Farm Equipment - B non pressurised radiator

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B non pressurised radiator

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=24660
Printed Date: 12 Jul 2025 at 8:46am
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Topic: B non pressurised radiator

Posted By: wbecker
Subject: B non pressurised radiator
Date Posted: 25 Jan 2011 at 4:47pm

Does anyone know what years they used the unpressureised radiator with the gas tank type cap on it, on the B?

Thanks, Bill B

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Allis B, IB, Low B, G, D10, JD M, 8KCAB, C152

Replies:

Posted By: GlenninPA
Date Posted: 25 Jan 2011 at 7:45pm

1937-1942 used unpressurized radiator.

Actually, in 1942, at serial# 61223, they started using the pressurized version....

Only 178 1942 B's had a pressurized radiator....

Posted By: john2189
Date Posted: 25 Jan 2011 at 10:59pm

what is the differance in the non pressure and pressure radiators? I have a 42 serial 56xxx and 45 and they look identical. would it hurt if it had a pressure cap on a non pressure radiator ?

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'41 Allis B
'45 Allis B
'49 Farmall Cub
'72 IH Cub

Posted By: pumpkin man
Date Posted: 25 Jan 2011 at 11:27pm

the filler neck is differnt [non pressure-the cap locks are on the inside of the filler [like the gas tank] same type of cap but not vented [pressure type-cap locks are on the outside of the filler neck the cap has a spring and rubber seat they come in psi. rateings. tractors look the same -radiators differnt

Posted By: swit
Date Posted: 26 Jan 2011 at 7:31am

so what would be a all around thermatat to run in a b since mine never gets hot.maybe a 180

Posted By: pumpkin man
Date Posted: 26 Jan 2011 at 10:40am

try one may be all right depends how hard you work it in hot weather rember its only a 2 gallon cooling sy,m.