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17.2.2 - 420G Clock Battery ( Larry Martz,  August 14, 2002 )

the 420G battery clock on p/134: "In October (1969), the mercury-cell-powered
electric dashboard clock was replaced by one powered by the electrical
system of the car itself. The new clock was part no. C.32437 (old
mercury-cell-powered, C.26989) and this became effective at chassis nos.
GID.57384 RHD and GID.77983 LHD. Due to lack of availibility of the
earlier battery-powered clocks, dealers were requested to amend the wiring
of existing cars to suit the new clock."

NOW, I amplify this somewhat -- Nigel Thorley made NO mention of the
electric clocks in the Mark X, because these were NOT battery-powered, eh!
In fact, for 420G owners, check your chassis #s to determine if your 420G
was built before GID.57384 RHD and GID.77983 LHD -- after October 1969 at
these chassis #s, the 420G reverted to the standard clock, powered by the
Cat's electrical system, with NO battery. I hope this helps


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