How to feed the clock

[tommykat1 (Tom Taylor - Early 1967 4.2 S1 OTS)]

Wait, what? I’m confused. Where is a series III mentioned anywhere? This series 1 clock won’t fit anywhere near a series III tach.

This clock is for a 1964 or earlier E-Type, Mk 2 or earlier car with a positive ground system. If you hook it up backwards, it’ll be ruined. Likely it’s non functional anyway, but don’t melt it any further by trying to get it to work in a negative ground car. Check the Clocks4Classics solution, as the workings are not polarity sensitive.

And read this post!

Revisiting Jaguar Clock Repair: The Smiths Gold-Plated Contacts Conundrum

As with many of the mechanical items on our vintage Jaguars, the Smiths clocks are a true wonder of 1940s - 1960s technology. But, unfortunately, like some other Jaguar components, the clock was not reliable after only a few years of operation. Mine began its erratic timekeeping after about five years from new (1967 – 1972). It would often stop, and by readjusting the hands I could get it to work again for a time, until it finally quit for good in 1973. When disassembled, a declaration stamped …