The Ford Barn

Sparetimefun · 05-23-2021, 07:25 PM

Can anyone shed some light on an odd Model A engine number: D4V89876?
There are no stars to bracket the number. The 4 is not well stamped so that might be different. It is stamped on the usual pad above the water inlet with no other marks. The number does not appear to be a re-stamping.
The block appears to be a standard Model A block. It is not a diamond block. I haven't removed the pan to view the crank. The flywheel housing does not have any serial number on it, but it may not be original to the block. The head is probably not original either, although it is a regular head with 4 bolt water pump mount.
Any help here would be great. Total mystery to me. Thanks!

40-A Twins · 05-23-2021, 08:26 PM

Just a wild guess that Ford was supplying motors to outside industrial equipment manufacturers during Model A production years, and continued selling Diamond motors to the same same companies after A production ended.
My Diamond motor number prefix is LBI, and I wonder if that might be initials for the company that powered some type of farm equipment with it. It would be interesting to have a list of those companies buying Diamond motors and see if anything matches.
Kevin

Bob C · 05-23-2021, 08:41 PM

I had one that was DMVXXXX.

rotorwrench · 05-24-2021, 08:43 AM

There were multiple industrial applications and the Gleaner combine applications so it's hard to say if it is one of those or a possible restamp of a block that no longer had a visible stamping on it. The Industrials usually had a IA or IAA prefix but I don't know if that continued after model A production stopped or not. The Gleaner pull type combines had a G prefix in the series. Other companies that used them like air compressors and the like may have had their own prefix for a serial number.

A Prefix like D4V or DMV sort of looks like a state issued number prefix but I would in no way say that there is any definitive evidence to prove that. A title or known place of origin may be clues to its origin. Canadian serial number prefixes generally always start with CA.

Charlie Stephens · 05-24-2021, 10:58 AM

Probably been restamped. Can you post a picture of it?

Charlie Stephens

Sparetimefun · 05-26-2021, 03:37 PM

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Update: Took pics of my engine number, but can't figure out how to post them. Under better light I see that my engine number is really DMV89676, which is much like Bob's. I'm in California and maybe the DMV here issued the number. I've had the engine for many years and don't recall where I got it, but maybe searching through my records will provide a clue. I'll update again if I have more info.

shew01 · 05-26-2021, 07:20 PM

Quote:

Originally Posted by Sparetimefun

Update: Took pics of my engine number, but can't figure out how to post them. Under better light I see that my engine number is really DMV89676, which is much like Bob's. I'm in California and maybe the DMV here issued the number. I've had the engine for many years and don't recall where I got it, but maybe searching through my records will provide a clue. I'll update again if I have more info.

Maybe this recent thread will help.

https://r.tapatalk.com/shareLink/top...ink_source=app

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05-23-2021, 07:25 PM	#1
Sparetimefun Junior Member Join Date: May 2013 Posts: 2	Odd Model A Engine Number Can anyone shed some light on an odd Model A engine number: D4V89876? There are no stars to bracket the number. The 4 is not well stamped so that might be different. It is stamped on the usual pad above the water inlet with no other marks. The number does not appear to be a re-stamping. The block appears to be a standard Model A block. It is not a diamond block. I haven't removed the pan to view the crank. The flywheel housing does not have any serial number on it, but it may not be original to the block. The head is probably not original either, although it is a regular head with 4 bolt water pump mount. Any help here would be great. Total mystery to me. Thanks!

05-23-2021, 08:26 PM	#2
40-A Twins Senior Member Join Date: Oct 2020 Location: Oregon City, OR Posts: 121	Re: Odd Model A Engine Number Just a wild guess that Ford was supplying motors to outside industrial equipment manufacturers during Model A production years, and continued selling Diamond motors to the same same companies after A production ended. My Diamond motor number prefix is LBI, and I wonder if that might be initials for the company that powered some type of farm equipment with it. It would be interesting to have a list of those companies buying Diamond motors and see if anything matches. Kevin

05-23-2021, 08:41 PM	#3
Bob C Senior Member Join Date: May 2010 Location: So Cal Posts: 8,757	Re: Odd Model A Engine Number I had one that was DMVXXXX.

05-24-2021, 08:43 AM	#4
rotorwrench Senior Member Join Date: Jun 2010 Location: San Antonio, Texas Posts: 16,440	Re: Odd Model A Engine Number There were multiple industrial applications and the Gleaner combine applications so it's hard to say if it is one of those or a possible restamp of a block that no longer had a visible stamping on it. The Industrials usually had a IA or IAA prefix but I don't know if that continued after model A production stopped or not. The Gleaner pull type combines had a G prefix in the series. Other companies that used them like air compressors and the like may have had their own prefix for a serial number. A Prefix like D4V or DMV sort of looks like a state issued number prefix but I would in no way say that there is any definitive evidence to prove that. A title or known place of origin may be clues to its origin. Canadian serial number prefixes generally always start with CA.

05-24-2021, 10:58 AM	#5
Charlie Stephens Senior Member Join Date: May 2010 Location: Southern California Posts: 7,033	Re: Odd Model A Engine Number Probably been restamped. Can you post a picture of it? Charlie Stephens

05-26-2021, 03:37 PM	#6
Sparetimefun Junior Member Join Date: May 2013 Posts: 2	Re: Odd Model A Engine Number Sponsored Links (Register now to hide all advertisements) Update: Took pics of my engine number, but can't figure out how to post them. Under better light I see that my engine number is really DMV89676, which is much like Bob's. I'm in California and maybe the DMV here issued the number. I've had the engine for many years and don't recall where I got it, but maybe searching through my records will provide a clue. I'll update again if I have more info.