SAE bell housing size pattern
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=191437
Printed Date: 21 Jun 2025 at 7:42am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: SAE bell housing size pattern
Posted By: OldSchoolRecovery
Subject: SAE bell housing size pattern
Date Posted: 23 Oct 2022 at 8:52pm
|
All, Does anyone know the SAE pattern bell housing size for the 3500A. ?? #1, #2 or #3 or something different. I have been looking for the last two nights on the innerweb without much luck... Thanks in advance, Carl ------------- 1942 Farmall H 1940 Allis B 1944 Allis B 1945 2N 1947 8N 1948 8N 1951 8N 1949 JD M 1951 JD A 1951 JD AW 1951 WD 1952 Allis D Grader 1957 D14 1958 D17 1961 Case 440L 1963 IH Lo Cub< |
Replies:
Posted By: im4racin
Date Posted: 23 Oct 2022 at 9:06pm
| Do you have a housing that you can measure or have an application you are looking for a specific size housing for? There are probably a couple different housings based on what the engine was used in. Generators are usually bigger than truck applications. |
Posted By: OldSchoolRecovery
Date Posted: 23 Oct 2022 at 9:15pm
|
Maybe I am asking the wrong question... What is the bolt pattern on the back of the block? From your answer, I can assume that there are different bells that bolt to the back of the block. And those different bells have different size (SAE pattern). Is that correct? Thanks, Carl ------------- 1942 Farmall H 1940 Allis B 1944 Allis B 1945 2N 1947 8N 1948 8N 1951 8N 1949 JD M 1951 JD A 1951 JD AW 1951 WD 1952 Allis D Grader 1957 D14 1958 D17 1961 Case 440L 1963 IH Lo Cub< |
Posted By: OldSchoolRecovery
Date Posted: 23 Oct 2022 at 10:49pm
|
Thanks, I figured it out. Will have to see what I have at that time. I was thinking the housing was part of the block, not really, but like a part of the block that was the same in all situations. Now I see there are many different sizes. For simplicity sake, I will stick with what is on the engine as It comes with flywheel, ring gear and started that work together. One I can measure, than I will know what SAE # and I can go with that. Thanks, Carl ------------- 1942 Farmall H 1940 Allis B 1944 Allis B 1945 2N 1947 8N 1948 8N 1951 8N 1949 JD M 1951 JD A 1951 JD AW 1951 WD 1952 Allis D Grader 1957 D14 1958 D17 1961 Case 440L 1963 IH Lo Cub< |
Posted By: Codger
Date Posted: 24 Oct 2022 at 5:56am
| I have a chart with the dimensions and mating flywheel sizes on my desktop computer. I'll post it up once finished with harvest tomorrow. |
Posted By: Joe(TX)
Date Posted: 24 Oct 2022 at 1:10pm
|
https://www.sbmar.com/articles/understanding-bellhousing-and-flywheel-measurements/" rel="nofollow - Understanding SAE Bellhousing and Flywheel Measurements - Seaboard Marine (sbmar.com) ------------- 1970 190XT, 1973 200, 1962 D-19 Diesel, 1979 7010, 1957 WD45, 1950 WD, 1961 D17, Speed Patrol, D14, All crop 66 big bin, 180 diesel, 1970 170 diesel, FP80 forklift. Gleaner A |
Posted By: orangereborn
Date Posted: 24 Oct 2022 at 3:01pm
Joe...Thanks for posting that info....Dale |
Joe(TX) wrote:Posted By: OldSchoolRecovery
Date Posted: 24 Oct 2022 at 4:36pm
|
I have that chart or page in my folder on my computer. Thanks for posting. Like I said before, I haven't broken the engine from the alternator yet, but from what I read so-far, on some inner-web forums, they state the MEP 006A gen set is a SAE #1. However, I have a cummins sitting open that is a #1 and the Allis looks a bit smaller. I might be able to get an outside measurement that I may be able to guesstimate for now. I would like the Allis to mate to a GM Turbo 400 transmission. An Allison would probably be a lot easier, but I want no electronics, etc., and I no less than nothing about Allisons, but I can probably rebuilt a 400 in the dark.. Anyway, we proceed, Carl ------------- 1942 Farmall H 1940 Allis B 1944 Allis B 1945 2N 1947 8N 1948 8N 1951 8N 1949 JD M 1951 JD A 1951 JD AW 1951 WD 1952 Allis D Grader 1957 D14 1958 D17 1961 Case 440L 1963 IH Lo Cub< |
Posted By: im4racin
Date Posted: 24 Oct 2022 at 6:10pm
| Go Allison. Look for early 90s school bus with 6bt. Simple cable hook up to inj pump is all it needs. |
Posted By: OldSchoolRecovery
Date Posted: 24 Oct 2022 at 6:52pm
|
Now I am trying to find peak torque for the 3500A ???, which seams like unobtainable information. The Allison MT-643 has a torque rating of 460. Hp rating of 250, which would be perfect, in my opinion. The innerweb is not like it used to be... Back in the day, you had to try to go down the rabbit hole, Just sayin, Thanks, Carl
------------- 1942 Farmall H 1940 Allis B 1944 Allis B 1945 2N 1947 8N 1948 8N 1951 8N 1949 JD M 1951 JD A 1951 JD AW 1951 WD 1952 Allis D Grader 1957 D14 1958 D17 1961 Case 440L 1963 IH Lo Cub< |
Posted By: AC7060IL
Date Posted: 24 Oct 2022 at 10:48pm
|
426 torque question has been discussed before on here. This is a weblink to an older post. https://allischalmers.com/FORUM/426-670t-engine-torque_topic190850.html" rel="nofollow - https://allischalmers.com/FORUM/426-670t-engine-torque_topic190850.html |
Posted By: Gary(WI)
Date Posted: 25 Oct 2022 at 6:21am
| I have a sae bellhousing flywheel and starter for a 426 if anyone is looking 250 for everything |
Posted By: OldSchoolRecovery
Date Posted: 26 Oct 2022 at 12:43pm
|
I am 95% positive the housing is a SAE #1. Rough measurement and its the same my Cummins, which I did measure as a #1. Will have to wait to break it in half to see what size flywheel it has. The bell housing # is the rear engine mount and though wide, it will work, especially if I can get the #1 bell to a automatic transmission. I do know that they make #1 to #2 (#3 and #4 also) adapters, but then spacing would have to be addressed. I did leave it outside closest to the shop door, so if I run out of things to do, I can fork it in and work on it, but most likely, and next summer project. Thanks, Carl ------------- 1942 Farmall H 1940 Allis B 1944 Allis B 1945 2N 1947 8N 1948 8N 1951 8N 1949 JD M 1951 JD A 1951 JD AW 1951 WD 1952 Allis D Grader 1957 D14 1958 D17 1961 Case 440L 1963 IH Lo Cub< |
Posted By: kblackav8or
Date Posted: 15 Feb 2023 at 10:43pm
Do you still have that and what you might want for it? |