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Technical 8BA Flathead Finally Let Me Down

Discussion in 'The Hokey Ass Message Board' started by BoilermakerDave, Aug 28, 2022.

  1. I was cruising along happily, engine running fine as always, then it wasn’t running. Just like that. My immediate thought was ignition problems, so I popped off the distributor cap and went to pull the rotor for a look-see. Well, the rotor came out, along with the distributor shaft. It sheared off above the gear, so the gear is still down there.
    Is it possible to fish that gear out of there without taking everything apart? Also, I’m open to suggestions on a replacement distributor, although the old Loadomatic has worked fine for the last 8 years or so.

    Thanks everyone 30F80ACE-559E-4FD9-A65C-2BEA1F298183.jpeg 9EFB0A2E-CF97-46AE-9751-60B1CD7414D1.jpeg 63F9519E-DBC3-4BE6-BD7A-957C1161019A.jpeg
     
    Last edited by a moderator: Aug 29, 2022
    The_Cat_Of_Ages likes this.
  2. HEATHEN
    Joined: Nov 22, 2005
    Posts: 8,962

    HEATHEN
    Member
    from SIDNEY, NY

    A strong magnet on a telescopic handle, maybe?
     
  3. Petejoe
    Joined: Nov 27, 2002
    Posts: 12,524

    Petejoe
    Member
    from Zoar, Ohio

    It looks as though it broke along the insert pin at the drive gear. Correct?
    Try reinserting the shaft and fit it back in position over the pin and in the gear.
    Apply down pressure and turning the shaft at the same time. That may dislodge it and at least loosen it to pull up with a heavy magnet.
    Why would you want to change to a different distributor that provided good service for so many years?
    Those used distributors are cheap and easy to work on. Especially since your running only one 94.
     
  4. how would something just break like that? would it be caused by an oiling issue?
     
  5. BJR
    Joined: Mar 11, 2005
    Posts: 10,952

    BJR
    Member

    How easily does the rotor turn? Is it bound up? There has to be a reason it broke there.
     
  6. I have no idea why it broke, or even how it could. Oil pressure is good, around 40 psi at cruising rpm, and 15 or so at idle. The shaft was not dry when I pulled it out. I’ll get a chance to look at it today and make sure what type it is (there are 2 different distributors for the 8BA). Then see if I can find one in good condition. Now to get that gear out: might have to wait til next week…
     
  7. Budget36
    Joined: Nov 29, 2014
    Posts: 14,970

    Budget36
    Member

    I’ve only seen pics of an 8BA, but doesn’t the distributor drop in to a cover? If so, can’t you just remove the cover and look.
     
  8. I’m with Pete,,,,,,try it and see if you can retrieve the other piece .
    I’m sure it was just a defect that finally broke after more than 70 years .
    A replacement stock distributor,,,,or even just another shaft will fix it right up .

    Tommy
     
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  9. wheeldog57
    Joined: Dec 6, 2013
    Posts: 3,726

    wheeldog57
    ALLIANCE MEMBER

    Abit more work but I would pull the front cover and take a look
     
    Petejoe likes this.
  10. I don't like the thought of random little pieces of metal roaming around inside an engine. I'd pull the front timing cover for a look-see, maybe even drain and change the oil in case something is floating around in the pan. I had a distributor drive gear shear off one time on a slant six in a '69 Dodge van for no apparent reason. As I remember, it was a bronze gear. Replaced the gear, set the timing, and good to go. That old slant six had 300,000 on it if it had ever been cranked.
     
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  11. V8 Bob
    Joined: Feb 6, 2007
    Posts: 3,124

    V8 Bob
    ALLIANCE MEMBER

    Curious if you are using the alloy short body distributor in a front cover designed for the full body cast iron distributor that does not have the needed lower shaft support.
     
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  12. 19Fordy
    Joined: May 17, 2003
    Posts: 8,295

    19Fordy
    Member

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  13. Petejoe
    Joined: Nov 27, 2002
    Posts: 12,524

    Petejoe
    Member
    from Zoar, Ohio

  14. My distributor has the later ‘50 cast aluminum housing, so the shaft extends below the gear. This tells me that the timing cover has to be the right one or it wouldn’t fit. Good to know.

    I think I’m going to dive in and remove the cover, dig out the broken stuff and check for little pieces running around trying to break other stuff. I can’t get to it until the weather turns cold (gotta make hay while the sun shines), so maybe I’ll document the process in a new thread. Might help some guys with similar problems.

    Thanks for all the good suggestions!
     
    wheeldog57 likes this.
  15. V8 Bob
    Joined: Feb 6, 2007
    Posts: 3,124

    V8 Bob
    ALLIANCE MEMBER

    The lower supported cover is obvious from the outside. The extended shaft distributor will fit the other covers if the extension has been cut off, but you'll know for sure when the cover is removed.
     
    BoilermakerDave likes this.

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