The CJ3A Page CJ3B.info

Author Topic: 1950 CJ-3A with a bit of M38 in it's blood  (Read 13534 times)

0 Members and 1 Guest are viewing this topic.

Offline Dre

  • Willys Fan
  • **
  • Posts: 54
  • Karma: +0/-0
  • Still Plays With Jeeps
    • View Profile
1950 CJ-3A with a bit of M38 in it's blood
« on: September 22, 2015, 10:11:33 PM »
and so I begin my journey now hoping for a happy ending to the story... hopefully in not so distant future, hoping that this project won't drive me mad or won't be basis for a divorce. I have been sitting on a fence for way too long now. I knew that one day I was going to get me another Cherokee or a TJ to build out. I had that itch and I had to scratch it rather soon. One day though I was browsing through that pages and pages of trucks on eBay and I have stumbled upon this beautiful thing called Willis CJ-3A... you can call it love at first sight... you can call it destiny, you can call it whatever you want. Right there and then I knew I had to get her. Even though she was about 1800 miles from where I was sitting... I didn't care. I had to have her and so I placed my bid... and I waited and waited... fortunately for me nobody else fell in love with her as bad as I and so I got her... and here she is. 1950 CJ-3A, 90% complete, has been sitting in a Nevada desert since 1981, not running of course. Not bad as far as rust goes but in a desperate need of attention, lots and lots of attention as there is not even one piece of sheet metal that would not be bent, dented, rusted and welded over. Rodents used her nooks and crannies as their storage. I know tub will need quite a bit of tweaking, fenders might even have to go. Frame seems to be in very good shape with a few mods here and there, plates of metal welded to it at one place, front bumper welded shut. Engine might be beyond repair as she was sitting in the open with cylinder head off. At the moment I'm still trying to disassemble her and get things sorted out. First I wanted to convert her straight into an MB... but it would probably require way too much work and I'm perfectly fine with the way the front of the CJ-3A looks. My idea now is to convert her to 50-52 M38. Time will show. I'm not one of those puritans that would try and turn back time and make her look the way she rolled off the assembly line (she's not going to be a trailer queen). No, I will probably straighten the body out a bit, cut all the rust out and replace it with fresh metal and put a fresh coat of flat Olive Drab paint on it. Frame, drive-line, electrical system, brakes will all be brand new, not going to cut corners there. Time will tell... for now here she is. Every step of the way I'm going to keep this journal so I can reflect later on all the late nights I spent in the garage.
I'm pretty sure I'm gonna have plenty of questions during the process. I'm not new to this. I have built a couple of Cherokees and three off-road capable Explorers... this is going to be different though.

thanks for listening

Offline squidtone

  • Willys Guru
  • ****
  • Posts: 348
  • Karma: +0/-0
  • Still Plays With Jeeps
    • View Profile
Re: 1950 CJ-3A with a bit of M38 in it's blood
« Reply #1 on: September 23, 2015, 11:56:20 AM »
That Jeep has good bones.
Good luck with it!
Dave Miles
Presently: � � � � � � � �
03 Rubicon,
50 CJ3A
Past:
01 XJ Cherokee,
87 XJ Cherokee,
85 XJ Cherokee,
83 CJ8,
81 CJ7

Offline Dre

  • Willys Fan
  • **
  • Posts: 54
  • Karma: +0/-0
  • Still Plays With Jeeps
    • View Profile
Re: 1950 CJ-3A with a bit of M38 in it's blood
« Reply #2 on: September 26, 2015, 01:04:12 PM »
Something I discovered today upon closer inspection of the body... a bullet hole - through and through. Stories that these cars could tell us sometimes...

Offline athawk11

  • SMF Administrator
  • Flatfender Master
  • *****
  • Posts: 2818
  • Karma: +0/-1
  • 1949 CJ3A
    • View Profile
Re: 1950 CJ-3A with a bit of M38 in it's blood
« Reply #3 on: September 27, 2015, 01:57:34 PM »
Dre,
Looks like a nice starting point.  This should be fun to watch.  I took my 3A in the same direction. ( "M-38" )

Tim
2-1949 CJ3As
1-1946 CJ2A

Offline Dre

  • Willys Fan
  • **
  • Posts: 54
  • Karma: +0/-0
  • Still Plays With Jeeps
    • View Profile
Re: 1950 CJ-3A with a bit of M38 in it's blood
« Reply #4 on: September 27, 2015, 03:05:18 PM »
Lack of time... always something... so far I have been able to disassemble the body to nearly starting point... still have bolts on the passenger side to remove to separate the body from the frame. I will be able to start working on the frame after that. I've got an entire winter for that. Wondering if I'll be able to save the engine though (especially since it is an M38 engine!) There are a few spots I will have to weld but other than that the frame is very solid. Engine mounts worry me - especially the one on the driver side - looks like it was "grafted" it on the spot. A few update photos.

Offline athawk11

  • SMF Administrator
  • Flatfender Master
  • *****
  • Posts: 2818
  • Karma: +0/-1
  • 1949 CJ3A
    • View Profile
Re: 1950 CJ-3A with a bit of M38 in it's blood
« Reply #5 on: September 27, 2015, 08:17:00 PM »
How did you determine its an MC engine?  I only ask because it has a CJ2A, MB, or GPW front engine plate.

