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Dual points, only spark from one set? HELP!

Discussion in 'The Hokey Ass Message Board' started by Hyfire, May 26, 2012.

  1. Hyfire
    Joined: Jun 18, 2004
    Posts: 1,232

    Hyfire
    Member

    Hello guys,

    I'm working on a 1958 Chrysler and got spark from the rear points, but no spark from the front points.

    It opens and closes but no spark. I cleaned the contacts and they seem to be good. Also, new coil, condenser and ballast resister...

    ANY IDEAS???

    Thanks,
    Josh
     
  2. Canadian Eh!
    Joined: Jan 21, 2003
    Posts: 51

    Canadian Eh!
    Member

    Make sure the plate inside is secured in the right position.spent three hours today messing with a Mallory dual point to find one of the screws keeping the plate in place was loose and thus throwing internals out of alignment.
     
  3. Hyfire
    Joined: Jun 18, 2004
    Posts: 1,232

    Hyfire
    Member

    Got it! Thanks!

    Josh
     
  4. kwoodyh
    Joined: Apr 11, 2006
    Posts: 641

    kwoodyh
    Member

    Check the connection (wire) between the points for continutity.
     

  5. Dominick Hide
    Joined: Dec 13, 2007
    Posts: 206

    Dominick Hide
    Member

    Duel points only produce one spark. The opening and closing of the points overlap, giving a longer dwell so that the coil can absorb more energy for a stronger single discharge, not two shots.
     
  6. Hyfire
    Joined: Jun 18, 2004
    Posts: 1,232

    Hyfire
    Member

    Thank you guys.

    I discovered this the hard way Dominick, thank you! I moved-on and kept troubleshooting. Ended up the parts store sold me the wrong condenser. Back up and going!

    Thanks guys...
    Josh
     
  7. Mike51Merc
    Joined: Dec 5, 2008
    Posts: 3,840

    Mike51Merc
    Member


    This is not always true. There are some systems that divide the cylinders in half and share the duty. You can tell by counting the lobes -- four lobes on a 8 cylinder distributor.
     

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