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Dating my Farmall M

B

Bengt Erik Eriksson

New User
HI I've got a "M" that have lost its "vin" code plate.
The numer located on the engine behind the distributor says FFGM 1688 wich i guess should be BFCM, is that right? This one is a brittish build "Marshall help" "M"signed tractor with Zenith carburettor and Lucas electrical parts but this engine nuber says itś a american casting what i've been told.
Questions: Is it possible to match exact engine with tractor serial number? Or is there a real engine number series named FFGM an i've got a tractor with a exhcanged engine?
I have found very little about theese tractors on internet so i would be verry greatefull for help.
Bengt Erik Eriksson. Oskarshamn SWEDEN
 
Look under No1 sparkplug on the engine block for
a flat machined surface for a serial number. It may have several coats of paint and grease and dirt over it. Hal
PS: I don't think the 1688 is the serial number as that would make it made in 1939.
 
Hal's advice applies to North American Farmalls, but may not hold true on the European Farmalls.

Is the "FFGM 1688" punched into a flat spot on the block? If the code is in raised letters on the rough surface of the block, it is a part number.

In North America, the engine serial numbers are usually CLOSE to the tractor's serial number, but usually, they're not the same. Unless you are very close to the cutoff point for a given year, the engine serial will usually give you the year the tractor was manufactured. It won't give you the exact serial number of the tractor; that is lost to time unless you can track down a bill of sale for the tractor from a previous owner.
 
The US prefix was FBKM for a farmall M engine, all the US 6 series engines I can think of ended with the last 2 letters KM except 0S6, which ended with SM if I remember correct. Don't think all early production engines were coded with the standard code, but have no solid evidence on that. Some early US M tractors didn't have a serial # plate, if the tractor is a early one try to find a number stamped in the frame rails.
For a US 6 series engine look for a block casting # above the oil filter, that # and suffix letters may help narrow it down. May be able to find a date code on the block about the same level as the cast number, but looking on toward the front. Just asking in case you have a C type engine, is the engine governor on the right or left side of engine?
US M with that low engine serial # would probably match the chassis serial # or be very close, unless you can find date codes on chassis and engine and can determain nothing was changed over the years, that would still be speculation.
 
Hi thanks for fast replyś
Given numbers are punched in a plane machined surface on the block behind ignition coil at rigt side.
Governor is located on tractors left side.

tractors "vin" code plate is lost to 90% so there is still a fragment left. But can't give info to mee.

Okay i will check for those possible marks on engine and hope you will help me more then.
 
Picture of US M engine cast # and date code. T is for a 1950 cast date. I= 1939. J=1940.
a14018.jpg
 
Let the jokes begin. Seems to me there was another Farmall owner dating his tractor about a month ago. Don"t know whether he was a Swede though. Me, full-blooded, heterosexual, Norwegian hyphenated American and still waiting for the affirmative action program for MY PEOPLE. Ha det god med din projekt.
 
(quoted from post at 12:47:39 04/16/10) Let the jokes begin. Seems to me there was another Farmall owner dating his tractor about a month ago. Don"t know whether he was a Swede though. Me, full-blooded, heterosexual, Norwegian hyphenated American and still waiting for the affirmative action program for MY PEOPLE. Ha det god med din projekt.
Click to expand...
In my experience, M's are male; H's are female. I date the H's..... To each his own, however.
 
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