff, but doesn't
> braise melt around 800?
>
> Al
>
> -----Original Message-----
> From: at-bounces at lists.antique-tractor.com
> [mailto:at-bounces at lists.antique-tractor.com] On Behalf Of John Kennedy
> Sent: Monday, January 29, 2007 12:39 PM
> To: at at lists.antique-tractor.com
> Subject: Re: [AT] Hole in exhaust manifold....
>
> Exhaust manifolds can get hot enough to burn though cast iron why would
> anyone want to use something that can't stand heat above a few hundred
> degrees. I have personally seem some of mine red hot when run hard that
> is
> over 2000 degrees.  Like I said before either braise it or replace it.
>
>
>
> _______________________________________________
> AT mailing list
> http://www.antique-tractor.com/mailman/listinfo/at 

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