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1970 Belvedere Tach Wiring

Posted By: michaelphbarnett

1970 Belvedere Tach Wiring - 12/28/19 11:14 PM

what is hooked up to the two terminals on the back of a 1970 Belvedere tachometer? I'm pretty sure the terminal on the right, when viewed from the back, is hooked up to the negative terminal of the ignition coil. I'm not sure about the terminal on the left.
Posted By: Sinitro

Re: 1970 Belvedere Tach Wiring - 12/29/19 12:06 AM

I would assume it for a light...

Just my $0.02... wink
Posted By: NITROUSN

Re: 1970 Belvedere Tach Wiring - 12/29/19 12:14 AM

I would have to look but I thought there were 3 terminals. Ground, keyed 12 volt and tach negative.
Posted By: michaelphbarnett

Re: 1970 Belvedere Tach Wiring - 12/29/19 12:23 AM

I forgot to mention the ground terminal. thanks.
Posted By: michaelphbarnett

Re: 1970 Belvedere Tach Wiring - 12/29/19 11:36 AM

It works! Here's a video of it working. I used my 1988 Dodge Ramcharger AW100 to test it. I was trying to get it off of the fast idle. Thanks NITROUSN.
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