260z Tach not working after 280zx dizzy swap. I need a visual diagram please!

[Ducer]

Hey mates, So I just installed a 1979 Electronic dizzy from a 280zx with the E12-80 module on my early 74' 260z, and it's works Amazing.............The dizzy and car is awesome but the tach is my next dilemma.

 

Now I tried to google and searched all the forums, Zcar, hybridz, classiczcar, and I couldn't find an a diagram on how to make the 260's tach work.

 

Please let me know what I must do. So I have the following as info:

 

1. Green/White

2. Green/Red   

These two wires were from the stock distributors pick up.

 

3. Blue wire which was on the negative on the coil (which I assume is the Tach signal?)

 

Now If I hook up the #3 blue wire, or one of the other #1 or #2 wires to the Negative of the coil, it does not start, or when it's running the car will die.

 

I hear that I have to use a 10K ohm resistor? But which wire? Where on the wire? and Where to hook it up to? 

 

Can someone just draw me a crude picture on MS paint and let me see.

 

Here is my set up now. The Blue, Black/Blue, Green/White, Green Red, not used.  Which one is tach and what must I do? Thank you.

 

[Scoota G]

Check out this page!

 

http://datsunzgarage.com/engine/index.htm

[Ducer]

Yes, I've read that, It only gives you the options to buy a 280z tach or buying after market autometer. Im looking to use my 260z tach since it works and now I need to wire it to work.

 

Still need help........

[zeds4ever]

Hey Ducer, did you finally sort out your problem mate.

 

                                                            Regards: Alan.

[d3c0y]

You need to build a signal converter or buy a tach adapter from MSD. They are your options if you want to keep the factory gauge.

[zeds4ever]

WHEN I FITTED A E12-80 280Z DSTRBTR & COIL INTO MY 76 S30 SOME TIME AGO. I REMOVED THE RESISTOR UNIT SITUATED DIRECTLY BELOW WHERE THE COIL IS LOCATED & JOINED THESE TWO WIRES TOGETHER, CNCTD THE BLK/W WIRE TO (+) SIDE OF COIL, THE OTHER BLACK WIRE I CNCTD TO "C" ON MODULE AT DSTRBTR, FROM THE "B"  ON MODULE RAN A WIRE BACK TO THE(+)  SIDE OF COIL .  NOT SURE BUT I THINK THE BLACK WIRE THAT CNCTS TO CIRCUIT SIDE OF MODULE IS WHAT PROVIDES SIGNAL TO TACHO. HAVE YOU CHECKED YOUR TACHO OUT TO SEE THAT IT WORKS OK. YOU CAN DO THIS INDEPENDANTLY FROM WIRING SET UP, I POSTED HOW TO DO THIS SOME TIME BACK.

 

                                        REGARDS: ALAN.