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Hot Rods Twin spark distributor

Discussion in 'The Hokey Ass Message Board' started by RaceFink, Jan 17, 2023.

  1. RaceFink
    Joined: Nov 6, 2022
    Posts: 34

    RaceFink

    I runn in a dual spark Scintilla distrbutor and thinking to use it on a Flathead Ford.
    There is absolut no info in net where ist this distibutor from, mayb some of you now.
    I am not sure should I install in fron t with all wires up ore the german way in rear to have belt clerance for blower option? 20230117_171430.jpg 20230117_171454.jpg 20230117_171507.jpg 20230117_172028.jpg 20230117_172103.jpg
     
    Last edited by a moderator: Jan 17, 2023
  2. HEATHEN
    Joined: Nov 22, 2005
    Posts: 8,810

    HEATHEN
    Member
    from SIDNEY, NY

    Any sort of I.D. tag on it?
     
  3. Moriarity
    Joined: Apr 11, 2001
    Posts: 34,072

    Moriarity
    SUPER MODERATOR
    Staff Member

    I enlarged the pics for you, simply select full image when posting pics. Looks like the carbon brush is missing from the rotor? the inside of the cap must have a contact ring for the second side of the rotor. Do you need dual plug heads for this in order to be able to use it? It looks to me like there are holes for 16 plug wires.... what does the drive end look like?
     
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  4. tubman
    Joined: May 16, 2007
    Posts: 7,417

    tubman
    ALLIANCE MEMBER

    I counted twice and get room for 14 plug wires (plus two coil leads). This leads me to believe that this is for for an aircraft application, specifically a radial engine. They always (to my knowledge) have an odd number of cylinders.

    This makes it pretty much useless for a flathead. I agree with Mark than this is for a twin plug configuration.. The two condensers verify this for me, as I had similar setup on a Pierce-Arrow V12 with dual ignitions in a Seagrave fire engine I once had.
     
  5. RaceFink
    Joined: Nov 6, 2022
    Posts: 34

    RaceFink

    thanks for enlarging the pictures.
    there are 16 spark wires 9 in lower 7 in upper row and eight lobs that move the points, so I am sure they were made for twin plug eight-cylinder motor
    BN8d-2 was on the ID tag on a second base that comes with the complete distributor.
    Yes Scintilla wos often used on aircraft bit this is a car unit I am 100% sure but have no idee where it is from
     
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  6. Moriarity
    Joined: Apr 11, 2001
    Posts: 34,072

    Moriarity
    SUPER MODERATOR
    Staff Member

    pic of the drive end?
     
  7. RaceFink
    Joined: Nov 6, 2022
    Posts: 34

    RaceFink

    On the left is the complete, on the right the housing with shaft. The one on left look typically for French distributor drive 20230117_210937.jpg
     
    Last edited by a moderator: Jan 17, 2023
  8. tubman
    Joined: May 16, 2007
    Posts: 7,417

    tubman
    ALLIANCE MEMBER

    I think you should count the lobes on the point cam again. I can't see 'em, but I'll bet there are 7.

    Also, two condensers mean two coils. Where do they hook up? The two "odd" connectors go right to the center of the rotor, not to the outside perimeter.
     
    Last edited: Jan 17, 2023
  9. seb fontana
    Joined: Sep 1, 2005
    Posts: 8,875

    seb fontana
    Member
    from ct

    In the two holes above the row of 9?
     
  10. Moriarity
    Joined: Apr 11, 2001
    Posts: 34,072

    Moriarity
    SUPER MODERATOR
    Staff Member

    I enlarged the pics again, please when posting pics select FULL IMAGE especially when you are looking for ID help
     
    Barrelnose pickup and '34 Ratrod like this.
  11. RaceFink
    Joined: Nov 6, 2022
    Posts: 34

    RaceFink

    again 16 holes for spark plug two holes for coil eight lobs on the point cam
    @Moriarity I will do sorry
     
    Last edited: Jan 17, 2023
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  12. elgringo71
    Joined: Oct 2, 2010
    Posts: 3,858

    elgringo71
    Member

    I have never seen one like it but the fact that it was made in Switzerland and the color of it make me think that it’s a Scintilla
     
  13. Carter
    Joined: Mar 18, 2006
    Posts: 1,524

    Carter
    Member

    I'm guessing Minerva AL.
     
    Fordors likes this.
  14. tubman
    Joined: May 16, 2007
    Posts: 7,417

    tubman
    ALLIANCE MEMBER

    "Wishing doesn't make it so".

    Or maybe I just can't count. Or maybe I can't see 'em from the pictures supplied.
     
    Last edited: Jan 17, 2023
    Budget36 likes this.
  15. Johnny Gee
    Joined: Dec 3, 2009
    Posts: 13,573

    Johnny Gee
    Member
    from Downey, Ca

    Let’s see under side of cap
     
  16. tubman
    Joined: May 16, 2007
    Posts: 7,417

    tubman
    ALLIANCE MEMBER

    Yeah, we need better pictures. From a closer look at the existing pictures, the spacing of the holes on the edge of the the cap suggests that there might be two additional holes not shown.

    Sorry if that's the case, but the existing pictures only show 14.
     
