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Oh my God! I was fiddling with the clock, took it apart, lubed it here and there, and whalaa, it works. I wonder what the percentage is of working clocks in these old vettes? 10%? Funny, that now when you sit the car, you here tick-tock tick-tock. You just don't here that in newer cars.
Yeah, like you said, it started running in my hand - freaked me out! No power to it. It ran for a bit this way, then, after hooking it up in the car, it's been going for three days now.
The old analog clocks have a set of points that, when making contact they "spring apart" creating the rewind. The tick you hear every two minutes or so is the points making contact and then springing apart again.
In addition to lubing with a light oil, it's important to use some very fine emery to clean the point contacts just as you would with your distributor points. The points fail because electrolysis transfers metal from one side to the other until it can no long function.
My clock has always worked and mine is in storage for 6 months of the year with NO battery. In the Spring when I get it out of storage; just install the battery, adjust the clock and it's good to go.
Mike
That "springing apart" is the rewind solenoid doing its job. Every two minutes [or so] those contacts come together. That connects the solenoid into the circuit. The solenoid then actuates which causes the spring to wind. As the spring unwinds, the contacts get closer and closer to touching. When they do, REWIND! Neat mechanism...when it works.
My 1980 clock works. I love hearing the sound of the clock when I am in the car. But I love grandfather clocks; which make those kinds of sounds all the time. So I am biased.
I used a writeup I found on here to resurrect mine from the dead. I used CRC CO Contact cleaner to clean the mechanism, some tissue paper to clean the points, and some WD40 to lube it up. Goes like a champion! Only problem is the adjuster gear has come away from the adjuster shaft. I have to sort the oil pressure gauge, so it's on the ever growing to-do list!
Last edited by mrmagrath; Nov 28, 2011 at 09:11 PM.
Reason: Spelling
my '80 clock had worked for a little over a year, the contacts burnt and the spring stretched itself out to the point where it won't pull the contacts back together. took it apart and cleaned it up and it worked for two months after that. i've worn a watch for the last 29 years and it doesn't bother me at all.
The old analog clocks have a set of points that, when making contact they "spring apart" creating the rewind. The tick you hear every two minutes or so is the points making contact and then springing apart again.
In addition to lubing with a light oil, it's important to use some very fine emery to clean the point contacts just as you would with your distributor points. The points fail because electrolysis transfers metal from one side to the other until it can no long function.