69 Tach question

Discussion in 'Ranchero Tech Help' started by Cindy, Jul 8, 2019.

  1. Cindy

    Cindy In Maximum Overdrive SILVER MEMBER

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    Hey all....my dash project is under way soon, and I’m getting all my new gauges lined up. Got my in-dash tach too, pretty stoked about that. So is it cable-driven, or electric? I’m thinking the latter but not certain. Whadya think?
     
  2. pmrphil

    pmrphil In Overdrive GOLD MEMBER

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    Should be electric - I don't think I've ever seen a Ranchero or Torino with a factory cable driven tach.
     
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  3. Cindy

    Cindy In Maximum Overdrive SILVER MEMBER

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    Ahh okay, thanks phil
     
  4. Cindy

    Cindy In Maximum Overdrive SILVER MEMBER

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    ...do you think there’s a specific wiring harness that I need to use/find? Or can it just be wired in?
     
  5. handy_andy_cv64

    handy_andy_cv64 In Maximum Overdrive SILVER MEMBER

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    Anything can be 'wired in, but you still need the proper wiring diagram in order to do it.
     
  6. Hillbilly

    Hillbilly In Maximum Overdrive

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    Cindy, Auto Crafters sells a pre made factory wire harness for your tach. You have to drill one hole in the firewall then connect their wires to the power side of the ignition coil. The other end under the dash plugs into the tach. Part number = C90Z-17A299A. Phone # 1-800-228-7346. Lighting for a clock should light up the tach too. Hope this helps !
     
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  7. Cindy

    Cindy In Maximum Overdrive SILVER MEMBER

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    Thank you, friend. Ordered and on its way here. -Cin
     
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  8. PonyExpressRider

    PonyExpressRider In Overdrive

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    Cindy,

    My tach has its own wire set, separate from the factory harness, consisting of two wires. They go to the + and - side of the coil!
     

    Attached Files:

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  9. Cindy

    Cindy In Maximum Overdrive SILVER MEMBER

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    Awesome, thanks for the pics, Pony:)
     
  10. Hillbilly

    Hillbilly In Maximum Overdrive

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    Cindy, here is a simplified diagram for how the harness you ordered plugs in. Nothing goes to the points side of your coil. 69 tach wiring.jpg
     
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  11. Cindy

    Cindy In Maximum Overdrive SILVER MEMBER

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    Thanks, Hillbilly, I saved that diagram and will print it out.
     

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