GPW engine identification (real or not)
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Re: GPW engine identification (real or not)
Michael. It looks like it is a Ford block as it has the machined step on the oval pad.
Roger
Roger
- Chuck Lutz
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Re: GPW engine identification (real or not)
Recap..
The OPs block needs to have the casting info on the side of the block in a pic.
The second block in this thread is "stepped" which is not a Wilson block feature (Willys) but a Ford-made feature.
The second block with the stepped pad has a "GPW 59042" that doe not have a single letter or digit that even remotely resembles those fonts used at the Ford Engine Assembly line to number their motors.
So...it is not a FACTORY numbered Ford block...from there you either have a scrubbed and re-numbered block by an unknown person or...if the block has a set of "Crossed Cannons" and a number stamped on the milled side of the block where the manifolds are attached up near the front and just below the head then it may be a "replacement motor" that again either had some OP or maybe even a motorpool while in service install it into a GPW with the serial number "GPW-59042" as was suggested at the time.
The OPs block needs to have the casting info on the side of the block in a pic.
The second block in this thread is "stepped" which is not a Wilson block feature (Willys) but a Ford-made feature.
The second block with the stepped pad has a "GPW 59042" that doe not have a single letter or digit that even remotely resembles those fonts used at the Ford Engine Assembly line to number their motors.
So...it is not a FACTORY numbered Ford block...from there you either have a scrubbed and re-numbered block by an unknown person or...if the block has a set of "Crossed Cannons" and a number stamped on the milled side of the block where the manifolds are attached up near the front and just below the head then it may be a "replacement motor" that again either had some OP or maybe even a motorpool while in service install it into a GPW with the serial number "GPW-59042" as was suggested at the time.
Chuck Lutz
GPW 17963 4/24/42 Chester, PA. USA 20113473 (USA est./Tom W.)
Bantam T3-C 1947
GPW 17963 4/24/42 Chester, PA. USA 20113473 (USA est./Tom W.)
Bantam T3-C 1947
- Michael O.
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Re: GPW engine identification (real or not)
I was referring to the OP's block. Yes, the second block posted is obviously a Ford block.rjbeamer wrote:Michael. It looks like it is a Ford block as it has the machined step on the oval pad.
Roger
Michael O’Connell
Too many jeeps…and a Dodge.
MVPA 13861
Too many jeeps…and a Dodge.
MVPA 13861
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Re: GPW engine identification (real or not)
Okay, let me see if I can find those "crossed cannons". Are they supposed to be visible with the manifolds installed?
FYI: chassis and dataplates are correctly 56042 stamped.
FYI: chassis and dataplates are correctly 56042 stamped.
- dpcd67
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Re: GPW engine identification (real or not)
Yes, the crossed cannons is actually the Ordnance symbol which is a round belt, superimposed with two crossed cannons, and an Flaming Bomb at the top. It is not covered by the manifolds, but sometimes is not clear and hard to see under rust and grease and dirt. It will also have a number with an X stamped next to it. Those are the characteristics of a Ford replacement block. They were not installed in the "motor pool"; organizational maintenance (meaning the using unit; company, troop, and Battalion or Squadron) is not authorized, trained, nor equipped to replace an engine, nor are they authorized to order the replacement part anyway. Third Echelon maintenance and above, did engine replacement; now it is called the Direct Support Maintenance Battalion. Of course, the General Support and Depot Maintenance, or a commercial factory, can replace and or, repair engines.
And Bubba can do any level of maintenance he wants. Problem is, Bubba writes his own scopes of work and quality standards.
And Bubba can do any level of maintenance he wants. Problem is, Bubba writes his own scopes of work and quality standards.
U. S. Army 28 years.
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Re: GPW engine identification (real or not)
It is a Wilson cast block used for a Ford GPW. Ford use Wison blocks (same as Willys) to be able to meet production numbers of the jeeps they were contracted for. I don't know if Jim Gilmore has published anything yet but he has the daily numbers of Wilson blocks used in Ford plants.Michael O. wrote:Is it a Ford block or Willys block?
Dino! in L.A.
GPW - MB - CJ 2A/3A/3B - MC/M38 Visual Reference Site
GPW - MB - CJ 2A/3A/3B - MC/M38 Visual Reference Site
- Chuck Lutz
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Re: GPW engine identification (real or not)
Like these two.
Chuck Lutz
GPW 17963 4/24/42 Chester, PA. USA 20113473 (USA est./Tom W.)
Bantam T3-C 1947
GPW 17963 4/24/42 Chester, PA. USA 20113473 (USA est./Tom W.)
Bantam T3-C 1947
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Re: GPW engine identification (real or not)
I doubt it that I will find those marks. Engine has been cleaned and repainted but nothing extraordinary appeared.
I'll have another look asap.
I'll have another look asap.
- dpcd67
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Re: GPW engine identification (real or not)
You have to look very closely; my GPW engine marks are very faint. The ones in Chuck's picture are very clear and deep; mine aren't and the Ordnance proof mark is there but so faint it does not show up in this picture.
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U. S. Army 28 years.
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