[C2] Tach etc...

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Dec 22, 2022 | 03:44 PM

Vetter62

Thread Starter

Intermediate

Joined: Sep 2022

Posts: 25

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From: Langley BC

Tach etc...

Hey all - does anyone know if the tachometer and odometer in a '66 are tied together in any way? My tach quite working a while back but I noticed later on that the odometer wasn't working either. When I fix the tach, will the odometer work again as well?

Dec 22, 2022 | 03:52 PM

boxster99t

Burning Brakes

Joined: Mar 2010

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Each can work or break independently of the other in my experience. On my 67 the speedometer gears in the cluster stripped (also taking out the odometer/trip odometer) but the tach continued to work.

Dec 22, 2022 | 05:04 PM

TAlvarez

Drifting

Joined: Aug 2021

Posts: 1,401

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From: Sacramento, Ca

The tach is driven by a cable from the distributor. The speedometer/odometer are driven by a cable from the transmission. They have nothing to do with each other.
Ted

Dec 22, 2022 | 05:21 PM

Tuco888

Racer

Joined: Jul 2022

Posts: 374

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From: Hye Texas

If they’re both original then it should be no surprise that they both break around the same time frame.

Dec 22, 2022 | 05:27 PM

Vetter62

Thread Starter

Intermediate

Joined: Sep 2022

Posts: 25

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From: Langley BC

Thanks for the replies 'vette people - that's what I needed to know.

Dec 22, 2022 | 07:42 PM

Avispa

Safety Car

Joined: Mar 2009

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From: Corpus Christi, TX

They're not tied together in any way. Completely independent operation.

Dec 23, 2022 | 06:41 AM

USMC 0802

Drifting

Joined: Jan 2016

Posts: 1,673

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From: CENTCOM, Tampa, FL

USMC

Tach should be an easy fix (start with the cable).

The speedometer / trip meter is not as easy. There is a little gear made out of cheese that fails in the speedo. This will require the dash to come out and the speedo can go out for rebuild.

Good luck!