WD Engine - Main Bearing Caps Matching
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=191146
Printed Date: 17 Nov 2024 at 7:57pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: WD Engine - Main Bearing Caps Matching
Posted By: wjohn
Subject: WD Engine - Main Bearing Caps Matching
Date Posted: 09 Oct 2022 at 11:58am
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On a WD (and I assume at least WC as well), do you need to keep the main bearing caps that were original to the block, with that specific block? Or, can you swap main bearing caps from one block to another without any issues? ------------- 1939 B, 1940 B, 1941 WC, 1951 WD, 1952 CA, 1956 WD-45 |
Replies:
Posted By: steve(ill)
Date Posted: 09 Oct 2022 at 12:40pm
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Would be best to keep original.. If you HAVE to change out, i would bolt the cap on empty and check for any LIP or overlap at the mating surfaces... You may have to mix and match to get a better FIT. ------------- Like them all, but love the "B"s. |
Posted By: DrAllis
Date Posted: 09 Oct 2022 at 2:19pm
| If someone gives you a WC/WD block without main caps, it's too expensive to line-bore it even if you had main caps from another block. I'm just sayin...... |
Posted By: wjohn
Date Posted: 09 Oct 2022 at 3:07pm
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Got it - avoid mixing caps and blocks if they didn't come together from the factory. Thanks guys. ------------- 1939 B, 1940 B, 1941 WC, 1951 WD, 1952 CA, 1956 WD-45 |
Posted By: den/southern illinoi
Date Posted: 09 Oct 2022 at 4:55pm
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I know I always keep the caps in the same location as they were. Den ------------- Own 4 wheel 20, 2-5015, 5020 and associated equipment and 2 electric forklifts. |
Posted By: steve(ill)
Date Posted: 09 Oct 2022 at 6:09pm
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If you switch caps with another motor, it is POSSIBLE that the bore in the cap and the bock could be miss matched by .005 inch.. and you would have bearing interference with the crank when you install... of course it could be miss matched .001 and would probably work...... Thats why it is not a good idea to mix and match.. but if you dont have the original caps, you need to check the alignment of the two half bores and make sure the offset is very minimal.
exaggerated it could look like this...  ------------- Like them all, but love the "B"s. |