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MB Motor In CJ2?

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Beach Bum View Drop Down
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    Posted: 26 Jan. 2023 at 12:57pm
Back when I first got my ‘48 (and didn’t know better) I bought a running MB motor as a back up. I am seriously considering installing it now if it wouldn’t require too much modification. I know that it’s chain drive can not gear but that doesn’t matter, it’s about the motor mounts and whatever else would be required to make it a drop in. Before anybody says “sell it and buy a 2A motor” I have to confess that it has the usual crack under the distributor so it’s pretty much worthless even though it runs good.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Oldpappy Quote  Post ReplyReply Direct Link To This Post Posted: 26 Jan. 2023 at 1:33pm
Not worthless by a long shot, that common crack can be fixed several ways.

The engine mounts of a MB engine and a CJ2A are the same, and no modifications are needed to drop it in your Jeep.
If you can't get there in a Jeep you don't need to be there!
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Post Options Post Options   Thanks (0) Thanks(0)   Quote WellFedHobo Quote  Post ReplyReply Direct Link To This Post Posted: 26 Jan. 2023 at 1:39pm
Definitely a drop in swap. Cracks can be fixed in many cases. A lot of people are purists and want MB engines put back into MB restorations. I have an M38 engine in my 2A. Works fine. Run it.
Brad
1948 CJ2A #158011 "Sunk Cost Fallacy"
1945 T3-C #1431
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Beach Bum Quote  Post ReplyReply Direct Link To This Post Posted: 26 Jan. 2023 at 2:18pm
By worthless I did mean I think it’s a throw away, I mean I don’t think that I could sell it for much. The crack doesn’t concern me much. This motor was sold to me by an unscrupulous dirt bag whom I foolishly trusted. But that’s water under the bridge some several years ago.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote IRQVET Quote  Post ReplyReply Direct Link To This Post Posted: 26 Jan. 2023 at 2:50pm
My CJ has an amphibious GPA motor, screw it, swap it in. 
Dean
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Post Options Post Options   Thanks (0) Thanks(0)   Quote dasvis Quote  Post ReplyReply Direct Link To This Post Posted: 26 Jan. 2023 at 6:51pm
JB Weld it & run it. 
1947 CJ2A #88659 "Rat Patrol"
1953 CJ3A #453-GB1 11266 "Black Beauty"
1964 Thunderbird convertible
..... & one of them moves under it's own power!!
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 19Cargo42 Quote  Post ReplyReply Direct Link To This Post Posted: 26 Jan. 2023 at 7:02pm
Out of general curiosity, what day/year is the MB engine?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Beach Bum Quote  Post ReplyReply Direct Link To This Post Posted: 28 Jan. 2023 at 10:13pm
19, at the moment I am 200 miles away from that motor but I will be there next week. If you hit me up next week to remind me I’ll look. Thanks, Don
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 19Cargo42 Quote  Post ReplyReply Direct Link To This Post Posted: 28 Jan. 2023 at 10:56pm
Sounds good. Thanks.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Beach Bum Quote  Post ReplyReply Direct Link To This Post Posted: 05 Feb. 2023 at 1:19pm
If somebody will tell me where to find the build date on the MB motor I will get it for Cargo.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 19Cargo42 Quote  Post ReplyReply Direct Link To This Post Posted: 05 Feb. 2023 at 6:15pm
Thanks for your effort on this. The casting date is on the passenger side of the block, toward the rear under the starter motor. The assembly date is stamped on the flat surface of the block where the oil pan mates to the block. Unless the pan is off, you probably can’t see it.

This thread has some good reference photos: https://forums.g503.com/viewtopic.php?t=285955

Sincerely,

John
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Beach Bum Quote  Post ReplyReply Direct Link To This Post Posted: 06 Feb. 2023 at 11:42am
I wrote this down before I left town last night; on the passenger side cast in are the following numbers; 8-22  638632-W4 A NI-CR. On the drivers side right behind the fuel pump it has 383  3
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Beach Bum Quote  Post ReplyReply Direct Link To This Post Posted: 08 Feb. 2023 at 11:54am
What do those numbers tell you Cargo?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 19Cargo42 Quote  Post ReplyReply Direct Link To This Post Posted: 08 Feb. 2023 at 12:42pm
I’m presuming the 8/22 to be August 22, but I’m not certain if that would be ‘44, ‘45, or possibly even ‘46. Is there an MB or CJ serial number stamped on the boss behind the oil filter?
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