1968 MGC Speedometer Fix

In this video I will remove the speedometer gauge from the instrument panel, and also remove the speedometer cable. I will discuss how to bench test a speedometer and how to re-install once repairs are made. I will not discuss any portion of making internal repairs to the unit. I sent my speedometer off to JDO Instruments in the UK (www.jdo1.com/). They did a fabulous job for a very reasonable price.

[@Lemma01]

Very glad you shared this - I was going to do my cable (I'm getting nothing at all) but will get them to fix it at the service. Dare I say the drill sounds smoother at 70mph than a standard C-Six!

[@JRsGarage]

Happy to help, good luck getting it sorted.

[@Madeinwem]

Top Tip: tie some cord on the speedo end of the cable before you remove the old cable, then tie the cord on the new cable and pull it through.....

[@JRsGarage]

Thank you for the tip.

[@Safari3601]

The reason the gauge was reading low it the magnet in the gauge lost it strength after so many years, all they did was magnetize the magnet back to it's proper strength. If you over magnetize the magnet the speedometer will report over speed , kind of a black art.

[@JRsGarage]

Good to know, thanks.