Mopar Dealer Tachometer

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16 Again

16 Again

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I recently purchased a Mopar Dealer Tachometer in excellent
condition. I want to install it on my Dart but I received it without
any wiring instructions. It has three wires coming out of it. A red
wire, a black wire, and a white or possibly white with green stripe
(wire is faded). Does anyone know the correct hook up since I
don't want to risk damaging it.
 
red-power, white or green-coil, black-ground, this is probably the same for most tachs. Some have 4 wires, white was usually used for the light and green for the coil.
 
Can't remember which post on the coil (+ or -) the wire attaches too, I could check on my car if you need.
 
I only have three wires coming out red, white ,and black. There is
no green wire it just looks as if there was a green stripe on the white
wire at on time. If you could check to see which side of the coil it
attaches when you get time I would appreciate it.
 
You would fry it if you hooked it up to the Pos. side, even faster if it was an aftermarket coil like a Blaster 2 or Accell Super Coil. Ask me how I know...you guys smell something burning? :(
 
I'm printing it also but it looks like this is used on a four
wire hookup. I believe Mopar tachs were made by Dixco.
This also looks as if the red wire is hooked up hot at all
times and I was going to install it on a switched hot. You
are just down the road from me in Palm Coast.
 
16 Again said:
I'm printing it also but it looks like this is used on a four
wire hookup. I believe Mopar tachs were made by Dixco.
This also looks as if the red wire is hooked up hot at all
times and I was going to install it on a switched hot. You
are just down the road from me in Palm Coast.
Click to expand...

Yup. I work at Northrop Grumman in Saint Augustine.
That link covers pretty much all tach installs.
 
Here is 2 older ones that I have, are they similar?

Picture 757.jpg


5_chrlsylertach6.jpg
 
What is confusing to me is that it says black to ground,
red to hot and white to lights and green to coil but I only
have three wires coming out of my tach black,red ,white.
 
My tach looks more like the one on that is mounted
on the column but has a Chrysler logo like the other one.
How many wires does the one on the column have?
 
Can you open it up and make sure a fourth wire didn't slide back up inside it?
 
I have it apart now and there are only three
wires on it. The hole where they come thru
the tach not the case but inside is not large
enough to accomodate four wires. I thought
when I first got it that the base might
be used for the ground.
 
The model number inside the tach is
3514430. It doesn't have switches
for # of cylinders, you remove a resistor
to go from 8 to 6 cylinders.
 
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