Willys Industrial Engine

1941 - 1945, MB, GPW Technical questions and discussions, regarding anything related to the WWII jeep.
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Nigelr32
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Willys Industrial Engine

Post by Nigelr32 » Sat May 31, 2014 2:53 am

Hi all,

My GPW, March '44, came fitted with a running Willys industrial engine. I have done a little research on this and found that it probably has a larger inlet manifold and lower compression, but is otherwise the same as any L134 Engine? Is this true?

It has a number clearly stamped into the flat above the water pump, JXXXXXX (I don't remember the number right now), and the block is literally covered in raised cast on numbers.

If I change the head, Inlet and water pump will it basically be the same as the engine my Jeep was built with? If so, who would like to sell me a good GPW Cylinder head?
1944 GPW Restoration Project.
Frame number 192326 3-30-44
ACM II 158783 Dec 44?

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Mark Tombleson
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Re: Willys Industrial Engine

Post by Mark Tombleson » Sat May 31, 2014 1:12 pm

MB-NAVY-MZ-1 352625 - 07/20/44 (DOD est.)
U.S.N. 133818
2nd place Restored Class 2008 Portland Convention
MVPA Hall of Fame - 2013

Nigelr32
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Re: Willys Industrial Engine

Post by Nigelr32 » Sat May 31, 2014 2:38 pm

Thanks for all the info Mark. I have seen some of it before, but the more the merrier!!

So, should I assume I have a CJ engine with an industrial head? Will an original GPW head bolt on?
1944 GPW Restoration Project.
Frame number 192326 3-30-44
ACM II 158783 Dec 44?

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Mark Tombleson
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Re: Willys Industrial Engine

Post by Mark Tombleson » Sat May 31, 2014 7:30 pm

How do you know it is an industrial engine?

Here is another photo of the industrial engine... and a link to others of the same engine.

Image

http://forums.aaca.org/f185/willys-jeep ... 23626.html

What makes the JXXXXX engine you have seem like an industrial engine?
MB-NAVY-MZ-1 352625 - 07/20/44 (DOD est.)
U.S.N. 133818
2nd place Restored Class 2008 Portland Convention
MVPA Hall of Fame - 2013

Nigelr32
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Re: Willys Industrial Engine

Post by Nigelr32 » Sun Jun 01, 2014 2:58 am

Hey Mark, thanks again for even more input!!

This is why I think I have an industrial engine, the head...

Image

Or, do I have a CJ engine with an Industrial head on it? Here are the casting numbers and engine serial.

Right block...

Image

Left...

Image

Serial number...

Image

I'm hoping I have a "car" engine, and that I can put an original GPW head on it to both increase CR and get a more accurate appearance. I don't have a problem with having the Industrial engine, the seller told me it was a post war engine, "probably" from a generator set. I have read some threads about sellers with totally original jeeps with these engine blocks fitted.

Thanks again for your help here Mark.
1944 GPW Restoration Project.
Frame number 192326 3-30-44
ACM II 158783 Dec 44?

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Sean Collins
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Re: Willys Industrial Engine

Post by Sean Collins » Sun Jun 01, 2014 7:24 am

Nigelr32 wrote:...This is why I think I have an industrial engine, the head...
You have a "Model CJ-2A" short block. October 30, '48 casting (made while CJ-2A was still in production). This may have originally been configured as an industrial engine, or may have been put in a vehicle. The s/n alone cannot tell.

However, the short blocks are identical. The main difference between industrial and vehicular engines was the "bolt-ons": head, carburetor, possibly manifold.

Nigelr32
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Re: Willys Industrial Engine

Post by Nigelr32 » Sun Jun 01, 2014 8:57 am

Thanks Sean,

At least it's a Jeep engine then. With a coat of light grey paint and a GPW head, the average onlooker would never know the difference!!

I'm going to get a different inlet, water pump and head now.
1944 GPW Restoration Project.
Frame number 192326 3-30-44
ACM II 158783 Dec 44?

fernando mendes
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Re: Willys Industrial Engine

Post by fernando mendes » Sun Jun 01, 2014 1:30 pm

I have a 1952 serie B Dodge truck PU that has an industrial engine.Its engine is a 251" displacement.The normal Dodge engine is a 230" displacement.Its head length is 25",the normal head is 23". :lol:
Jeep Willys MB DoD dec,16 1942 s/n:196275
Dodge B3-B 4x2 1952 s/n:90099559
CCKW 353 Banjo 1944 s/n:309623

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