  17. Fordors
    Joined: Sep 22, 2016
    Posts: 5,855

    Fordors
    Member

    I found information that states the BN-8d-2 Scintilla magneto was used on the 1928-'34 Minerva AL automobiles and the AL used an inline eight cylinder engine.
     
  18. Hillbilly Werewolf
    Joined: Dec 13, 2007
    Posts: 542

    Hillbilly Werewolf
    Member

    20230117_184401.jpg

    Arrows and numbers on cap clearly indicates 18 holes. Not sure why you are fighting this so hard. Man with it in his hand says it has 16+2.
    I know it is the internet, and everyone here is retarded, but give the man credit for being able to count up to 20.


    ETA: here is the zoomed in picture, without my fat finger scribbles
    20230117_183640.jpg
     
    Last edited: Jan 17, 2023
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  19. tubman
    Joined: May 16, 2007
    Posts: 7,417

    tubman
    ALLIANCE MEMBER

    All I can say is that the pictures posted show only 16 holes, not 18, and the 7 + 9 - 16 combination is very unusual and misleading. If you can see 8, 9, and 10 on your diagram, you must have X-ray eyes.

    Carry on. I hope it works out.
     
  20. nrgwizard
    Joined: Aug 18, 2006
    Posts: 2,830

    nrgwizard
    Member
    from Minn. uSA

    That is one neat distributor. I'd run it for the looks alone... :D .
    Marcus...
     
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  21. RaceFink
    Joined: Nov 6, 2022
    Posts: 34

    RaceFink

    20230118_154449.jpg View attachment 5622821 View attachment 5622821 View attachment 5622821 20230118_154559.jpg 20230118_154606.jpg 20 is max I can count, so 18 is a real challenge
    may be some can check that I am right with 9 lower 7 upper and two for coil
    I do searching last night in net where the distributor original come from.
    There are no Europe 16 cylinder, so I think it comes from a 8 with dual spark. The only I found is the Bugatti that was in the Royale and in trains. Yes they use gasoline motor in trains, not one four of them in one train!!! But the cap looks not like mine
     
  22. patsurf
    Joined: Jan 18, 2018
    Posts: 1,486

    patsurf

    well,at last we CAN see it's for an 8 cyl twin--bruce needs it for his elco
     
  23. tubman
    Joined: May 16, 2007
    Posts: 7,417

    tubman
    ALLIANCE MEMBER

    My apologies. Thanks for the pictures; everything is clear now. That is cool. I just hope the cap and rotor are good. I had a difficult time finding a rotor for my Seagrave, but finally found one.
     
  24. Carter
    Joined: Mar 18, 2006
    Posts: 1,524

    Carter
    Member

    Can't find a picture of the Minerva AL to confirm, still think it's quite probable, but I did find a picture of the Type 49 Bugatti, and it looks like it could be a match. The cap looks the same at the very least.

    Screenshot_20230118-115816~2.png
     
  25. Fordors
    Joined: Sep 22, 2016
    Posts: 5,855

    Fordors
    Member

    A3D9F8B2-E95C-45A6-93CA-EE4975B84BC8.jpeg

    As said yesterday the Minerva AL had a straight eight.
     
    kadillackid, 41 GMC K-18 and Carter like this.
  26. RaceFink
    Joined: Nov 6, 2022
    Posts: 34

    RaceFink

    WOW yes it looks that the Bugatti 49 one this distributor come from :D
    Not sure should I am happy ore not because that made spare parts very expensive
    The BN8d is a single fire distributor and used on cars like Ford German V8 Flathead TATRA and some French and here the Belgium Minverva. I hope the BN8d-2 is the dual fire version and I can use spare parts from

    THANK YOU ALL !!!!!
    this is the second Bugatti part on my project
    during the surch I found that my fuel pump are used on Bugattis too View attachment 5622978 20221207_190048.jpg View attachment 5622978
     
  27. FishFry
    Joined: Oct 27, 2022
    Posts: 294

    FishFry
    Member

    So much for the advice "always keep your spark wires at least 4mm separated" :D

    upload_2023-1-18_5-32-55.png
     
  28. Carter
    Joined: Mar 18, 2006
    Posts: 1,524

    Carter
    Member

    @RaceFink
    Based on the somewhat limited information I can find the Minerva AL was a dual plug straight eight, and used a Scintilla BN8 mag, so likely the same unit or some variation of the unit used on the Bugattis.
     
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  29. G-son
    Joined: Dec 19, 2012
    Posts: 1,430

    G-son
    Member
    from Sweden

    You could be looking at the engine that made them realize why separating the wires is a good idea. ;) Or more likely, with a low power ignition system, carbs running suitably rich, and a low compression ratio (compared to what we've become used to in later years), there weren't any issues.
     
  30. ronnieroadster
    Joined: Sep 9, 2004
    Posts: 1,117

    ronnieroadster
    Member

    There comes a time when the idea of running something so different turns out to be just not worth it. This looks like one of those times. There's no need to run dual plugs on a flathead no additional power will result and the tuning will not improve. The cool factor is the only reason to even consider such an odd dizzy. :cool:

    Something to be concerned about as noted above with the plug wires so close together there a great possibility of cross firing taking place between the wires this certainly will light up the night when running. :eek:
    Ronnieroadster
     
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