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Bouncy tachometer

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Old 07-20-08, 09:57 AM
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Bouncy tachometer
Tach goes kinda crazy at about 3k or so, then it just bounces all over the gauge, any ideas??
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Old 07-20-08, 09:23 PM
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Any common problems like this??
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Old 07-20-08, 10:02 PM
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The problem is when the solder in the back of the tach starts cracking. All the soldering points have to be re-soldered and it should work like new. There is a write up here:

https://www.rx7club.com/3rd-gen-archives-73/fix-tach-17247/

good luck.
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