Factory Tach Wiring - Chevelle Tech
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post #1 of 6 (permalink) Old May 15th, 14, 10:32 AM Thread Starter
Larry
 
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Factory Tach Wiring

I have a '64 Elco with a factory tach and no wiring. There are three studs on the back of the tach but are unmarked.
Anyone know which takes 12V and which takes the coil feed? If I hook it up wrong it will cook it.
Thanx
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post #2 of 6 (permalink) Old May 15th, 14, 12:49 PM
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anthony
 
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Re: Factory Tach Wiring

Top stud with red plastic colar to dist. other stud with red plastic collar to 12v mulit. color. brown wire for dist.
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post #3 of 6 (permalink) Old May 15th, 14, 8:21 PM Thread Starter
Larry
 
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Re: Factory Tach Wiring

Two wires to the distributor?
How does that work and do they both go to the neg post?
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post #4 of 6 (permalink) Old May 16th, 14, 6:44 PM
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grr
 
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Re: Factory Tach Wiring

I asked the same question here......
https://www.chevelles.com/forums/showthread.php?t=614810

My harness only has 2 wires, though.......

Gary


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post #5 of 6 (permalink) Old May 16th, 14, 7:19 PM
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Frank Riley
 
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Re: Factory Tach Wiring

Moderator, how about moving this tread to Electrical & wiring...?

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post #6 of 6 (permalink) Old May 17th, 14, 6:58 PM
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Joe
 
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Re: Factory Tach Wiring

Quote:
Originally Posted by amduran View Post
Top stud with red plastic colar to dist. other stud with red plastic collar to 12v mulit. color. brown wire for dist.
If this is correct, then that is your answer.....


The gauge is grounded thru the metal cluster housing. There's only a +12 volt connection and a signal (from the distributor (-) ) connection...

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