Farm Equipment - Some model B questions

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Some model B questions

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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=21877
Printed Date: 12 Feb 2025 at 12:55pm
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Topic: Some model B questions

Posted By: DonDittmar
Subject: Some model B questions
Date Posted: 06 Dec 2010 at 3:43pm

Guys I am reading the B manual right and the trans/diff/PTO/hydrualics all share the same sump and take 20w oil. I thought the trans and diff were seperate from the pto and hyd.

Also I have the engine tore down and the block is craked between the cylinders. Are you guys running them or should I try to find a used block.

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Experience is a fancy name for past mistakes. "Great moments are born from great opportunity"

1968 D15D,1962 D19D
Also 1965 Cub Loboy and 1958 JD 720 Diesel Pony Start

Replies:

Posted By: Bill Long
Date Posted: 06 Dec 2010 at 4:01pm

Yes, The model B rear, transmission, and PTO Hyd are all in one sump. When they were new we put 20W non detergent oil in them. Worked fine. However, I have heard very successful reports of trans hyd oil being used. Others will have to chime in for exact information. To prevent the oil from the hyd system to move to the front and rear when moving up or down hill there was a gasket dam between the pinion gear case and the PTO. Worked fine.

Take good care of my favorate.

Good Luck!

Bill Long

Posted By: Dave Richards (WV)
Date Posted: 06 Dec 2010 at 4:05pm

Don, you are too nice of a guy for me to make a crack about your craked block. LoL
Cracks between the cylinders are so common most consider them original equipment. Unless they look really bad, leave her be. On the B, the engine oil is separate and the trans, diff. and hydraulics share.

Posted By: Ted in NE-OH
Date Posted: 06 Dec 2010 at 4:08pm

Cracks between the cyclinders at the top is normal. Head gasket will seal to the top of the liners. I use hytran universal hydraulic fluid. No problems.

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

Posted By: CTuckerNWIL
Date Posted: 06 Dec 2010 at 4:11pm

If the crack is up top where the sleeve shoulders there is no problem running it as long as it is not shifted, one side higher than the other. If the cracks are down in the bottom where the o-rings seal, look for a different block.

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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: DonDittmar
Date Posted: 07 Dec 2010 at 6:02am

That was what I was after, thank you all

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Experience is a fancy name for past mistakes. "Great moments are born from great opportunity"

1968 D15D,1962 D19D
Also 1965 Cub Loboy and 1958 JD 720 Diesel Pony Start