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Hot Rods What is this? Flathead?

Discussion in 'The Hokey Ass Message Board' started by metalman, May 15, 2017.

  1. metalman
    Joined: Dec 30, 2006
    Posts: 3,280

    metalman
    Member

    Hey guys, I'm putting together a flathead for a customer. He brought me some boxes of parts he had taken off years ago and had chromed, ect. Admittedly I have a fair amount of experience with flatheads but they always been 59A motors, not so much with the 8ba's. Found this in the boxes, he insist it's from his truck but I have no clue what it is, looks to be some type of pump ran by a pulley? DSC_0264.JPG DSC_0265.JPG
     
  2. IronTrap
    Joined: Jul 13, 2011
    Posts: 468

    IronTrap
    Member

    If my eyes are seeing it right the fan goes on the end there. Also should be a bracket that the shaft slides into and mounts over the generator mount. Don't forget the threaded half moon pieces that go on the back of that front section to hold the fan itself on.

    [​IMG]

    [​IMG]
     
  3. metalman
    Joined: Dec 30, 2006
    Posts: 3,280

    metalman
    Member

    OK, thanks Matt. The fan mount was my first thought but I don't have the fan or the mounting bracket. The pump looking part of it thru me. I assume up put oil in thru the screw hole on the pulley? If so, what keeps the oil from running out the back, is there some type of seal or packing? Not sure what you mean by a threaded half moon piece, I don't have anything that looks "half moon".
    I hate trying to put something together I didn't take apart and not familiar with!
     
  4. 19Fordy
    Joined: May 17, 2003
    Posts: 7,188

    19Fordy
    Member

    Metalman; What you have is the wide belt fan pulley guts and shaft that fits the early Ford pick up trucks. I think 1949-50. The part number starts with 8RT. I forget the rest of the number. The half moon things are 4 curved pieces of metal with 1/4-28 UNF threaded holes that hold it all together. The shaft on the 8RT is 3/4 in. dia. and requires the matching 8RT fan pulley bracket with the 3/4 inch hole and retaining nuts and bolts shown in the photos. The 8BA bracket won't work as the construction and configuration is different and the shaft hole is 5/8 in. The 8RT pulley is now being reproduced and is much better than the OEM. Well worth the money. Cheaper than making your own like I did 30 years ago before the repros were available. Hope this helps.
    https://cgfordparts.com/ufolder/cgc...esc=+fan+hub+&sd=Search&searchnumber=01a-7354 Post your question on Fordbarn and you'll get more info.
     

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    Last edited: May 15, 2017
    302GMC and lothiandon1940 like this.

  5. metalman
    Joined: Dec 30, 2006
    Posts: 3,280

    metalman
    Member

    OK, thanks. Now I see what it is and what we're missing. I'll have to check with my customer and see if he has the rest of it. This motor was in a running 50/51 truck so the style (8rt) probably make sense.
     
  6. This one is off a 51 F1 V8. It tells in the service manual how to add oil.
    user65440_pic151627_1264289298.jpg user65440_pic151628_1264289298.jpg user65440_pic151629_1264289298.jpg user65440_pic151630_1264289298.jpg user65440_pic151631_1264289298_thumb.jpg
     
  7. 19Fordy
    Joined: May 17, 2003
    Posts: 7,188

    19Fordy
    Member

    One last thought. In 1972, about 6 months after I installed my 8RT fan pulley, I was leaning over the fender accuating the throttle when all of a sudden..WHAM. One of the OEM fan blades came apart. Some pieces went through the hood and some into the radiator. They just missed my head. Examination of the fan blade showed that it had developed work hardening cracks from years of flexing and finally flew apart. After than I installed a stainless flex blade fan.
    WARN YOUR CUSTOMER.
     
  8. Mac VP
    Joined: May 13, 2014
    Posts: 355

    Mac VP
    Member

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