Seriously, most of these clocks stopped keeping time a long time ago. They actually have a main spring which is wound up by the "kick back" operation of a set of contacts and an electromagnet. This electromagnet is hooked up with a mechanical linkage to the main spring. Every 1 1/2 to 2 minutes, the contacts come together causing the electromagnet to pull the linkage, rewinding the main spring. Usually, through the years, the contacts stick, burning out the coil, or the original lubricant turns to "glue" seizing the clock mechanism. First, check the clock fuse. If that's ok, reach up behind the clock and remove the power connector. Check to see if you have 12 volts at the connector with either a test light or a DVM, using the car body as ground. If you have 12 volts there, then it's time for a clock overhaul.
I had my clock converted to a quartz movement by Instrument Services, Inc. in Roscoe IL. They also replaced the stem and knob which was missing. I'm sure they will sell you a knob. They are at 800 558-2674
I just had my clock restored by 'the clockworks'. They have original or quartz movement. NOS Borg movement also available. Price for original was under 50.00 I was happy with the service(one day turn around) Phone 800-398-3040, clockwrks.com, 1745 META LAKE RD, EAGLE RIVER WI 54521
Redrum (or Mike)
68 Corvette - 383 CI 427 HP
69 SS Chevelle being updated to Pro-Touring
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