[xj] odometer stopped working

So I was driving along and heard a soft ping sound. Like
something flying into the wall behind the dash area.
Thought maybe a rock or something had flown into the engine
compartment. Decided I would find out soon enough if
anything broke. And sure enough a few miles later I noticed
that my odometer was no longer working. So my question is
whether there is a cable or something under tension that may
have broken away? Would this be a part I can buy or is it a
David Boger type replacement. I want to keep the original
odometer to preserve the true mileage on my low mileage car.
Any thoughts, guidance?

Thanks, as always, Kim–
1987 XJ6 Series III VdP Silver Birch
Monterey Peninsula, California, United States
–Posted using Jag-lovers JagFORUM [forums.jag-lovers.org]–

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Kim:
The odometer on your car is in the electronic, not mechanical speedometer;
there is no cable. The odometer reading is transmitted by the transducer on
the transmission - the same one that provides a reading to the trip computer
and to the speedometer. Is your trip computer registering? The speedo?
The clue hear might be the “ping” you heard. There would no likely be such a
sound related to transducer failure and if the speedometer and trip computer
are working but the odometer is not, then the problem is in the gauge
itself, and the sound may have been the odometer mechanism self-destructing!
There are a couple of companies in the US that can repair these units. With
regard to keeping an accurate measurement of distance you can zero the trip
computer now and have that distance added to the recorded distance on the
odometer when the unit is repaired.

Gregory,
Victoria, British Columbia, Canada
1966 3.8 Mk 2, Pale Primrose
1992 Series III V12 Vanden Plas, Black Cherry
2002 X-Type, 5 sp. manual, Anthracite
2004 XJ8, Ebony-----Original Message-----
From: owner-xj@jag-lovers.org [mailto:owner-xj@jag-lovers.org] On Behalf Of
kim stirling
Sent: January-18-11 2:54 PM
To: xj@jag-lovers.org
Subject: [xj] odometer stopped working

So I was driving along and heard a soft ping sound. Like
something flying into the wall behind the dash area.
Thought maybe a rock or something had flown into the engine
compartment. Decided I would find out soon enough if
anything broke. And sure enough a few miles later I noticed
that my odometer was no longer working. So my question is
whether there is a cable or something under tension that may
have broken away? Would this be a part I can buy or is it a
David Boger type replacement. I want to keep the original
odometer to preserve the true mileage on my low mileage car.
Any thoughts, guidance?

===================================================
The archives and FAQ will answer many queries on the XJ series…
FAQs: http://www.jag-lovers.org/xjlovers/xjfaq/index.html
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In reply to a message from kim stirling sent Tue 18 Jan 2011:

There is no cable, I suspect your odometer has broken. I’d buy a
unit from David Bodger, and its amazingly easy to open up the unit
and change the odometer reading to whatever you want.

I’d certainly never trust an odometer reading on these cars if
there was no other supporting documentation.–
The original message included these comments:

have broken away? Would this be a part I can buy or is it a
David Boger type replacement. I want to keep the original
odometer to preserve the true mileage on my low mileage car.


Craig 95 VDP/ 90 DS420/ 94 XJS/ 66 S Type EFI
–Posted using Jag-lovers JagFORUM [forums.jag-lovers.org]–
–Support Jag-lovers - Donate at http://www.jag-lovers.org/donate04.php

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In reply to a message from Craig Talbot sent Tue 18 Jan 2011:

Hi Craig,
I would love to know the ‘‘easy’’ way to get these
speedometers apart. My odometer doesn’t work either and I
see no screws to remove for disassembly. Please enlighten
me. Thanks,
Michael–
The original message included these comments:

unit from David Bodger, and its amazingly easy to open up the unit


Michael Hunter: 97 XJ6, 85 XJ6, 71 XJ6 -all running, usually
Upper Lake, Ca 95485, United States
–Posted using Jag-lovers JagFORUM [forums.jag-lovers.org]–
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In reply to a message from Big Michael sent Wed 19 Jan 2011:

There are no screws. If you remove the speedometer ( push into the
dash, and turn about 1/16 of a turn) you’ll see the black rim has
some small portions that are bent over the body of the speedometer.
Gently pry those up so the pieces no longer grip the speedometer
body. You can then remove the rim and the plastic cover piece that
goes over the face of the instrument. Then you’ll have access to
the workings of the odometer.

It’s been a while since I took mine apart to lube the odometer, but
there is an arm that holds the number wheels. You can spread the
holder slightly to disengage the teeth on the individual wheels and
spin them to whatever position you want, slide them back tightly
together and the odometer will start counting from the new reading.
Replace everything, bend the tabs back down to hold the rim in
place, and reinstert into the car.

None of this will help is the mechanism has a broken part, but if
the wheels are sticky they can be cleaned and relubricated. I used
a drop of oil designed for model railroad locomotives, it does not
go sticky over time.–
The original message included these comments:

I would love to know the ‘‘easy’’ way to get these
speedometers apart. My odometer doesn’t work either and I
see no screws to remove for disassembly. Please enlighten


Craig 95 VDP/ 90 DS420/ 94 XJS/ 66 S Type EFI
–Posted using Jag-lovers JagFORUM [forums.jag-lovers.org]–
–Support Jag-lovers - Donate at http://www.jag-lovers.org/donate04.php

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The archives and FAQ will answer many queries on the XJ series…
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In reply to a message from kim stirling sent Tue 18 Jan 2011:

Is it just odometer, or the speedometer isn’t working either?–
The original message included these comments:

anything broke. And sure enough a few miles later I noticed
that my odometer was no longer working. So my question is


84 XJ6 Dr. Yaroslav K
Dallas, TX, United States
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In reply to a message from commentoris sent Fri 21 Jan 2011:

It is just the odometer. The speedometer and the trip
computer are working fine. After a generous offer of
assistance (thanks, David) I have opted to send my unit out to
a speedometer repair place. In the meantime, there is a nice
open hole in my dash, and I’m having fun just guessing how
fast I am going :wink:
Kim–
The original message included these comments:

Is it just odometer, or the speedometer isn’t working either?


1987 XJ6 Series III VdP Silver Birch
Monterey Peninsula, California, United States
–Posted using Jag-lovers JagFORUM [forums.jag-lovers.org]–
–Support Jag-lovers - Donate at http://www.jag-lovers.org/donate04.php

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The archives and FAQ will answer many queries on the XJ series…
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In reply to a message from Craig Talbot sent Thu 20 Jan 2011:

Thank you, Craig,
I had suspected that those tabs were the key to the mystery
and tampered with them somewhat casually to no affect. I
will apply myself more seriously to the issue now that I
know that I’m on the right track.
Thanks again!
Michael–
The original message included these comments:

There are no screws. If you remove the speedometer ( push into the
dash, and turn about 1/16 of a turn) you’ll see the black rim has
some small portions that are bent over the body of the speedometer.
Gently pry those up so the pieces no longer grip the speedometer
body. You can then remove the rim and the plastic cover piece that
goes over the face of the instrument. Then you’ll have access to
the workings of the odometer.


Michael Hunter: 97 XJ6, 85 XJ6, 71 XJ6 -all running, usually
Upper Lake, Ca 95485, United States
–Posted using Jag-lovers JagFORUM [forums.jag-lovers.org]–
–Support Jag-lovers - Donate at http://www.jag-lovers.org/donate04.php

===================================================
The archives and FAQ will answer many queries on the XJ series…
FAQs: http://www.jag-lovers.org/xjlovers/xjfaq/index.html
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