[Farmall] 1949 H Exhaust Pipe

[farmallgray at aol.com]

Chasing is similar to tapping. Chasing is not supposed to remove any metal. You will probably have a hard time finding a chaser for 2" pipe thread anyway. If the threads are that bad they will probably
need cut a little deeper anyway so a tap will do just fine. Hopefully you know someone you can borrow one from.



Todd Markle 

Spring Mills, Pa.



-----Original Message-----
From: Tim Savelle <tim.savelle at gmail.com>
To: Farmall/IHC mailing list <farmall at lists.antique-tractor.com>
Sent: Wed, Jun 6, 2012 5:08 pm
Subject: Re: [Farmall] 1949 H Exhaust Pipe


*Thanks for the quick reply, John.  I don't know what "chased" means.  Is
hat the same as tapping?  * *It does appear as if there were threads in
he manifold at one time, but they are almost indistinguishable.  **Rust
nd carbon buildup, I suppose.  I've never tried to tap cast iron.  **Are
here any pitfalls that I should know about? Tim*
On Wed, Jun 6, 2012 at 3:19 PM, Gwinn, John J (GE Transportation) <
ohn.J.gwinn at ge.com> wrote:
> >From my experience, there is no adhesive product for the application you
 describe.  The original manifold was threaded for two inch normal pipe
 thread (NPT).  The manifold threads need to be "chased" and a new threaded
 pipe stub screwed in-place.  Such a repair will give you an adequate
 exhaust seal and provide sufficient support for your muffler or exhaust
 pipe.  Such a repair is fairly inexpensive and quick to apply.

 -----Original Message-----
 From: farmall-bounces at lists.antique-tractor.com [mailto:
 farmall-bounces at lists.antique-tractor.com] On Behalf Of Tim Savelle
 Sent: Wednesday, June 06, 2012 3:07 PM
 To: Farmall/IHC mailing list
 Subject: [Farmall] 1949 H Exhaust Pipe

 Got a problem.  The exhaust pipe on my 1949H broke lose from the manifold
 recently when I hit a bump.  The pipe is 2" black iron pipe, and a previous
 owner had apparently not welded it very good to the manifold.  Someone in
 my tractor club suggested grinding down the end of the pipe until it fits
 inside the manifold and drive it in place.  I did that, but afraid of
 breaking the manifold driving it in I decided to seat it good and try to
 seal it.  I've tried two different compounds:  a muffler sealer from a
 parts store and JB Weld.  Neither held up under the heat.  I don't think a
 welder is going to be willing to try to weld or braze it back into place
 because of the proximity to the gas tank and other meltable things, and I
 would prefer not to take off the manifold nor the gas tank due to the time
 involved.  Does anyone know of a sealing compound of some sort that will
 stand up to the heat at the intersection of the exhaust pipe and manifold?
  Guess I'm looking for a quick, easy fix here if one can be found to
 prevent extended down time for repairs.  Thanks a bunch, Tim
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