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Good  luck with your project’...  Enjoy your classic motoring...
Fixed price repairs are based on the assumption that unit/s received
‘original & complete’... a surcharge may be applied to cover
missing  parts etc...  If in doubt send in the unit for inspection

If  you  found this web site via a ‘search engine’ please
 check that you are looking @ the
latest version... click here
Mileage correction
Other services
Post & packing
Contact details
Rev counters
Jaguar XK 120 ( 1948 / 54 )
2019.1 M
Parts Order E-Mail Link
Payment options
Payment options
Payment options
Payment options
JDO Instruments
Classic Car Instrument Repairs ( Est 1963 )
Fixed price repairs for most British & European Classic Car Instruments
48hr service  
available... Why pay more & wait longer ! No UK vat
Tele: (UK)  01535 672125    Mobile / SMS:  07831 886545
Please check the  FAQ’s page  BEFORE ringing / emailing... thank you
Rev-Counters  Repaired / Serviced £95 plus p&p
Most Cable driven magnetic units* &  Electronic: Smiths / UK-Jaeger / VDO

The fixed price quoted is for the repair / service & calibration of a Rev-counter ‘AS RECEIVED’
If you require the unit
Re-calibrating & / or the Polarity changing  due to a change of  engine / wiring etc a surcharge
may be payable depending on the movement... please ask

Please specify: the number of cylinders /  type of ignition ( points OR electronic ) & the cars earth polarity on your order

An  upgrade service  is available for most early Rev-counter’s ( including cable driven units )
to run with either ‘Points’ or
‘Electronic Ignition’ including ‘123 ignition’    surcharge applies

Smiths RVC units can be re-calibrated to suit : ‘Wasted Spark’ ( DIS ) ignition systems e.g. No Distributor   
( a connecting diagram is normally included with all repairs / upgrades etc )
*For ‘Governor Units’ OR  ‘Chronometric Units’ ( eg. with ‘off-set cable drive’ ) please add 50% surcharge
Please note we do NOT repair DIGITAL DISPLAY  Rev-counters
Please note we do NOT repair DIGITAL DISPLAY  Rev-counters
Connecting diagrams
Jaguar  XKE  or ‘E’-type ( 4.2 )
Rev-counter upgrades
Rev-counter upgrades
Rev-counter upgrades
New Bezels & fitting gaskets
New Bezels & fitting gaskets