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Projects Another use of a Model A Ford : The Thieman Tractor

Discussion in 'The Hokey Ass Message Board' started by rustyironman, Jun 27, 2025.

  1. Not been particularly active on the HAMB the last few years.

    Recently ended up having to go back to the old farm in Rural Michigan to help out my Elderly Father after he had a massive heart attack, subsequent open heart surgery, and a month long stay in the Hospital.

    This 1941 Thieman tractor found me, will make an interesting tinker therapy project. They were "factory built" mid 1930's until late 1941, and used a COMPLETE Model A Ford driveline, engine, trans, rear end, radiator. It really shows the creativity of the time, the same creativity the hot rod hobby was born from. This particular one is one of the last ones made, about 500 factory assembled tractors were made along with "kits" where one supplied their own Model A.

    Probably will have to find a different engine, or at least a good block but thankfully its just Model A stuff.
     

    Attached Files:

  2. woodiewagon46
    Joined: Mar 14, 2013
    Posts: 2,511

    woodiewagon46
    Member
    from New York

    Those little four cylinder Model A engines were in everything, military vehicles, industrial equipment, agricultural use, boats, trains and even airplanes. Back in the '30s you could have your choice of dozens in every junkyard in the U.S. for as little as $5.00 for a good running engine. Have fun with your project and keep us posted on your progress.
     
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  3. Kevin Pharis
    Joined: Aug 22, 2020
    Posts: 698

    Kevin Pharis
    Member
    from Califunny

    The engine in my dads ‘31 coupe came out of a Toro tractor from that same era. Diamond block with counterweighted “C” crank so can’t complain
     
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  4. Beanscoot
    Joined: May 14, 2008
    Posts: 3,584

    Beanscoot
    Member

    Clever ad copy in that old notice, "Ask the Farmer Who Owns One".

    upload_2025-6-27_20-59-41.png
     

    Attached Files:

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  5. Budget36
    Joined: Nov 29, 2014
    Posts: 15,203

    Budget36
    Member

    Hope that pops is doing well.
     
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  6. 1952henry
    Joined: Jan 8, 2006
    Posts: 1,573

    1952henry
    Member

    Yes, best wishes for your dad. Model A engines found their way into Gleaner combines. I happen to know where one is.
     
  7. Kevin Pharis
    Joined: Aug 22, 2020
    Posts: 698

    Kevin Pharis
    Member
    from Califunny

    Pops is doin good… latest project on his coupe is repairing a roached Winfield intake manifold, welding it up and remachining to accept a SR-C carb. He changes carbs like most change underwear, so we’ll see how it goes. Someday I hope to put a set of 19” knock off Dayton wires on it. Not your typical tractor mods
     
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  8. 51504bat
    Joined: May 22, 2010
    Posts: 5,570

    51504bat
    ALLIANCE MEMBER

    My guess is that it's not factory
    501125959_647405281620601_1044159198012115786_n.jpg 500782797_10025118590887965_3008401542822886859_n.jpg 500125664_1892506971483890_6098541678921261143_n.jpg
     
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  9. SS327
    Joined: Sep 11, 2017
    Posts: 3,799

    SS327

    Aren’t those the precursor to the Economy Tractor company?
     
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  10. lostn51
    Joined: Jan 24, 2008
    Posts: 3,153

    lostn51
    ALLIANCE MEMBER
    from Tennessee

    That is going to be a nifty project and looks pretty complete. I’m glad to hear dad is doing better and wanting to work on his car. Sounds like you guys have some great times ahead of you with two projects going on, keep us posted and more pics please ;)
     
    Budget36 likes this.
  11. F me!!! Now I got another itch I need to scratch.
     
  12. I saw that on craigslist I don't know what I would do with it but I sure like it and it's close to home It's taking everything in my power not to message on it You should buy it and post about it on here so I can live vicariously through you.
     
  13. 1952henry
    Joined: Jan 8, 2006
    Posts: 1,573

    1952henry
    Member

    I saw a picture of a Model A doodlebug taken at a tractor show that had front wheel assist. The front axle looked like a Model A with turning knuckles. Can’t find that picture on the web again.

    Guess it is possible the front axle was a Marmon Herrington, from a commercial chassis.
     
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  14. 51504bat
    Joined: May 22, 2010
    Posts: 5,570

    51504bat
    ALLIANCE MEMBER

    I did bookmark the posting but I'm way too deep in my '54 Ranch Wagon project - read money pit.
     
  15. woodiewagon46
    Joined: Mar 14, 2013
    Posts: 2,511

    woodiewagon46
    Member
    from New York

    If you look closely at the "doodle bug" pictures you can see that there are two Model A transmissions back to back, which was common on some doodle bugs. They would lock the first trans in low gear and shift with the second trans. It gave the vehicle great pulling power for farm implements.
     
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  16. NoSurf
    Joined: Jul 26, 2002
    Posts: 4,808

    NoSurf
    Member

    Very cool.

    My 1982 Heckendorn commercial lawnmower (88" deck), built in Cedar Kansas, came with a model A transmission next to a 2 cylinder air cooled wisconsin.
     
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  17. GuyW
    Joined: Feb 23, 2007
    Posts: 780

    GuyW
    Member

    My (approx 1942) John Deere Model L orchard tractor uses several Model A parts: steering box, column, steering wheel, and trans (I think), and perhaps other bits.
     
    Last edited: Jun 30, 2025
  18. Gabby
    Joined: Apr 14, 2007
    Posts: 321

    Gabby
    Member

    My Dad paid $15 for a 1929 model A to put the motor in a boat. The only car my grandfather even owned was a 28 Star, again for a boat motor.
     
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