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SAE bell housing size pattern
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OldSchoolRecovery View Drop Down
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Joined: 06 Nov 2015
Location: Eagle River, WI
Points: 301 		Post Options Post Options   Thanks (0) Thanks(0)   Quote OldSchoolRecovery Quote  Post ReplyReply Direct Link To This Post Topic: SAE bell housing size pattern
    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
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1951 JD AW
1951 WD
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1957 D14
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Joined: 12 Jun 2017
Location: Garrison ND
Points: 1003 		Post Options Post Options   Thanks (0) Thanks(0)   Quote im4racin Quote  Post ReplyReply Direct Link To This Post 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.
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Joined: 06 Nov 2015
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Points: 301 		Post Options Post Options   Thanks (0) Thanks(0)   Quote OldSchoolRecovery Quote  Post ReplyReply Direct Link To This Post 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<
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OldSchoolRecovery View Drop Down
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Joined: 06 Nov 2015
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Points: 301 		Post Options Post Options   Thanks (0) Thanks(0)   Quote OldSchoolRecovery Quote  Post ReplyReply Direct Link To This Post 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<
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Joined: 23 Dec 2020
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Points: 2200 		Post Options Post Options   Thanks (1) Thanks(1)   Quote Codger Quote  Post ReplyReply Direct Link To This Post 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. 
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Joe(TX) View Drop Down
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Joined: 11 Sep 2009
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Points: 1682 		Post Options Post Options   Thanks (1) Thanks(1)   Quote Joe(TX) Quote  Post ReplyReply Direct Link To This Post Posted: 24 Oct 2022 at 1:10pm
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
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Joined: 12 Sep 2009
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Points: 1455 		Post Options Post Options   Thanks (0) Thanks(0)   Quote orangereborn Quote  Post ReplyReply Direct Link To This Post Posted: 24 Oct 2022 at 3:01pm
Originally posted by Joe(TX) Joe(TX) wrote:

Understanding SAE Bellhousing and Flywheel Measurements - Seaboard Marine (sbmar.com)
****
Joe...Thanks for posting that info....Dale
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Joined: 06 Nov 2015
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Points: 301 		Post Options Post Options   Thanks (0) Thanks(0)   Quote OldSchoolRecovery Quote  Post ReplyReply Direct Link To This Post 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<
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Joined: 12 Jun 2017
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Points: 1003 		Post Options Post Options   Thanks (1) Thanks(1)   Quote im4racin Quote  Post ReplyReply Direct Link To This Post 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. 
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Joined: 06 Nov 2015
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Points: 301 		Post Options Post Options   Thanks (0) Thanks(0)   Quote OldSchoolRecovery Quote  Post ReplyReply Direct Link To This Post 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


Edited by OldSchoolRecovery - 24 Oct 2022 at 6:54pm
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<
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Joined: 19 Aug 2012
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Points: 3466 		Post Options Post Options   Thanks (1) Thanks(1)   Quote AC7060IL Quote  Post ReplyReply Direct Link To This Post 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
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Gary(WI) View Drop Down
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I have a sae bellhousing flywheel and starter for a 426 if anyone is looking 250 for everything
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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<
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Joined: 05 Nov 2018
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Points: 80 		Post Options Post Options   Thanks (0) Thanks(0)   Quote kblackav8or Quote  Post ReplyReply Direct Link To This Post Posted: 15 Feb 2023 at 10:43pm
Originally posted by Gary(WI) Gary(WI) wrote:

I have a sae bellhousing flywheel and starter for a 426 if anyone is looking 250 for everything

Do you still have that and what you might want for it?  
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