Farm Equipment - B Radiator Replacement

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B Radiator Replacement

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=14037
Printed Date: 02 Feb 2025 at 9:52am
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Topic: B Radiator Replacement

Posted By: ohnomrbill
Subject: B Radiator Replacement
Date Posted: 18 Jun 2010 at 3:46am

Question on radiator replacement for a 1950 B.

The unit I have on there now is an unpressurized version. Some of the ads I've seen for replacements make a point of saying they're pressurized and need to run a different cap, some don't say at all. Is the non-pressurized version no longer available? Is one better than the other? Are there any issues switching from one version to the other beyond the different cap?

Thanks,

Bill

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1949 and 1952 WDs

Replies:

Posted By: CTuckerNWIL
Date Posted: 18 Jun 2010 at 7:58am

Mr Bill, If you put a 7lb cap on yours, it will be pressurized. I don't know of any difference than a spring loaded cap.

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Lena 1935 WC12xxx, Willie 1951 CA6xx Dad bought new, 1954WD45 PS, 1960 D17 NF

Posted By: ohnomrbill
Date Posted: 18 Jun 2010 at 12:18pm

Thanks.

Planning on replacing the radiator because it's leaking at multiple places through what looks like some old repairs. Just was curious as to if there were two different versions of the replacement part.

Bill

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1949 and 1952 WDs

Posted By: ChuckLuedtkeSEWI
Date Posted: 18 Jun 2010 at 5:51pm

Correct me if I'm wrong, but I thought the non pressurized units had a different neck on them that was similar to the gas cap hole and took the non pressurized cap. I thought the pressurized radiators had a different neck on them. I have a spare non pressurized one here in good shape, but the side tin piece needs to be rebrazed onto it. The core is in good shape though.

Posted By: CTuckerNWIL
Date Posted: 18 Jun 2010 at 6:15pm

Well Chuck I guess I can still learn. I'll have to compare radiators now when I see a tractor. I suppose the ones that weren't pressurized might not have the flat area inside the neck for the pressure cap to seat.

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http://www.ae-ta.com" rel="nofollow - http://www.ae-ta.com
Lena 1935 WC12xxx, Willie 1951 CA6xx Dad bought new, 1954WD45 PS, 1960 D17 NF

Posted By: George R. (MN)
Date Posted: 18 Jun 2010 at 6:18pm

Bill,

Chuck is absolutely correct. The unpressurized is just a straight neck. The pressurized radiator has a flange in the neck. If memory serves me correct you would want to add a 4lb pressurized cap to that. Depends on the year and if you have a thermostat would determine if the system is pressurized.

Good luck,

George

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My tractor is not leaking oil, it's just marking it's territory!

Posted By: ohnomrbill
Date Posted: 18 Jun 2010 at 9:58pm

George,

Thanks for the info. I'm gonna shoot for the non-pressurized replacement just to keep things close to original.

Thanks,

Bill

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1949 and 1952 WDs