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  Quick! Installing a Tach

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Author Topic:   Quick! Installing a Tach
FloJoe
Gearhead

Posts: 317
From: Port Orange, FL, USA
Registered: Dec 2000

posted 01-09-2002 03:34 PM     Click Here to See the Profile for FloJoe   Click Here to Email FloJoe     Edit/Delete Message   Reply w/Quote
Im installing a autometer tach and it tell me to put the red(+) wire to the 12v igniton switich. Where on the switch do I put it???

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Joe Fields
68 Fastback 289ci bored .030 over
C-4
"Scars give character."

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blown 351
Journeyman

Posts: 12
From: Seattle, Wa. 98258
Registered: Dec 2001

posted 01-09-2002 03:59 PM     Click Here to See the Profile for blown 351   Click Here to Email blown 351     Edit/Delete Message   Reply w/Quote
I would assume to the "I" post, as......
the s post energizes the solinoid for start
the center post is power to the ignition switch
the acc post is energized without the ignition.

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ciscokid
Journeyman

Posts: 20
From: Cleveland, TN
Registered: Jul 2001

posted 01-09-2002 04:00 PM     Click Here to See the Profile for ciscokid     Edit/Delete Message   Reply w/Quote
You need to connect it to a 12V circuit that is only active when the ignition switch is on. There are several such circuits, with the radio probably being the easiest and most accessible. Just tap into the power lead for the radio and you're set! That will also get you on the fused side of the circuit, which is a plus.

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FloJoe
Gearhead

Posts: 317
From: Port Orange, FL, USA
Registered: Dec 2000

posted 01-09-2002 04:04 PM     Click Here to See the Profile for FloJoe   Click Here to Email FloJoe     Edit/Delete Message   Reply w/Quote
another question where would i put the lighting wire at?

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Joe Fields
68 Fastback 289ci bored .030 over
C-4
"Scars give character."

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ciscokid
Journeyman

Posts: 20
From: Cleveland, TN
Registered: Jul 2001

posted 01-09-2002 04:22 PM     Click Here to See the Profile for ciscokid     Edit/Delete Message   Reply w/Quote
Tie it into the dash lights and it will come on and off and dim along with them. You may have to pull the dash loose to get to the back where the bulb sockets are, but you could tap into any of the bulb feed wires. You might be able to see them from under the dash if you can twist yourself into a pretzel.

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Fastymz
Gearhead

Posts: 2847
From: Reno Nv
Registered: Apr 2001

posted 01-10-2002 12:25 AM     Click Here to See the Profile for Fastymz   Click Here to Email Fastymz     Edit/Delete Message   Reply w/Quote
quote:
Originally posted by ciscokid:
Tie it into the dash lights and it will come on and off and dim along with them. You may have to pull the dash loose to get to the back where the bulb sockets are, but you could tap into any of the bulb feed wires. You might be able to see them from under the dash if you can twist yourself into a pretzel.

Thats what I did I just used alittle clip on thing.The bad part was I got under the dash and was able to work there.Then when I was done.I couldn't get back out,really I was stuck.I was calling for help,I was pinned under the steering wheel.I thoght my wife was going to have to remove the wheel.It took her my father inlaw and my two kids to help me out. Dam funny now...

SCOOP

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65 coupe,351w,RPM intake,Carter625,shorty headers,2.5 exhaust, Flowmasters,C4,open 8" 2:80,Big Boss 429 hood scoop,Crager SS,Black Suede.
MEM#1240

https://mustangsandmore.com/ubb/Fastymz.html

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