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Hot Rods Flathead fan adapter

Discussion in 'The Hokey Ass Message Board' started by 27sedan, Apr 13, 2021.

  1. 27sedan
    Joined: Jan 9, 2006
    Posts: 56

    27sedan
    Member
    from courtenay

    I blew apart my fan on my 8ba flathead. I was running the oil filled hub. I have ordered a flexalite #417 fan. I see there is a sealed bearing unit available from Mac's but how do you adapt the 4 bolt fan? I read about a lot of people running this fan but I mention or pictures on how it is adapted IMG_20210405_184529.jpg
     
  2. Bandit Billy
    Joined: Sep 16, 2014
    Posts: 9,266

    Bandit Billy
    ALLIANCE MEMBER

    You never see an electric fan do that, just sayin. BTW, where did the other blade go?
     
  3. 27sedan
    Joined: Jan 9, 2006
    Posts: 56

    27sedan
    Member
    from courtenay

    I have never seen an electric fan that didn't make me puke in my mouth,hahaha.
     
  4. BJR
    Joined: Mar 11, 2005
    Posts: 7,735

    BJR
    Member

    On an old car an electric fan is a last ditch effort to fix a bad design.
     
    sidevalve8ba and rusty valley like this.

  5. Model A Gomez
    Joined: Aug 26, 2006
    Posts: 1,538

    Model A Gomez
    Member

    Lucky you didn't lose the radiator, I had a stock Model A two blade come apart and it hit the radiator on the way to the hood, was able to repair both but still no fun.
     
  6. 27sedan
    Joined: Jan 9, 2006
    Posts: 56

    27sedan
    Member
    from courtenay

    Yeah I lost the radiator, 2 hoses, fan, and tore the bolts out of the generator mount.
     
  7. OzyRodder
    Joined: Dec 11, 2012
    Posts: 304

    OzyRodder
    ALLIANCE MEMBER

    Daily driven I’ve lost two fans over the years.

    First one I had no hood on and it launched the blade into a field. No damage to radiator.

    Second time not so lucky. Took out radiator and hood side. Running a flexalite plastic fan attached to stock 32 spacer now. Can change to steel stock fan if I ever need to “look” right for a show or something. IMG_0362.JPG IMG_0388.JPG IMG_0363.JPG 62980076930__57A11AC5-5C0F-4B71-B073-EFA8FDA8A508.JPG



    Sent from my iPhone using The H.A.M.B. mobile app
     
    Desoto291Hemi likes this.
  8. And that's why you never lean over or stand in line with a fan on a running engine!

    I know a guy who had been working on the top of an engine doing some minor tune up stuff on a 70's car. He had the engine running while he leaned forward and put the air cleaner back on, then put the hood down. Seconds later the fan launched itself through the hood. Yikes, that was close!
     
    Last edited: Apr 14, 2021
  9. 27sedan
    Joined: Jan 9, 2006
    Posts: 56

    27sedan
    Member
    from courtenay

    So how do I go from this hub to a 4 bolt fan. I could get an adapter machined, but maybe there is an easier way? 834863d057cd9248e95e79a53a0ac222.jpg
     
  10. Dan Haines
    Joined: Feb 2, 2021
    Posts: 13

    Dan Haines

    I'm looking to do exactly the same thing. Have seen, but don't know where available, such an adapter that goes on a gen/alternator that allowed the 4 bolt flex fan use. Been looking for a hub set up that does the same. Thinking about building my own. I'll follow this thread, and if I figure out something, I'll add it in.

    Sent from my SM-N950U using The H.A.M.B. mobile app
     
  11. brading
    Joined: Sep 9, 2019
    Posts: 549

    brading
    Member

    Could you not drill the four bolt fan with eight holes the same as your old one with the rivets in between the new holes.
     

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