Factory Tach

Reply Subscribe

Thread Tools

Search this Thread

Dec 4, 2003 | 08:25 PM

#16

jelzy

Thread Starter

Freshman User

Joined: Nov 2003

Posts: 48

Likes: 0

My instrument cluster had gauges but not tach. It bolted in place and I just used some tap and run connectors to connect to the wires in the harness at the plug 8 and G ground, C to the tach wire in the harness (I used a portable tach to make sure the wire was correct before connecting my actual tach) and B was 12 volt power. It was easy and cheap.

Dec 5, 2003 | 05:32 AM

#17

82F100SWB

Post Fiend

Joined: Jan 2000

Posts: 5,330

Likes: 17

From: Dryden, ON, Canada

Pin 8 is only grounded in a V8 application, for a 6 cyl truck, it is left unhooked.
Evan

Dec 5, 2003 | 07:24 PM

#18

hermangarza

Elder User

Joined: Oct 2002

Posts: 503

Likes: 0

by what im reading here most ford truck tach were electrical where you would only hook up 4 wires. if this is true for all fords then a tach from another car could be hooked up by wires and then a housing could be made for it.

thanks

Dec 5, 2003 | 10:59 PM

#19

howler

Senior User

Joined: Nov 2003

Posts: 154

Likes: 1

I think the 76? and earlier were mechanical tach's, so the later ones were the electrical

Dec 10, 2003 | 08:40 PM

#20

hermangarza

Elder User

Joined: Oct 2002

Posts: 503

Likes: 0

would my theory work? as i stated before

thanks

Dec 11, 2003 | 05:33 PM

#21

jelzy

Thread Starter

Freshman User

Joined: Nov 2003

Posts: 48

Likes: 0

I used a Hayes Manual and the info in this sight to give me a general idea of what to do. Actually the Hayes manual was not correct but if you look at the instrument cluster connector one of the wires does not go anywhere. That was the coil wire. I grounded the G and 8 terminal. Found switched power from the ignition and hooked to B. Worked fine.