As Chris said, the odometer is geared off of the speedo itself.
I would guess (having taken one apart before) that the gear that does this drive is worn and moving the speedo cable has flexed things slightly and put the gear back into contact for the moment. The rev counter is probably just a dodgy contact on the connector for the instrument cluster, you can bend the contacts closed slightly to improve contact. The rev counter signal is the only green wire.

Jim


-----Original Message----- From: Sonic H
Sent: Wednesday, August 29, 2012 10:17 AM
To: [email protected]
Subject: RE: [Quantum Owners] Mileage

The Haynes manual shows the speedo cable from the gearbox in the instrument cluster but nothing about the odometer. Me wiggling the speedo cable must have moved something to make the odometer work again.

My rev counter is a bit hit and miss, sometimes it will work fine, then not work.

Chris

-----Original Message-----
From: Chris Reid
Sent:  29/08/2012 9:55:33 am
Subject:  Re: FW: [Quantum Owners]  Mileage

one cable from the gearbox, which rotates inside a sleeve. the speedo measures the roational speed of the cable by spinning a magnet and the oddometer counts the number of rotations through a small gear mechanism.

sounds like the mechanicla side of things is on the blink, possibly just wear and tear. newer models are all electronic so don't have this problem

the tacho is normally electronic and usually measures the rotational speed of the alternator.

cheers

--- On Wed, 29/8/12, Sonic H <[email protected]> wrote:


From: Sonic H <[email protected]>
Subject: FW: [Quantum Owners] Mileage
To: "[email protected] " <[email protected]>
Date: Wednesday, 29 August, 2012, 8:44



Andrew,

That's what i thought, it being one cable not two. Gave the speedo cable a quick wiggle, started the car rev counter working :) (does not always work) drove down the street and it was recording miles again. Not sure what I did but it worked.

Chris

-----Original Message-----
From: Andrew
Sent:  28/08/2012 11:55:28 pm
Subject:  [Quantum Owners] Re: Mileage

Chris,

Not seen a 2+2 but on ford sierra and Xtreme bespoke version of speedo/
odometer, the odometer is driven by the same cable as the speedo not 2
different cables, so it sounds like an internal problem. Likely to be
awkward to fix- probably designed to be hard to modify to prevent clocking !

Good Luck.

Andrew


On Tuesday, 28 August 2012 18:03:40 UTC+1, Chris H wrote:

My 2+2 odometer has stopped working t oday but I still have the speedo
working. How does the odometer work? Any help appreciated.

Regards

Chris H



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