bearing sizes ?
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=47823
Printed Date: 29 Aug 2025 at 1:38am
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Topic: bearing sizes ?
Posted By: allismanamp
Subject: bearing sizes ?
Date Posted: 24 Mar 2012 at 9:28am
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just woke up from a long night of splitting my first c allis and taking the engine apart it was really neat someone put a motor allis motor out of something it is a 3 3/8 bore and i believe a 125? cubic inch but the thing is the block has had a hole drilled and tapped in the side of it to allow for a braket to mount a generator on it i would have thought all allis blocks had holes for generator brakets funny thing. well any ways me and dad miked the crank out and it was 1.2185 on the main bearings and 1.9275 on the rod bearings the center main bearing was the colprit for the knock in the engine far as i can tell the babit is chewed up terrible and a good find also was that the oil ring on the number 1 cylinder was broke when i popped it out of the sleeve that made me very happy. The rods and pistins and rings all look really good and tight yet and the sleeves have no groves at all wore But the bad news is the Crank i dont know what to do? Is there bearings that are availeble at under sized .040 for the main bearings. they want 100 bucks to grind it down but then i still need new bearings dont know what they cost the other route is trying to buy a good used crank with matching bearings that are good yet but i dont know what that cost ether anyone have some numbers to get a idea of what i should do next????? thanks for anyone that may help me out ~AMP~  ------------- ~AMP~ |
Replies:
Posted By: Chalmersbob
Date Posted: 24 Mar 2012 at 9:35pm
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.40 bearings are available, but usually come in sets at about $80.00 - $100.00.
Did you check the crank for out of round?
You might be better off if you just have the crank gound, then you will know what you have. Bob
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Posted By: CTuckerNWIL
Date Posted: 24 Mar 2012 at 11:05pm
Nope, the early B's with the BE engine did not have bosses for generator brackets cause they were hand crank only and didn't have a battery or generator. I would bet you have a BE engine block. Look for the engine number on a rectangle pad top center of bell housing flange, should start with BE ------------- 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 |
allismanamp wrote: