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Old 04-25-2021, 05:51 PM
tomc tomc is offline
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Default 1966 GTO Factory Tach

I have a 1966 GTO with a stock tach. There are two terminals- with a red insulator and with a white.

Thank I connect the neg coil wire to the red- I get nothing.

When I connect to the white, it goes to 8000 RPM

The dash ground is solid.

What am I doing wrong?

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Old 04-26-2021, 11:40 AM
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Greg Reid Greg Reid is offline
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What kind of distributor? I know the HEI ignition will cause problems with an OEM, pre HEI tach.

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Old 04-26-2021, 11:46 AM
tomc tomc is offline
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Quote:
Originally Posted by Greg Reid View Post
What kind of distributor? I know the HEI ignition will cause problems with an OEM, pre HEI tach.
Factory Distributor with points

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Old 04-26-2021, 12:46 PM
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Greg Reid Greg Reid is offline
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Try to contact Peter Serio if he doesn't see this first. He is the gauge guru around here.

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