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  1. #1

    New member from New Hampshire

    Hi everyone; I finally did it!
    Ive wanted a Willys ever since I saw the adds in the back of the magazines for Jeeps in a Crate for $50 back in the late Fifties. Guess what, I never did find one but I picked up a 1951 or 52 CJ-3A. Shes tired and shes going to need work but shes all mine.
    The serial number on the firewall reads 452-GB1 35236. Now the engine block casting block number is 638632 W6 A N1-CR-NI. There is a number stamped in front of the block number that is stamped 6-6
    Now the number Im having problems with is the engine serial number. Im reading it as M(B? )615000. Between the M (B?) and the numerals is a punch mark. What do I have? The guy I bought it from said the engine wouldnt turn and hed been soaking the four cylinders with kerosene with the kerosene going through #1,2 and 3. When I got it home I cleaned out number 4 and it looks like someone had used a hammer and block of wood to break it free.
    Sorry for being long winded but Im excited to finally have one, itll be a work in progress. Thanks

  2. #2
    Super Moderator bmorgil's Avatar
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    Hello Brian, we love the jeep in a box! https://willysjeepforum.kaiserwillys...ighlight=crate Take a lot of pictures of what you have. Take pictures is a broken record here. We always ask for hem. Take some close ups of the serial numbers you are speaking of. Take some shots of the motor apart.

    Anything is possible in early CJ3's They are a crossover from the 2A and the MB. Many parts were being used up from Trucks and earlier Jeeps that were phased out as the wars "ended". Some will tell you everything was perfect and all the parts matched originally, this is far from true in the crossover and lean economy years. The Jeep Fest in Toledo has shed tremendous light on early Willys production as there are still a very few left who actually worked there in the 40's an 50's. Some neat stories are heard in the parking lots and show floors. Those fellow's have the last of the history with them. You will find a lot of info here on the Tech pages.

    https://willysjeepforum.kaiserwillys...res-amp-Models
    Last edited by bmorgil; 12-15-2020 at 07:43 AM.

  3. #3
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  4. #4
    Super Moderator bmorgil's Avatar
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    That is a great start! Nice Jeep. The motor looks good from over here! Seriously at first glance I like it. The studs are still there. Those are usually discarded (wrongly) the first time someone tears into it. That is usually a path to trouble. Yours looks good. The bores look like they are not to bad, nothing a bore job wont fix. The valves look like they are collecting soot, a good thing as opposed to steam cleaned or burned up. It looks like it was running when it was put down. I think it will be a good one. It looks like they cracked that piston. That will cause it to expand and get caught in the bore even worse. At this point I would pull the motor and drive it back up and out the top. I wouldn't get to brutal with it. It looks to good to risk damage to the block. Over bore max is .080" You would hate to put a deep scratch in that cylinder.
    Last edited by bmorgil; 12-16-2020 at 01:20 PM.

  5. #5
    Thanks for getting back to me on the engine. The guy I bought it from said he was told it was running when it was parked. He bought several weeks ago and it was delivered to him on a ramp truck. He put a battery in it and fueled it up. When he went to start it the engine went clunk. He pulled the starter and the flywheel wouldnt move. He pulled the head and put kerosene in the cylinders and number 4 did not seep down. He told me he was going to try and tow it and pop the clutch but the transmission is stuck in neutral. Im fortunate there as friend of mine has a 1954 Jeep truck that he just finished rebuilding the T90 transmission and told me he would help me figure out whats going on with it.

    I know I might have bought a pig in a poke but Im in this for the long haul. What Id like to do is pull the engine and put the Jeep outside for the winter covered with a tarp. Hopefully come spring I can pull the body off and start from the ground up and get it back to running condition.

    Would anyone have any ideas on the age of the motor based on the serial numbers? In front of the number is stamped 6-6 then M?615000. Thanks again for all your help guys.3503DAE4-6876-455D-8354-6A3E21560084.jpg
    6312CCC6-42E2-4C85-BD83-D9477848F147.jpg
    You have to go out,
    You dont have to come back
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    United States Lifesaving Service

  6. #6
    Super Moderator gmwillys's Avatar
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    Welcome BrianAnthony,

    A $50 Crate of Jeep would be nice to stumble across, (there are still rumors that swirl around that there are still a few in a warehouse that are awaiting discovery) but I'm fairly certain that the rumors are just that.

    Bmorgil has already welcomed you with the Jeep restorers motto.... Never say Willys never did anything. Records were atrocious, and models blended from one year to a next until the surplus of parts were consumed. In short, you could own a wagon that was delivered two years after the official end of the model year was over.

  7. #7
    Senior Member scoutingranch's Avatar
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    I needs pictures...
    "Options are for girls"

  8. #8
    Super Moderator LarrBeard's Avatar
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    Serial Number

    Quote Originally Posted by BrianAnthony View Post
    The serial number on the firewall reads 452-GB1 35236.

    According to our most reliable serial number list, 452 GB1 was the serial prefix for the 1952 CJ 3 The serial sequence started at 10001 and ran through 38652 for a total of 29652 vehicles. This makes your CJ a late 52 production vehicle. In '53 the prefix went to 453 and in 51 it was 451, so that pretty well ties down the year of manufacture.

    The engine number on the water pump boss is the number that matters most.

    Gotta have pictures though ...

  9. #9
    3876F083-CAAD-4F3E-949F-AC2C86A78732.jpg
    LarrBeard; the only stamp on the boss is the number 2; the rest ground off?
    The engine serial number begins with the letter M then maybe the letter B?
    9E536782-889B-41AB-B30E-323E4450D1B8.jpg
    Last edited by BrianAnthony; 12-15-2020 at 09:25 PM.
    You have to go out,
    You dont have to come back
    Keeper Patrick Etheridge, 1899
    United States Lifesaving Service

  10. #10
    Senior Member
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    You will get a lot of help as I did from the experts here for your Jeep. Keep us posted.

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