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Sticky Tach

SaxMan

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When I'm out on the back roads, I'll usually will give Baby Blue a good hard run in 2nd gear up to around 5000 rpm once per drive Lately, I've noticed the tach seems to get hung up at 4000, even though I can tell the engine is turning faster. The tach will then jump to the actual engine speed. Fortunately, I haven't over-revved the motor. Anyone had an issue like this before? I've had the bouncy speedometer issue, but I know the tach is electrical, not mechanical, at least up to the actual gauge.

I was going through my mileage logs and found I put over 2,000 miles on the Sprite this year. That's the most I've put on the car since 2016. Funny thing is that I never really went anywhere. Almost all the driving were back road runs with my daughter within a 20 mile radius of our house.
 
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SaxMan

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And, of course, as soon as I post, I found a similar post from 2013 that is helpful.
 

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Yoda
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Here's a related thread I created a few years back (2017). It might be useful (though a mechanical gauge, so maybe not).
 
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