Garden Tractors - Kohler head

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Kohler head

Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Garden Tractors
Forum Description: A great place to discuss the Simplicity and Allis Chalmers Garden Models
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=205025
Printed Date: 03 Nov 2025 at 11:58pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: Kohler head

Posted By: DaveWisc.
Subject: Kohler head
Date Posted: 20 Jan 2025 at 2:03pm

A small piece about .5 inches broke out of the edge where the exhaust manifold gasket goes .What have you guys used to fix the problem.It is made of Aliuenium(poor spelling)can I use like JB weld on it.

Replies:

Posted By: 55allis
Date Posted: 21 Jan 2025 at 10:31pm

JB Weld probably won’t handle the heat…
What model of Kohler are you working with?
Maybe have a blacksmith or welding shop weld it?

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1955 AC WD45 diesel with D262 repower, 1949 AC WD45

Posted By: jaybmiller
Date Posted: 22 Jan 2025 at 8:46am

really need to see a good picture of it, to think about 'options'.

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3 D-14s,A-C forklift, B-112
Kubota BX23S lil' TOOT( The Other Orange Tractor)

Never burn your bridges, unless you can walk on water

Posted By: DaveWisc.
Date Posted: 22 Jan 2025 at 2:20pm

Not very big piece will send picture later

Posted By: HudCo
Date Posted: 23 Jan 2025 at 10:34pm

flat head or overhead valve ?

Posted By: DaveWisc.
Date Posted: 24 Jan 2025 at 9:43am

Overhead valve

Posted By: 55allis
Date Posted: 24 Jan 2025 at 10:51pm

What’s the model of engine?

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1955 AC WD45 diesel with D262 repower, 1949 AC WD45

Posted By: DaveWisc.
Date Posted: 27 Jan 2025 at 4:16pm

Kohler361

Posted By: jaybmiller
Date Posted: 27 Jan 2025 at 5:43pm

18 hp ...

do you have the service manual for it ???

I just downloaded it ,again,

exhaust is internally tapped for 1/2" or 3/4" pipe fittings

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3 D-14s,A-C forklift, B-112
Kubota BX23S lil' TOOT( The Other Orange Tractor)

Never burn your bridges, unless you can walk on water

Posted By: DaveWisc.
Date Posted: 27 Jan 2025 at 7:56pm

Mine is burned out a little on the head exhaust portion the topi am using JB weld temperature is 550 so hope it holds

Posted By: 55allis
Date Posted: 27 Jan 2025 at 10:11pm

If you go that route you might try steelstick… it looks to be good with pressure and heat. Never tried it myself but I have used waterweld on cracked air compressor line…
https://www.acehardware.com/departments/automotive-rv-and-marine/auto-tools-and-maintenance/automotive-adhesives/8167629" rel="nofollow - https://www.acehardware.com/departments/automotive-rv-and-marine/auto-tools-and-maintenance/automotive-adhesives/8167629

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1955 AC WD45 diesel with D262 repower, 1949 AC WD45

Posted By: Steve in NJ
Date Posted: 02 Feb 2025 at 8:59am

I think the JB weld will work. I've repaired cracked diesel blocks and never had any leaks or anything failing. Just gotta' make sure the area to be repaired is clean. Use Brakekleen to soak and get any oil or soot out of the damaged area, then mix a batch up. Give it a couple days to cure in 50 or above degrees. (if possible this time of year)

Steve@B&B

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39'RC, 43'WC, 48'B, 49'G, 50'WF, 65 Big 10, 67'B-110, 75'716H, 2-620's, & a Motorhead wife

Posted By: DaveWisc.
Date Posted: 03 Feb 2025 at 2:10pm

Well I did try JDWeld will see if it holds thanks for all your informstion