Farm Equipment - Allis b running temp.

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Allis b running temp.

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=209213
Printed Date: 04 Feb 2026 at 6:35am
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Topic: Allis b running temp.

Posted By: Ttague39B
Subject: Allis b running temp.
Date Posted: 03 Dec 2025 at 3:42pm

Hi, I was wondering what the normal operating temp was for a early model B (1939) i read that it shouldn't run lower then 190 but mine constantly runs 170, its a Steiner gauge so it might just be inaccurate but i was just wondering what your guys opinions are. Thank you.

Replies:

Posted By: DSeries4
Date Posted: 03 Dec 2025 at 3:49pm

170 is fine. It's probably a 160 degree thermostat in it. Problems tend to arise when it gets too hot - not below 190.

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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

Posted By: PaulB
Date Posted: 03 Dec 2025 at 7:38pm

with a 160 thermostat and no shutters or anything else blocking air flow, That's probably as high as it will ever get. and in the days of just having water or alcohol for antifreeze that's high enough.

The B,C & CA tractors have a very good cooling system if nothing is blocked. I just put 180 thermostats in everything with permanent anti-freeze and all is good.

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Real pullers don't have speed limits.
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