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Clock doesn't work...
#1
Wrench 
My center console clock isn't working. It's never worked since I've owned the car myself. Any thing I can check within the clock and or replace? I havent checked the voltage wire that goes into the clock but I assume it's probably within the clock. When I shake it I hear a rattle. I am going to open it up but wanted to see if anyone has experience with this....otherwise does anyone have an extra original one, that works, for sale?

   
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#2
A well respected source of clock repair:

http://www.rccinnovations.com/index.php?...u-services

he did my tach and it works great.

'Mike'
73 Convertible - 351C/4V CC heads/4bolt/forged flat tops/comp 270/rhodes/mallory unilite/tri-power/hookers/glasspacks/c6/3.50 limited slip/Gear Vendors/Global West sub frames, strut rods and shelby style traction bars/ Rear sway bar/tilt steering (not original)

Pics of modifications included in:
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#3
Thanks,
I am gonna do that.
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#4
normally the 2 coils inside the clock burn up after years of service.
I repaired mine when I bought the clock (I used parts off my 77 cougars clock) it worked for 3 years, and the replacement coils I used are now burnt up.
I might end up doing the quartz conversion in the future.

[Image: 2zem9nk.jpg]
Iyman
1972 Mustang convertible run_horse  
Visit the Mustang Car Club of New England Facebook Page

Visit the Mustang Car Club of New England Web Page

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#5
I've fixed several over the past thirty years. 80% had pitted contacts. Filing with an ignition file corrected most. The ones with burnt coils I skipped over. Rather easy to work on, just be gentle.
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#6
You can build one of these

http://repairfaq.cis.upenn.edu/sam/sgmccsch.pdf

http://repairfaq.cis.upenn.edu/Misc/mustang.htm


mike

[Image: 1_11_11_13_11_50_27.png]
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#7
what always murders the clock is when the car sits, the clock is running and the battery runs down unless its on a battery tender. right before the voltage goes under 12 volts.
the battery is low enough that the points get stuck closed due to low voltage and then the coil overheats and blows and the clock is dead.

99% of the time the coil is burned at the surface right on the top coil. so with effort you can pull the clock apart, then identify the break in the coil, un-wind one turn enough to make a bridge to the connector then solder the wire back restoring the coil. then the points need to be filed and the clock oiled.

there is also a way to adjust the clock to make it keep time better. mine is off by hours in a few days.

reminds me i really need to service my clock its been like 8 years Sad
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#8
Good info...ya I sent it off to Rocketman
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#9
My console clock doesn't work either, I figure it's just one less thing to drain the battery when it's setting for days or weeks at a time, but I don't wear a watch either.

Jim

M code 71 Mach 1, 351 4V Cleveland, Ram Air (not factory), C6 Trans, 3.5 rear
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#10
72HCODE;172808 Wrote:what always murders the clock is when the car sits, the clock is running and the battery runs down unless its on a battery tender. right before the voltage goes under 12 volts.
the battery is low enough that the points get stuck closed due to low voltage and then the coil overheats and blows and the clock is dead.

99% of the time the coil is burned at the surface right on the top coil. so with effort you can pull the clock apart, then identify the break in the coil, un-wind one turn enough to make a bridge to the connector then solder the wire back restoring the coil. then the points need to be filed and the clock oiled.

there is also a way to adjust the clock to make it keep time better. mine is off by hours in a few days.

reminds me i really need to service my clock its been like 8 years Sad

I thought the clocks were self adjusting, every time you reset the
clock it is supposed to "learn" and keep better time. I set mine maybe
twice a month and never more than a couple of minutes.

mike
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