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11-03-2014, 02:28 PM | #21 |
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Location: southeastern Michigan
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Re: Is this a '37 engine?
The raised deck was adopted as a cost savings (less grinding) as a running change in August, 1940 according to the engineering release forms on file at the Benson Ford Research Center. The subject block is likely a service part produced in late 1940 or 1941 or thereafter.
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11-03-2014, 02:35 PM | #22 |
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Re: Is this a '37 engine?
Hey Chris, That block is what I could use to start another build. I will stop by at your secret stash barn and pick it up when I am in Pictou. LOL John
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11-03-2014, 03:56 PM | #23 | |
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Re: Is this a '37 engine?
Quote:
39-40 have long crank and pulley hub extends 1 1/4" out from pulley sheave. Check to see if rod bearings are flanged (1938) or flat-- 39 and up. Canadian blocks should be cast coded C81A on deck --front of head but check bell housing too. Not sure if US block features can be used to ID year 41-42 on Canadian blocks , 81s or 99s . There are variations for military, export, etc. on Canadian blocks. Look and post what you find Gene Tulsa Last edited by G32; 11-03-2014 at 04:07 PM. Reason: Rod bearing ? |
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11-03-2014, 05:38 PM | #24 | |
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Re: Is this a '37 engine?
Quote:
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11-03-2014, 06:27 PM | #25 |
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Re: Is this a '37 engine?
37 - 38 had smaller main journals on the crank. The 59 crank could be ground to the smaller specs.
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11-03-2014, 06:41 PM | #26 |
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Re: Is this a '37 engine?
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The Canadians produced only 24 stud engines during WWII, I think, both '39 type and 1942 type. The British produced the 1937 type all through the war and then on civilian vehicles after the war. They made some with longer crank snouts, as a few '39 type cars with this engine were assembled in England before war shut down civilian cars, and I would guess these were also used in bren carriers to drive all the pulleys and big fans. I just received a picture of the front of a long crank 37 from an Australian...since they used Canadian motors, it must have reached the antipodes in some sort of british military vehicle or generator. |
11-03-2014, 08:25 PM | #27 |
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Re: Is this a '37 engine?
Bruce,
That picture i posted above with the ally heads and edelbrock manifold is the entire engine of the photo i sent you the other day. Also, my engine was originally in a half cut '36 chassis and it was used to power a saw mill, then a welder.. until 20 odd years ago where it sat in the chassis unused ever since until i got it about 2 years ago. I have no idea if it was ever a running car, but apparently it was chopped up and turned into the saw mill thing either during the war, or not long after. |
11-03-2014, 08:28 PM | #28 |
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Re: Is this a '37 engine?
Here is the picture of the front of mine that i sent Bruce the other day for an ID on the crank, as i'd heard mention of this "long" and "short" crank variates. Mine has as pictured, a twin pulley crank and Bruce believes it to be either a super duper rare long crank, or it has some form of adapter thingy. The water pumps are also twin pulley, however i will likely use a single pulley on the water pumps..
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11-03-2014, 08:50 PM | #29 |
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Re: Is this a '37 engine?
The "long" indicator on that one is the snout on pulley and the nut way out there. The reason I mentioned adapter is that I once bought a late pulley, '42-8 type, and found it to have an obstruction in there...when I pounded it out, it turned out to be a male.female threaded adapter that had extended a crank by the difference between normal long and short!
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11-03-2014, 09:05 PM | #30 |
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Re: Is this a '37 engine?
By the way...the normal '37-8 21 stud crank is the same as 1936 LB insert main engines AND the oddball 1938 only 24 stud short crank engine. All other 24 stud engines have the main size and spacing same as all '39-53. This later crank has been transplanted into the '37s for the Merc stroke with some machine work...Ron has done this and described the process. This allows, with some risk on the boring, a 255 21 stud.
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