Farm Equipment - WD manifold stud bolts?????

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WD manifold stud bolts?????

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=162257
Printed Date: 22 Aug 2025 at 11:43pm
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Topic: WD manifold stud bolts?????

Posted By: LionelinKY
Subject: WD manifold stud bolts?????
Date Posted: 26 Jun 2019 at 11:55pm

I am planning to soon replace the manifold on my WD including the manifold studs as well. I am aware that some of the studs go through the water jacket and require sealant on them during installation. My question is for the fellas out there that have done this before and especially for those that have done so multiple times. What would you guys say is the best product to hold up in this particular application?? Is it alright to just use any brand RTV silicone rated for coolant use or should I really look for something more specific for this job?? TIA guys.

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"My name is Lionel and I'm an Allisoholic"

Replies:

Posted By: DrAllis
Date Posted: 27 Jun 2019 at 6:58am

Anything is better than nothing. You could still have some seepage, but leave it alone and it will soon rust over and quit leaking.

Posted By: Brian G. NY
Date Posted: 27 Jun 2019 at 7:55pm

I'm old school.....Permatex #2 is what i use.

Posted By: Bill_MN
Date Posted: 27 Jun 2019 at 9:13pm

Permatex makes a specific thread sealant

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1951 WD #78283, 1918 Case 28x50 Thresher #76738, Case Centennial B 2x16 Plow

Posted By: 200Tom1
Date Posted: 27 Jun 2019 at 9:15pm

Rector Seal #5.

Posted By: Allis dave
Date Posted: 02 Jul 2019 at 7:02am

I used #2 permatex no issues.

For the studs. I recommend getting them from steiner's. They actually have the correct ones. I bought from other vendors and they were just generic auto studs. The correct ones you can thread finger tight all the way into the block for a good seal. the generic ones, you have to just thread them partially in until you have the correct amount of threads for the nut.

You'll re-torque them 2-3 times after running a few times until they finally stop moving.

Posted By: DrAllis
Date Posted: 02 Jul 2019 at 7:13am

Re-torque them COLD.

Posted By: savedallis1953
Date Posted: 02 Jul 2019 at 8:10pm

Never seize the studs then two wraps of thread tape and bingo no leaks + easy removal

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1953 WD, 1953 WD, WD engine with WD-45 crankshaft.