Farm Equipment - draining trannie oil on a B

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draining trannie oil on a B

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=47356
Printed Date: 20 Aug 2025 at 8:48pm
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Topic: draining trannie oil on a B

Posted By: didgood
Subject: draining trannie oil on a B
Date Posted: 15 Mar 2012 at 7:48pm

Just changed the motor and trannie oil in my B. Before I pulled the plugs on the transmission and pto housing I checked the oil level and it was ok. I pulled the front plug first and the pto plug second after the oil was mostly drained. I got very little oil out of the back plug. Is that normal?

Thanks

Replies:

Posted By: Ted in NE-OH
Date Posted: 15 Mar 2012 at 7:57pm

Yes that is normal. There are 3 plugs, don't forget the one under the PTO.

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CA, WD, C, 3 Bs, 2 Gs, WC, I-400, 914

Posted By: steve(ill)
Date Posted: 15 Mar 2012 at 8:02pm

The PTO housing has a gasket on it that goes half way up the cover and traps about a cup full in the PTO housing area so the pump always has oil if you are on a downward slope. The front or center plugs will do most of the draining.

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Like them all, but love the "B"s.

Posted By: didgood
Date Posted: 15 Mar 2012 at 8:48pm

Nuts, I thought there were three. I missed one in the front somewhere. I got the one in the center of the transmission housing and the one on the pto housing. Where is the other one up front?