D-19 Manifold
Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=30826
Printed Date: 09 Mar 2025 at 7:48am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: D-19 Manifold
Posted By: Pa'sOldA/C
Subject: D-19 Manifold
Date Posted: 15 May 2011 at 11:52pm
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The theards are shot for my exhaust manifold, anybody have any suggestions. So far no luck on a two inch tap to try and get what threads left cleaned up.
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Replies:
Posted By: MACK
Date Posted: 16 May 2011 at 8:39am
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Use thread cutting oil on tap. If that don't work make a plate with 4 holes then drill and tap 4 holes to match plate in top of manifold. Weld a 2" pipe in plate goung into manifold as far as possible. Bolt to manifold and put muffler onto pipe. MACK
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Posted By: Pa'sOldA/C
Date Posted: 16 May 2011 at 2:13pm
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Sounds like a good Idea but this one does not have the 4 holes. An to make things worse it appears to be just a bit smaller than 2 inch.
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Posted By: wfmurray
Date Posted: 16 May 2011 at 4:29pm
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Don't fully under stand problem but could you brase a pipe coupling on to mainfold.
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Posted By: ChuckLuedtkeSEWI
Date Posted: 16 May 2011 at 8:41pm
I agree, I have a crap manifold here on my D17 with the threaded hole, or at least it used to have one. I cut off the broken part, found a black pipe fitting with the same threaded hole, and tried to weld it on but the cast was so deteriorated, it kept falling apart. So I brazed it on just to put a muffler on it to get it running to fix all the other issues. That was two years ago and it is still holding together fine. Not the prettiest thing, but it's my loader tractor, not a showpiece.
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1955 WD45 diesel 203322 was my dad's tractor, 1966 D15 23530, 1961 HD3 Crawler 1918, 1966 D17 IV 83495, 1937 WC 41255, 1962 D19 6221
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