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  1. #1
    Gold Member CCWKen's Avatar
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    Mar 2005
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    South Texas, USA
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    Ford 3910, JD 420C, Kubota G32XKS

    Default Tractor Number vs. Engine number?

    I just got around to cleaning up the 1986 3910 I picked up a few months ago. I was able to brush all the stampings and record them but what I found is the engine number doesn't match the tractor number. The tractor number matches the under hood decal but not the engine. Were the engines produced on a separate factory line then mated to the tractor? Is the engine serial number supposed to match the tractor number?

    Tractor Number: C759932 (Hood Decal)
    RH Case Stamp: C759932 (6D15B)
    Engine Stamp: C889578 (6A9A)

    Added: Notice the engine serial number is higher but the date stamp is earlier. ????? Whut up wit dat?

  2. #2
    Elite Member
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    Mar 2006
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    3,059
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    Wisconsin
    Tractor
    2003 NH TN70A

    Default Re: Tractor Number vs. Engine number?

    It is a hybrid
    Bob

  3. #3
    Super Member RickB's Avatar
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    Sep 2000
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    7,843
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    Eastern NY
    Tractor
    Case 885, Ford 4000

    Default Re: Tractor Number vs. Engine number?

    Quote Originally Posted by CCWKen View Post
    I just got around to cleaning up the 1986 3910 I picked up a few months ago. I was able to brush all the stampings and record them but what I found is the engine number doesn't match the tractor number. The tractor number matches the under hood decal but not the engine. Were the engines produced on a separate factory line then mated to the tractor? Is the engine serial number supposed to match the tractor number?

    Tractor Number: C759932 (Hood Decal)
    RH Case Stamp: C759932 (6D15B)
    Engine Stamp: C889578 (6A9A)

    Added: Notice the engine serial number is higher but the date stamp is earlier. ????? Whut up wit dat?
    If engine numbers matched the chassis number, there would be no need for engine serial numbers. Care to guess how many models of tractors and other equipment use that same engine model? Also many models of engines are serialed together, just as all models of tractors from a particular factory are.

  4. #4
    Gold Member CCWKen's Avatar
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    Mar 2005
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    326
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    South Texas, USA
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    Ford 3910, JD 420C, Kubota G32XKS

    Default Re: Tractor Number vs. Engine number?

    Quote Originally Posted by RickB View Post
    If engine numbers matched the chassis number, there would be no need for engine serial numbers. Care to guess how many models of tractors and other equipment use that same engine model? Also many models of engines are serialed together, just as all models of tractors from a particular factory are.
    Good point. So why even have an engine serial number? I've never had to give the engine number when ordering parts. It's always the tractor number. There's no mention of the engine number on the ID tag so other than being recorded on some assembly sheet somewhere, if that, what good is the number? How would anyone know if the engine was changed?

  5. #5
    Super Member RickB's Avatar
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    Eastern NY
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    Case 885, Ford 4000

    Default Re: Tractor Number vs. Engine number?

    Quote Originally Posted by CCWKen View Post
    Good point. So why even have an engine serial number?
    There is value to the manufacturer in tracking production, and where specific units are in the case of a run of bad parts or faulty assembly. Also, there are instances where engines are supplied to other manufacturers for installation in their equipment, or sold as power units (generators, irrigation pumps).


    Quote Originally Posted by CCWKen View Post
    I've never had to give the engine number when ordering parts. It's always the tractor number. There's no mention of the engine number on the ID tag so other than being recorded on some assembly sheet somewhere, if that, what good is the number?
    The most sure way to get the correct parts for Ford tractors is by using the unit code rather than the chassis serial number. This is especially true for Basildon built units.
    If the manufacturer determined by engine serial number that your tractor had a set of faulty pistons in it, or a crankshaft with improper oil galleys drilled in it, a product recall would benefit the end user.

    Quote Originally Posted by CCWKen View Post
    How would anyone know if the engine was changed?
    They may not, unless the unit code indicated a later build date for the engine than the final assembly (chassis) unit code. Or if the current engine is tagged as a BSD replacement engine.

  6. #6
    Elite Member AlanB's Avatar
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    Jan 2004
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    Clarksville, TN, USA
    Tractor
    NH 1925

    Default Re: Tractor Number vs. Engine number?

    What is a "Basildon built unit"?

  7. #7
    Super Member RickB's Avatar
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    Eastern NY
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    Case 885, Ford 4000

    Default Re: Tractor Number vs. Engine number?

    Quote Originally Posted by AlanB View Post
    What is a "Basildon built unit"?
    Production from the Basildon, England factory 1965 and later. Typically have a 'B' prefix serial number as opposed to the 'C' prefix Michigan built Fords or the 'A' prefix (Antwerp) Belgian Fords; any of which can be found in North America.

  8. #8
    Elite Member AlanB's Avatar
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    Clarksville, TN, USA
    Tractor
    NH 1925

    Default Re: Tractor Number vs. Engine number?

    Quote Originally Posted by RickB View Post
    Production from the Basildon, England factory 1965 and later. Typically have a 'B' prefix serial number as opposed to the 'C' prefix Michigan built Fords or the 'A' prefix (Antwerp) Belgian Fords; any of which can be found in North America.

    Thanks,

    I don't think you get told that enough for all the help you are.

    I really value your posts and am constantly learning from them.

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