1972 Mustang with 351w and HEI - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars
LinkBack Thread Tools Display Modes
post #1 of 1 (permalink) Old 04-30-06, 03:34 PM Thread Starter
Registered User
Join Date: Apr 2006
Posts: 1
1972 Mustang with 351w and HEI


I upgrade my distributor to an after market (basically a GM) HEI that has a built-in coil. It has a tach lead which my after market tach work with. I have not swapped out the speedo and dummy lights for a speedo and tach. This OEM tach will not work with the old tach feed from the HEI distributor.

It looks like for ford tach require lead from the coil or tach lead and an igition wire. When we connect the wires to the tach the motor dies.

If I find a wire with 6 to 8 volts on it and replace it for the ignition 12v the tach will work, but it is not accurate.

Does anyone know how to get my OEM tach to work with this after market hei distributor.

72_Mustang is offline  
Sponsored Links

  Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > The Garage - Tech Forums > Engine Specific Tech > Windsor Tech
Gear in this thread - Powered by O'Reilly Auto Parts

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome