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Oddfire Distributor Cap ?

Discussion in 'Early CJ5 and CJ6 Tech' started by Gixx, Feb 12, 2007.

  1. Feb 12, 2007
    Gixx

    Gixx Member

    Albuquerque, NM
    Joined:
    Mar 28, 2005
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    111
    I've identified my engine as an Oddfire by the casting number (1381623). When I bought it, it had an even-fire rotor in the points type DELCO distributor. It ran, but not so well. I have installed the correct rotor (hook looking one). My question is:

    Is the odd-fire points style Delco distributor cap different than an even-fire ?

    It runs pretty well now, just wondering if I can get a bit more out of her. I've never seen or heard another odd-fire running, so I'm not sure what one is supposed to sound like. Mine seems to run pretty smooth. Timing is set at 5*. I searched and it seems these will run, but will be under-powered with even-fire distributor parts.

    If the (non-HEI) caps are different, can someone post a picture of what it should look like ?
    Thanks !
     
    Gixx, Feb 12, 2007
    #1
  2. Feb 12, 2007
    sparky

    sparky Sandgroper Staff Member Founder

    Perth, WA
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    Sep 20, 2002
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    9,221
    Unless you bought a marine cap? There aren't even-fire points distributors unless it's a marine engine. Your points distributor is an odd-fire distributor and the cap spacing won't look any different than any other. The spacing is on the cam where the points open and close not in the cap like HEI, and the funny looking rotor.
     
    sparky, Feb 12, 2007
    #2
  3. Feb 12, 2007
    Gixx

    Gixx Member

    Albuquerque, NM
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    I guess THAT is my question,

    Is there a different cap for even vs odd fire engines ?
     
    Gixx, Feb 12, 2007
    #3
  4. Feb 13, 2007
    Phalanxx

    Phalanxx Jeep Newbie

    iraq, texas,...
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    Jan 13, 2004
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    Dist caps? OH yeah!. even fire caps are evenly spaces inside. the odd fire caps have bridges and whanots to connect the electrodes. on the top, you have 8 points (2 are blocked off and they are in like a v8 type pattern) in which to connect wires and the even fire only has 6 evenly spaced. Very distinct...when you finally see the differences bewteen both, you will be able to tell within 1/2 second glance between even and odd (either top or bottom view). i hope this was the question you were asking (i dont want to make it sound so simple and be off..lol)
     
    Phalanxx, Feb 13, 2007
    #4
  5. Feb 13, 2007
    mortten

    mortten I can’t put my finger on it 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Peninsula, Ohio
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    That's only on the HEI distributor. The point distributor only has 6 plug holes. The odd firing is done by the rotor and the cam as Sparky said.
     
    mortten, Feb 13, 2007
    #5
  6. Feb 13, 2007
    Gixx

    Gixx Member

    Albuquerque, NM
    Joined:
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    OK,
    Just to make this as simple as it can be, for those of us with simple minds...

    Points style distributor caps are the same for even AND odd fire engines, right ?

    If I understand this, only the HEI caps are different for even/odd?
     
    Gixx, Feb 13, 2007
    #6
  7. Feb 13, 2007
    sparky

    sparky Sandgroper Staff Member Founder

    Perth, WA
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    As I said above unless it's a marine application (highly unlikely) there are NO points style even-fire distributors so it's a non-issue. Even fire V6s all were made after GM made the switch to HEI...
     
    sparky, Feb 13, 2007
    #7
  8. Feb 13, 2007
    jayhawkclint

    jayhawkclint ΜΟΛΩΝ ΛΑΒΕ

    Oklahoma City, USA
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    Yes. Odd/even points caps are the same (equally spaced) as Sparky indicated.

    HEI caps are different (bridged), as Phalanxx indicated.

    HEI cap:
    [​IMG]

    Really, really good reading:
    http://home.off-road.com/~merls_garage/oddfire.html
     
    jayhawkclint, Feb 13, 2007
    #8
  9. Feb 13, 2007
    Phalanxx

    Phalanxx Jeep Newbie

    iraq, texas,...
    Joined:
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    ooops. figured it couldnt have been that easy and i misread. i didnt know that about the non hei. i love that link..helped me put in my hei the first time and now that just got finished from the machine shop (getting the vacuum advanced removed) i will need to use it again for reinstall. great timing...=)
     
    Phalanxx, Feb 13, 2007
    #9
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