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Another DEAD Tach

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Old Apr 24, 2012 | 06:14 PM
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Default Another DEAD Tach

Hi,
Just finnished putting dash back together. When i turned key on,Tach went to 7000 and stuck. What could have caused this ?
Thanks.
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Old Apr 24, 2012 | 07:30 PM
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My guess is either something either happened to the tach board, or you're not getting good ground.
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Old Apr 24, 2012 | 07:51 PM
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Thanks. I pulled Tach and found a large black spot. In all the threads i read, all had stopped working or didn't work. Mine is the first one to " go to 7000 and stick ".
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Old Apr 25, 2012 | 09:58 PM
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Originally Posted by 78 silver 78
Thanks. I pulled Tach and found a large black spot. In all the threads i read, all had stopped working or didn't work. Mine is the first one to " go to 7000 and stick ".
Did the tach go clockwise to 7K or counterclockwise? Not sure if it makes a difference since the large black spot indicates that your tach board is toast. I'd recommend a replacement tach board from Willcox. Their boards don't look like stock boards but nobody is ever going to see them and they use modern technology as opposed to 1978 technology.



Rick B.
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Old Apr 25, 2012 | 10:34 PM
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Originally Posted by 72LS1Vette
Did the tach go clockwise to 7K or counterclockwise? Not sure if it makes a difference since the large black spot indicates that your tach board is toast. I'd recommend a replacement tach board from Willcox. Their boards don't look like stock boards but nobody is ever going to see them and they use modern technology as opposed to 1978 technology.



Rick B.
Hi,Rick. Tach went clockwise and it was fast. I will get one from Willcox.Just hope the reason for this was just an old board.

Thanks,

Ken
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