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Tachometer Lead wires
#1
Hey guys can anyone tell me what color wires are suppose to be going to the tach?? Mine was unhooked when I got it, but I have been running a msd tach adapter to make it work. But I want to make sure the 2 lead wires that use to go to the tach are wired together properly. My car had developed a miss last year and I was told that the ignition power ran through the tach leads. So I hoping its just a bad connection. I found a 2 plug connector under the dash with 2 black with blue stripes going to it. Is that the old tach lead??? I have been looking in my factory ford 1971 manual but cant seem to find a schematic??? Any help would be great, thanks.

Also if anyone needs a msd tach adapter let me know, I am removing mine and sending my tach to rocketman to get it converted to work with my msd box without the adapter.

Kevin

1971 Mach 1
408C Stroker
C4 w/3,000 stall
8.8" Rear w/3.73's
Disc brakes all way around.

[Image: 28ivsix.png]




                                                                                             
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#2
turtle5353;125564 Wrote:Hey guys can anyone tell me what color wires are suppose to be going to the tach?? Mine was unhooked when I got it, but I have been running a msd tach adapter to make it work. But I want to make sure the 2 lead wires that use to go to the tach are wired together properly. My car had developed a miss last year and I was told that the ignition power ran through the tach leads. So I hoping its just a bad connection. I found a 2 plug connector under the dash with 2 black with blue stripes going to it. Is that the old tach lead??? I have been looking in my factory ford 1971 manual but cant seem to find a schematic??? Any help would be great, thanks.

Also if anyone needs a msd tach adapter let me know, I am removing mine and sending my tach to rocketman to get it converted to work with my msd box without the adapter.

Should be red/light green stripe.

-jbojo

-john
(jbojo)
351C 4V cc heads, 10.5 : 1 CR, 290 Herbert cam, Flat top forged pistons, forged connecting rods, Atomic efi,
C6 with Gear Vendor overdrive, 3.89 Tru Trac, Hooker Super Comp with 2 1/2" Pypes Exhaust.        

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#3
jbojo;125587 Wrote:
turtle5353;125564 Wrote:Hey guys can anyone tell me what color wires are suppose to be going to the tach?? Mine was unhooked when I got it, but I have been running a msd tach adapter to make it work. But I want to make sure the 2 lead wires that use to go to the tach are wired together properly. My car had developed a miss last year and I was told that the ignition power ran through the tach leads. So I hoping its just a bad connection. I found a 2 plug connector under the dash with 2 black with blue stripes going to it. Is that the old tach lead??? I have been looking in my factory ford 1971 manual but cant seem to find a schematic??? Any help would be great, thanks.

Also if anyone needs a msd tach adapter let me know, I am removing mine and sending my tach to rocketman to get it converted to work with my msd box without the adapter.

Should be red/light green stripe.

-jbojo

Both wires are red/green stripe??

Kevin

1971 Mach 1
408C Stroker
C4 w/3,000 stall
8.8" Rear w/3.73's
Disc brakes all way around.

[Image: 28ivsix.png]




                                                                                             
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#4
Look for a two prong molded bullet plug: one male, one female. Both wires are red/green. The female on the underdash harness is the input into the tach; the male is the output and is directly hooked to the coil.

Let me check your shorts!
http://midlifeharness.com

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