Engine Number

bamaj · Member Joined: Sep 22, 2013 Posts: 107

I had the time today to do a little looking at my jeep and to start to fill out my survey. Here is a little of what I have found. Engine number is MD 104915 i have a prestolite generator 28amp the serial number for it appears to be 4484. I have an autolite distributor cover and the voltage regulator is DC electronics. As soon as I can I will send pictures and get the rest of the information on the survey. All of the data plates are missing so I have no idea of serial number or dod. I have grill that doesn't fold down I have the new style fenders and the catch for the passenger seat.the battery box lid is held down with a latch as opposed to the screws. Any date information you can give me will be greatly appreciated. Thanks Jeff

wesk · Posted: Fri Jul 06, 2018 7:52 pm Post subject:

Are you sure the engine # is MD104915? Could it be RMD 104915?
_________________
Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100

Mjeeps photo album: http://www.willysmjeeps.com/v2/modules.php?set_albumName=Wes-Knettle&op=modload&name=gallery&file=index&include=view_album.php

bamaj · Member Joined: Sep 22, 2013 Posts: 107

I could have missed the R I will recheck in the morning. I take it that's not a good number?

wesk · Posted: Fri Jul 06, 2018 8:45 pm Post subject:

It may be a bit high for your jeeps year. I just want to make sure it is not a Factory Replacement Engine (RMDXXXXXX)

Prestolite's serial number system combined a letter with a number in it's prefix. So for example if yours was 3K 4484 it would be a Mar (3) 1955 (K) generator.
_________________
Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100

Mjeeps photo album: http://www.willysmjeeps.com/v2/modules.php?set_albumName=Wes-Knettle&op=modload&name=gallery&file=index&include=view_album.php

bamaj · Member Joined: Sep 22, 2013 Posts: 107

bamaj · Member Joined: Sep 22, 2013 Posts: 107

bamaj · Member Joined: Sep 22, 2013 Posts: 107

wesk · Posted: Sun Jul 08, 2018 8:11 pm Post subject:

Looks like your generator is serial 4494 but that looks like a rebuilder's plate not the original Prestolite/Auto-Lite plate.

Here's an original plate.

Your engine casting # and casting date aren't much help verifying the serial.
_________________
Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100

Mjeeps photo album: http://www.willysmjeeps.com/v2/modules.php?set_albumName=Wes-Knettle&op=modload&name=gallery&file=index&include=view_album.php

bamaj · Member Joined: Sep 22, 2013 Posts: 107

bamaj · Member Joined: Sep 22, 2013 Posts: 107

bamaj · Member Joined: Sep 22, 2013 Posts: 107

Wes I don't see a R before the MD the block number i sent another picture I'm not sure how well you can see it.

wesk · Posted: Mon Jul 09, 2018 6:09 pm Post subject:

No it certainly does't look like one however if you note how lightly stamped the MD is, it is certainly possible the R could have been machined off on an earlier decking of the block. I would guess at this point you have a 1954 or 55 unit. I'll reserve a final comment until I see your completed survey form. You should mak a sincere effort to get the date codes off the axle housing and the tranny/transfer.
_________________
Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100

Mjeeps photo album: http://www.willysmjeeps.com/v2/modules.php?set_albumName=Wes-Knettle&op=modload&name=gallery&file=index&include=view_album.php

bamaj · Member Joined: Sep 22, 2013 Posts: 107

I sent the tranny picture I think it's 1/22/53 I will try to get the other numbers in the next couple of days.


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