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jerrywmalcolm

dash clock

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hi,  i changed the speed dometer cable,  took the whole,  I mean WHOLE dash apart,  and I'm sure the dash clock worked,  NOT now,  theres electic going  to the clock,  but no working clock,  is the clock gone?,  maybe need a new one?,     if so,  any one out there have one for sale?,   for  a 69 mach 1,   thanks    jerry 

69 mach 1.JPG

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Ya, those clocks are pretty sensitive. Mine wasn't working, so I watched a rebuild vid on you tube and refurbished it. It worked great until I installed it, and watched the minute hand move faster than a second hand, until it didn't. I've thought of getting a quartz unit,  as many are happy with them, but mine sits with non moving hands. 

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Sometimes a cleaning, lubrication, and/or filing the points can bring them back for a while. There's always the quartz conversion route, too, like RPM mentioned. Otherwise, at least it's right twice a day.

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I've found the majority of the clock harnesses, as installed in the factory harness, have bad continuity due to the tight turns in the wiring under stress.  That could be your problem.

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On 6/7/2022 at 7:54 AM, Midlife said:

I've found the majority of the clock harnesses, as installed in the factory harness, have bad continuity due to the tight turns in the wiring under stress.  That could be your problem.

Randy,

do all stock non-tach 1970 dash harnesses have the provision for have a factory clocked plugged into them?

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2 hours ago, maxum96 said:

Randy,

do all stock non-tach 1970 dash harnesses have the provision for have a factory clocked plugged into them?

All 69 and 70 underdash harnesses, regardless of tach or not, have provisions for clocks. The wiring for 69's are slightly different than the 70 version.

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2 hours ago, Ridge Runner said:

I have 3 clocks for 69s ,a bit of blowing out and a touch of gun oil and they all started working 

Mine too, just for not very long :)

I even filed the points. Guess I suck. 

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20 hours ago, Midlife said:

All 69 and 70 underdash harnesses, regardless of tach or not, have provisions for clocks. The wiring for 69's are slightly different than the 70 version.

Thanks for the info.  I recently found out I have a deluxe clock dash complete with clock in my stash of parts.  I think I'm going to do a deluxe interior when I get to that point with my car. 

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update,   took clock apart,   after playing with it for a hour or so,  I found one broken wire,  which I resoldered on,  and found that the ground connection has a 2 point connection,  1 for a wirre the other touches the clock  housing which acts as a ground for the whole car,  whch might not be making a connection so I soldered a wire from that to the housing,  and now the clock works fine

69 mach 1.JPG

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On 6/14/2022 at 10:51 AM, jerrywmalcolm said:

to boss429dreamer,    where did you get the quartz conversion kit?

One of the Mustang parts vendors, I believe it was NPD. Glad you got your clock working, hopefully it will continue to run. Mine didn't.

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