Farm Equipment - Just noticed this! Need some engine number help.

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Just noticed this! Need some engine number help.

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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=10163
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Topic: Just noticed this! Need some engine number help.

Posted By: DREAM
Subject: Just noticed this! Need some engine number help.
Date Posted: 27 Mar 2010 at 8:48pm

I could have sworn I checked the engine number on my C right after I got it, but apparently not. I was noticing as I was cutting the fuel off that it had a paint run right over it. I got the scraper and wire brush out, cleaned everything up, and lo-and-behold, ITS A DISTILLATE ENGINE! Never thought that. Remember looking at an engine number, it must have been on my sons' C(his is gas.) engine #BE 62638K. Tractor is a 1946 mod. Wouldn't it have a CE prefix? Got a sneaking feeling it may have an older B engine(116 CI). The tractor has a power unit hood on it, could that engine possibly have come from a power unit? The hood on a B is the same as a C right? Mine has an extra hole in front of the tractor gas tank openning, the hole for the starter tank, and other holes for the exhaust pipe braces. Thanks for any help.

Replies:

Posted By: DREAM
Date Posted: 27 Mar 2010 at 9:08pm

Bump.

Posted By: Jeff Z. NY
Date Posted: 27 Mar 2010 at 9:17pm

Sounds like a B 116 kerosene engine.

What is the casting number AM1234-XX ?

Posted By: DREAM
Date Posted: 27 Mar 2010 at 9:32pm

I'll get back to you. Thanks for the reply.

Posted By: Jeff Z. NY
Date Posted: 27 Mar 2010 at 9:36pm

What make carburetor and number ?

Posted By: DREAM
Date Posted: 27 Mar 2010 at 9:38pm

Zenith. No number visible. Carb may not match engine anyway. Let me run out and get casting # from engine. Be right back.

Posted By: Jeff Z. NY
Date Posted: 27 Mar 2010 at 9:44pm

The carburetor numbers should be on top on a round brass tag. Can be hard to see when the carburetor is on the engine.

You may be lucky and have the original carburetor. #9635 #9805 #9706

Is the BE number you posted from the engine in question?

Posted By: DREAM
Date Posted: 27 Mar 2010 at 9:52pm

Casting# is AM-2916-13. No tag on carb. Had it off when I cleaned it out last April. Yes, BE# is from the engine in my C, which also has a kerosene power unit hood on it. This tractor has apparently been put together from many different sources through the years. Runs good though.

Posted By: DREAM
Date Posted: 27 Mar 2010 at 9:55pm

Casting number from my sons' 1949 C is AM-2916-25. I'm guessing last two digits have something to do with year of manufacture?

Posted By: Jeff Z. NY
Date Posted: 27 Mar 2010 at 9:58pm

The casting number chart I have which states to be approx year made shows your number in the 1941 group and the serial number in the 1943 range so who knows.

I would just say an early 1940 BE 116ci kerosene engine.

Posted By: DREAM
Date Posted: 27 Mar 2010 at 10:09pm

Thanks for the help Jeff. I wonder if anyone would be interested in a trade, or just buying this engine outright. I would really rather have a CE engine for the extra cubes, and a gas engine for a little higher compression. Tractor seemed a little weak when I was pulling the disc harrow with extra weight last summer. Block has a crack approximately 6" long behind the carb. Has been filled with JBweld, doesn't leak any water. No water in oil. Oil pressure runs high on the gauge, and jumps up as soon as she fires off. Needs a new manifold. I brazed the old one to get by. Has new water pump, temp gauge glass is cracked, cant read gauge face, but gauge works. Temp seems to run in the left half of the gauge. Doesn't fluctuate, even when loaded hard in the August heat. Would be a good engine. I just would rather have the right engine for the tractor. Which reminds me, anyone need a hood for a kerosene power unit? Will trade for C hood or sell outright.

Posted By: Ed in TX
Date Posted: 27 Mar 2010 at 11:48pm

I have a 1941 B that I'm working on. It has a starter tank in the hood but it's not hooked up. Is the engine different than a straight gas tractor? If so can I tell by the engine serial number? Thanks.

Posted By: Ken in Texas
Date Posted: 28 Mar 2010 at 2:25am

It's like the guy said. His C engine SN is a BE prefix with a K behind the number (G is Gas) indicating it was not the CE engine used in the C. If the engine was overhauled and fitted with new sleeves and pistons, it is likely they were 3 3/8 standard CE size which would make it a BE on the outside and a CE on the inside.

The 2 fuel engines had different manifolds. I presume to vaporize kerosene at a higher temp. The two fuel manifold is cast with a opening around the riser tube of the intake and is provided with a shield which partially covers the intake and exhaust parts of the manifold. The Gas manifold is cast solid around the riser tube.

Engines that were normally handcranked like 60 All Crop engines were equiped with a fresh air cock in the manifold above the carb. By opening the cock to allow entry of fresh air above the carb the tendency of the engine flooding was reduced when cranking a hot engine.

The parts books show factory motor piston kits available in 6.2:1 Aluminum for Gas or Gas/Kerosene over 6000' alt. - 5.2:1 Al. for Kerosene at high alt. - 4.7:1 cast iron for Kerosene under 3000' -and a 4.75:1 Al for Kerosene. Good luck figuring out what compression ratio pistons you have in what you got.

Service manuals refer to 5.75:1Gas - 4.75:1Kerosene in the CE engines. and 4.92:1 Gas - 4.67:1 Kerosene in BE engines. In B/C engines Pressures are CE Gas 115 lbs-CE low octane 99lbs. BE Gas 94lbs low octane 84lbs.

Posted By: DREAM
Date Posted: 28 Mar 2010 at 9:15pm

There's honestly no telling what I have until I pull everything down and get the mic. and calipers hold of it. I do know the engine block is from a kerosene B, but the manifold that was on it was for gas. The manifold I have on it right now (robbed from my sons' 49 C) has the brass ballcock valve in the intake above the carb. I don't think it was original to his engine either. Tractor has had a kerosene power unit hood put on it. Lord only knows where that came from. If this tractor could talk, it would probably take all day to explain where all of its' different components came from. LOL!