Bouncing tach needle - The Supercar Registry

06-01-2008, 03:51 AM

njsteve njsteve is offline

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Re: Bouncing tach needle

I had a similar problem years ago and it was a bad connecting rod.

Good news: the tach needle stopped bouncing.

Bad news: the rod went through the block.

I would say bad ground for the dash/gauge or check the terminal end on the coil to see if it the copper wires are all broken except of a couple strands left. You may want to cut and recrimp the terminal end that mounts on the coil.

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