Farm Equipment - Thread Sealant for Manifold Studs

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Thread Sealant for Manifold Studs

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=32933
Printed Date: 22 Jun 2025 at 8:07am
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Topic: Thread Sealant for Manifold Studs

Posted By: Osage_Orange
Subject: Thread Sealant for Manifold Studs
Date Posted: 27 Jun 2011 at 8:31am

Looking for recommendations on whether or not to use Loctite or Permatex or ? on the portion of the stud that screws the block?

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Why is there never time to do it right the first time, but always time to go back and fix it?

Replies:

Posted By: GlenninPA
Date Posted: 27 Jun 2011 at 10:27am

Old manifold bolts are hard enough to get out. Use anti-seize.

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Good judgment comes from experience. Experience comes from bad judgment.
From listening comes wisdom and from speaking comes repentance.
Wise men learn more from fools than fools from the wise.

Posted By: Skyhighballoon(MO)
Date Posted: 27 Jun 2011 at 12:45pm

If the manifold bolt goes into the water jacket you'll need something like permatex to seal it for coolant leaks. I used this on my WD45 head when I had to put a helicoil in for the front bolt and it went into the water jacket. If it's regular hole, I agree with Glenn and I used anti-seize. Mike

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1981 Gleaner F2 Corn Plus w 13' flex
1968 Gleaner EIII w 10' & 330
1969 180 gas
1965 D17 S-IV gas
1963 D17 S-III gas
1956 WD45 gas NF PS
1956 All-Crop 66 Big Bin
303 wire baler, 716H, 712H mowers

Posted By: Coke-in-MN
Date Posted: 27 Jun 2011 at 1:09pm

You could use white lead, or teflon sealant in through bolts, both are good sealants as well as lubricant. Teflon comes in a brush on paste like the white lead or could use the teflon tape also.

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Faith isn't a jump in the dark. It is a walk in the light. Faith is not guessing; it is knowing something.
"Challenges are what make life interesting; overcoming them is what makes life meaningful."

Posted By: Brian G. NY
Date Posted: 27 Jun 2011 at 6:42pm

Permatex #2 for that application.

Its been around for years and it still works good!!

JMHO!!

Posted By: Brian Jasper co. Ia
Date Posted: 27 Jun 2011 at 7:11pm

GM uses teflon pipe paste on engines that have head or other bolts that go into water jackets. Its pretty much the same stuff plumbers use. Use anti seize on dry bolt holes.

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"Any man who thinks he can be happy and prosperous by letting the government take care of him better take a closer look at the American Indian." Henry Ford