B liner O.D.
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=143680
Printed Date: 19 Oct 2025 at 1:39pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: B liner O.D.
Posted By: littlemarv
Subject: B liner O.D.
Date Posted: 21 Oct 2017 at 8:45am
Can someone with a calipers and a liner out of a B engine do me a favor? I need to know the O.D. of the bottom of the liner. Thanks much.
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The mechanic always wins.
B91131, WC23065, WD89101, CA29479, B1, Early B10, HB212, 416H
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Replies:
Posted By: SteveC(NS)
Date Posted: 21 Oct 2017 at 11:20am
Marv, I measured a brand new liner as 3.678 at the bottom and 3.712 up just before where the O-Rings go.
I also checked a used (but still usable) liner and it measured the same.
Hope that helps.
Steve
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Posted By: littlemarv
Date Posted: 21 Oct 2017 at 2:26pm
Perfect, thanks a lot!
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The mechanic always wins.
B91131, WC23065, WD89101, CA29479, B1, Early B10, HB212, 416H
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Posted By: chaskaduo
Date Posted: 21 Oct 2017 at 4:01pm
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Would these numbers be the same for my 1938 B, 1.9ltr - 116.1ci engine?
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Posted By: Gary
Date Posted: 21 Oct 2017 at 4:14pm
Prior to 1943 116 cu.in had 3.25 dia. pistons, 3.5" stroke
1943 and later 125 cu.in had 3.375 dia. pistons, 3.5" stroke
Not sure about the liner O/D's.
Gary
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Posted By: chaskaduo
Date Posted: 21 Oct 2017 at 4:53pm
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I was thinking I would like to cut a sleeve puller disk.
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Posted By: littlemarv
Date Posted: 21 Oct 2017 at 5:16pm
That's what I need the OD for. I gave a machinist pal some scrap metal to make pullers for both a WD sleeve, and a B sleeve. But, the other day I put the liners in the B and never measured the bottom, and it's impossible to get to now!
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The mechanic always wins.
B91131, WC23065, WD89101, CA29479, B1, Early B10, HB212, 416H
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Posted By: steve(ill)
Date Posted: 21 Oct 2017 at 8:58pm
you can take NEW oversize bore sleeves and put in a 116 inch OR 125 inch block....... so the blocks have the same bore for any sleeve. ... 3 1/4 , 3 3/8 , 3 7/16 overbore
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Like them all, but love the "B"s.
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Posted By: chaskaduo
Date Posted: 21 Oct 2017 at 10:47pm
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What would be the recommended disk diameter be for pulling 116ci B sleeves?
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Posted By: Gerald J.
Date Posted: 22 Oct 2017 at 9:33am
The best pulling disk would have a shoulder turned on it to match the sleeve bore so it stays centered and the outside diameter less than the outside diameter of the sleeve.
Gerald J.
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