Tim
2-1949 CJ3As
1-1946 CJ2A

Offline Dre

  • Willys Fan
  • **
  • Posts: 54
  • Karma: +0/-0
  • Still Plays With Jeeps
    • View Profile
Re: 1950 CJ-3A with a bit of M38 in it's blood
« Reply #6 on: September 27, 2015, 08:53:55 PM »
Quote
How did you determine its an MC engine?� I only ask because it has a CJ2A, MB, or GPW front engine plate.

Tim

804 380 casting on the block and 800376 on the head

Offline athawk11

  • SMF Administrator
  • Flatfender Master
  • *****
  • Posts: 2818
  • Karma: +0/-1
  • 1949 CJ3A
    • View Profile
Re: 1950 CJ-3A with a bit of M38 in it's blood
« Reply #7 on: September 28, 2015, 12:01:39 AM »
Does it have a serial #?
2-1949 CJ3As
1-1946 CJ2A

Offline Dre

  • Willys Fan
  • **
  • Posts: 54
  • Karma: +0/-0
  • Still Plays With Jeeps
    • View Profile
Re: 1950 CJ-3A with a bit of M38 in it's blood
« Reply #8 on: September 28, 2015, 12:36:39 AM »
Quote
Does it have a serial #?

Serial number is 4LR136591

Offline Ryan_M

  • Flatfender Master
  • *****
  • Posts: 1704
  • Karma: +0/-0
    • View Profile
Re: 1950 CJ-3A with a bit of M38 in it's blood
« Reply #9 on: September 28, 2015, 03:59:10 PM »
Later replacement block. Google "Willys Jeep 4LR block..." and you'll find all kinds of info. I found one of these "4LR" blocks in a 2A over the winter and chased down the same mystery.
« Last Edit: September 28, 2015, 04:00:05 PM by Ryan_M »
Current:
'49 CJ3A
'51 CJ3A
'42 Willys MB-T
'47 Bantam T3-C
Previous:
'46 2A
'51 3A
'52 3A
'52 M38
'54 3B
East Coast Wi

Offline Dre

  • Willys Fan
  • **
  • Posts: 54
  • Karma: +0/-0
  • Still Plays With Jeeps
    • View Profile
Re: 1950 CJ-3A with a bit of M38 in it's blood
« Reply #10 on: September 28, 2015, 04:08:45 PM »
Quote
Later replacement block. Google "Willys Jeep 4LR block..." and you'll find all kinds of info. I found one of these "4LR" blocks in a 2A over the winter and chased down the same mystery.
But still, it has M38 casting on the block... what would that mean? is there a difference - I need to explore this a bit more. The engine might not be salvagable but I have not taken it apart juts yet

Offline athawk11

  • SMF Administrator
  • Flatfender Master
  • *****
  • Posts: 2818
  • Karma: +0/-1
  • 1949 CJ3A
    • View Profile
Re: 1950 CJ-3A with a bit of M38 in it's blood
« Reply #11 on: September 28, 2015, 05:34:08 PM »
As Ryan states, 4LR (Four Cylinder...L-Head...Replacement) engine blocks were being produced at the same time that they were producing engines that actually ended up in 3As, M38s, etc... 

If your serial # began with "MC" instead of "4LR", then the engine block would have originally been installed in an M38.

Tim
2-1949 CJ3As
1-1946 CJ2A

Offline Dre

  • Willys Fan
  • **
  • Posts: 54
  • Karma: +0/-0
  • Still Plays With Jeeps
    • View Profile
Re: 1950 CJ-3A with a bit of M38 in it's blood
« Reply #12 on: September 28, 2015, 07:50:54 PM »
Quote
As Ryan states, 4LR (Four Cylinder...L-Head...Replacement) engine blocks were being produced at the same time that they were producing engines that actually ended up in 3As, M38s, etc...�

If your serial # began with "MC" instead of "4LR", then the engine block would have originally been installed in an M38.

Tim

So basically there is no difference in parts between these blocks? Same engine mounts? I need a manual that can explain all this. Thanks...

Offline Dre

  • Willys Fan
  • **
  • Posts: 54
  • Karma: +0/-0
  • Still Plays With Jeeps
    • View Profile
Re: 1950 CJ-3A with a bit of M38 in it's blood
« Reply #13 on: September 29, 2015, 12:55:42 AM »
well, tub is almost ready to be lifted. I just have to remove the steering wheel and shaft. I did manage to open the transmission today and a bummer... it's dry and it's rusted solid. well... looks like I'll have to hit craigslist...

Offline athawk11

  • SMF Administrator
  • Flatfender Master
  • *****
  • Posts: 2818
  • Karma: +0/-1
  • 1949 CJ3A
    • View Profile
Re: 1950 CJ-3A with a bit of M38 in it's blood
« Reply #14 on: September 29, 2015, 05:00:37 PM »
Quote

So basically there is no difference in parts between these blocks? Same engine mounts? I need a manual that can explain all this. Thanks...

Correct.  An L-134 engine can accept any and all parts from any other L-134 engine. 

The only time this isn't true is if you have a L-134 with a block casting # 638632  or GPW 6015.  These are chain drive blocks.  Most everything can be interchanged with this block too...with some exceptions.

Your tranny looks rough.  That bites.
2-1949 CJ3As
1-1946 CJ2A