Installing a Tachometer?
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Laughing Gas
Joined: Oct 2007
Posts: 773
Likes: 1
Installing a Tachometer?
'64 F100, stock 292 with headers and Pertronix electronic ignition.
I was wondering if there is a relatively easy way for me to buy and install a tach in my truck. I'd like to see what kind of RPM's I'm spinning at different times when I'm driving as well as for testing/calibration purposes.
Questions:
- Where/who can I buy a tachometer that will work for my application from?
- Is it difficult to install? How does it work?
I was wondering if there is a relatively easy way for me to buy and install a tach in my truck. I'd like to see what kind of RPM's I'm spinning at different times when I'm driving as well as for testing/calibration purposes.
Questions:
- Where/who can I buy a tachometer that will work for my application from?
- Is it difficult to install? How does it work?
Elder User
Joined: Mar 2008
Posts: 978
Likes: 1
From: darrington wash
you can buy one from shucks or napa or car quest pretty much any place that sells a car part SHOULD work... as for instalation... its simple... 3 or 4 wires depending on the model... one goes to the positive side of the coil... another goes to ground... and positive on the battery... and if you got the one with 4 wires, the 4th gose to the light switch... so that when you turn on the lights... it turns on the light in the tach... and then there is a switch on the back for 4 6 or 8...[the number of cylenders... so select 8... but be cautious... there was a guy in the 61-sixty what ever... saying that his tach was reading correctly when the switch was selected to 6... but he had a V-8] then just mount it where you want it...
if you get a new one, you will get the instructions in the box with all the mounting wires and everything
if you get a new one, you will get the instructions in the box with all the mounting wires and everything
Last edited by billy12360; May 28, 2008 at 10:44 PM. Reason: wrong info
Elder User
Joined: Dec 2006
Posts: 559
Likes: 0
From: Redondo Beach, CA
Well billy is almost right. The wire that he sez that goes to the #1 wire on the distributor actually goes to the + side of the coil. If you hook it up as he stated you get , what 40,000 volts to the tach instead of 12 volts.
my S/W has three wires, one to ground, one to coil(actually I have it plugged into my MSD but basically the same) and one for lights.
Y-Blockhead
my S/W has three wires, one to ground, one to coil(actually I have it plugged into my MSD but basically the same) and one for lights.
Y-Blockhead
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