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Odd Fire tach

Discussion in 'Early CJ5 and CJ6 Tech' started by Dave Cattani, Nov 22, 2006.

  1. Nov 22, 2006
    Dave Cattani

    Dave Cattani New Member

    Ruch, Oregon
    Joined:
    Sep 23, 2002
    Messages:
    44
    How do you set the tach up for the odd fire v6 with HEI?? It is a 6 cyl, but the dist is a modified 8 cyl cap.................Is it straight forward?? I would like to put a SW tach in my CJ
     
  2. Nov 22, 2006
    toolbox

    toolbox If you get bored, I've got the projects.

    Hamilton, Montana
    Joined:
    Jul 27, 2006
    Messages:
    347
    IIRC you should be able to use the TACH terminal on the cap...I think it's only reading 1 pulse per revolution so it should work with a standard tach (?). Someone here will know for sure.
     
  3. Nov 22, 2006
    sparky

    sparky Sandgroper Staff Member Founder

    Perth, WA
    Joined:
    Sep 20, 2002
    Messages:
    9,221
    Hook it to the "Tach" terminal on the cap.
     
  4. Nov 22, 2006
    53Flattie

    53Flattie Intigator

    Easley, SC
    Joined:
    Sep 23, 2002
    Messages:
    855
    Nothing special about it. Just set the tach to "6cyl" and you're done.
     
  5. Nov 22, 2006
    Dave Cattani

    Dave Cattani New Member

    Ruch, Oregon
    Joined:
    Sep 23, 2002
    Messages:
    44
    I am aware of the tach hookup. Just wondering if it makes a diff to the tach if it is set on 6 or 8 or if that part even matters.
     
  6. Nov 22, 2006
    jd7

    jd7 Sponsor

    Nacogdoches,Texas
    Joined:
    Mar 30, 2004
    Messages:
    1,745
    set tach on 6
     
  7. Nov 23, 2006
    zed

    zed Iowa- Gateway to Nebraska

    central iowa
    Joined:
    Aug 4, 2004
    Messages:
    745
    yep, just set the tach to 6 cyl. i used the old clip that fit the the orig hei tach socket and just ran the wire to the tach. works great.
     
  8. Dec 1, 2006
    Dave Cattani

    Dave Cattani New Member

    Ruch, Oregon
    Joined:
    Sep 23, 2002
    Messages:
    44
    I got it. It works off the firing impulses.
     
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