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Tachometer, 1982, high reading

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Old Apr 24, 2014 | 08:13 PM
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onezulu's Avatar
onezulu
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Default Tachometer, 1982, high reading

The tachometer on my 1982 reads very high at idle (3,000 +) and even higher when driving - needle goes fully to the right of the gauge.

I've read several threads which recommend simply changing out the circuit board; many responded to by the good folks at WILLCOX. Is this usually the remedy, or does the needle need to be reset to zero?

I recently acquired the car, and this is one of the projects that I am working on. I'm a banker, not an engineer, electrician, or skilled auto mechanic. But if put into very simple terms and explained, I can find my way around to trying and fixing most problems on the car.

Suggestions from the experts on this matter would be greatly appreciated.

Thanks in advance!
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Old Apr 24, 2014 | 09:37 PM
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Originally Posted by onezulu
The tachometer on my 1982 reads very high at idle (3,000 +) and even higher when driving - needle goes fully to the right of the gauge.

I've read several threads which recommend simply changing out the circuit board; many responded to by the good folks at WILLCOX. Is this usually the remedy, or does the needle need to be reset to zero?

I recently acquired the car, and this is one of the projects that I am working on. I'm a banker, not an engineer, electrician, or skilled auto mechanic. But if put into very simple terms and explained, I can find my way around to trying and fixing most problems on the car.

Suggestions from the experts on this matter would be greatly appreciated.

Thanks in advance!
You don't have to be skilled in the mechanical field to replace this board. It's pretty straight forward.

When you turn the key to "On" (don't start it) does the tach needle go to zero.. if so then the zero set on the board is fine.

Yes it is most common for these old boards to fail...

Willcox
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