My Willys 3A and 3B Community

3A, 3B, DJ Technical Knowledge Base => "Original"-- Technical Questions, Answers, Observations => Topic started by: Dre on September 23, 2015, 12:35:33 AM

Title: L134 Engine ID
Post by: Dre on September 23, 2015, 12:35:33 AM

I have started cleaning all the goo off the engine today so I can start tearing it apart just to check if it is salvageable and discovered that the engine does have an M38 casting on the block and head. Block casting is 804 380 and head is 800376. Serial number is 4LR136591. Can you help me ID this engine? I'd like to see if I can find out where it came from.

thanks,

Title: Re: L134 Engine ID
Post by: scoutpilot on September 23, 2015, 04:49:31 AM

Probably not everything you want to know but start here;
http://www.ww2jeeps.com/htm/Lheadmain.htm

Title: Re: L134 Engine ID
Post by: Ryan_M on September 24, 2015, 12:20:19 PM

"4LRxxx" would make it a replacement block.

Title: Re: L134 Engine ID
Post by: Dre on September 28, 2015, 01:28:45 AM

Quote

"4LRxxx" would make it a replacement block.

Really? Very interesting. I'm still going to attempt the engine revival process even though I suspect that it has been sitting with it's head off for a while.

Thanks,

Title: Re: L134 Engine ID
Post by: Bob W on September 28, 2015, 09:10:56 PM

As Ryan said it's a replacement engine. It would have been a short block made in approximately the late 1950s.

What are the numbers and letter cast in the block on the drivers side down low near the rear?

Title: Re: L134 Engine ID
Post by: Dre on September 29, 2015, 12:35:00 AM

Quote

As Ryan said it's a replacement engine. It would have been a short block made in approximately the late 1950s.

What are the numbers and letter cast in the block on the drivers side down low near the rear?

all I've got on the left side is 12 and T