Farm Equipment - D17 Manifold stud

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D17 Manifold stud

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=184995
Printed Date: 06 Oct 2025 at 1:26am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: D17 Manifold stud

Posted By: DSeries4
Subject: D17 Manifold stud
Date Posted: 07 Dec 2021 at 9:06pm

I know there are some manifold studs that go into the water jacket on the 226 gas engine. I have to replace the stud at the back of the engine. All the other ones are good. I am hoping to avoid having to drain the coolant.

Will I have a flood on my hands when I get it loosened up?

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'49 G, '54 WD45, '55 CA, '56 WD45D, '57 WD45, '58 D14, '59 D14, '60 D14, '63 D15D, '66 D15II, '66 D21II, '67 D17IV, '67 D17IVD, '67 190XTD, '73 620, '76 185, '77 175, '84 8030, '85 6080

Replies:

Posted By: DrAllis
Date Posted: 07 Dec 2021 at 9:39pm

Just changed one a couple of weeks ago. Leave radiator cap on. Have new stud threads already doped up with sealer. Loosen to the last thread and make a quick switch. I lost a thimble full of coolant.