1970 clock







http://www.clockwks.com/The_Clock_Worx.html
As far as the original movement.. It is a Borg Clock and yes it is not a work of art... But it usually be fix by a novice with a little advice.
One of the leading failures in the original movement is the electro magnetic contact points. You'll find these under the wider arm. You can move this arm with your finger to open it up and inspect the contact points. If the contact points are burned or pitted you can use point file to make them smooth again.
I usually spray brake cleaner from a nozzle on the movement paying attention to keep it of the plastic inner frame (on later model cars it was plastic). The brake cleaner comes out of the bottle with some force so be careful. But it also dries very quickly! When you are finished cleaning the movement its very important to let it sit for a while so that all the cleaner evaporates. Compressed air works well but usually wont remove the old oil or debris from the movement. (If you do not allow the cleaner to evaporate before applying power to the clock you could ignite the movement and that wouldn't bring about a happy result).
I then use a lubricant I got from a friend of mine that is a jeweler that repairs watches. I have it in a tiny bottle and use a syringe for a tool to place the oil only where needed in the clock movement.
Before I ever install the clock back in the car or for that matter before I install it back in the can I make sure it cycles multiple times.
Sounds easy and in most cases it will work.. but there are times when it fails! You must also keep in mind that even after you repair the clock it can still fail...
Quartz Click Kit:
http://willcoxcorvette.com/product_i...oducts_id=2855
And just a note.. this kit comes with a link for a installation video.
Or you can send it in to me and I'll quartz convert it....
09750CONV 1968-1982 Clock Conversion Service, Quartz Movement. 68-82 $130.00
Willcox
Last edited by Willcox Corvette; Oct 3, 2011 at 10:29 PM.
The original clock is an electro-mechanical movement which has a normal balance wheel type mechanism...but it is powered by a spring which is wound via a "pulsed" electrical solenoid. Every two minutes [approximately], a set of contacts on the winding mechanism come together and send electrical power to a solenoid which rewinds a 2-3 minute spring. It's really a pretty neat mechanism. This gizmo even has a time-correction system built into it that corrects for running too fast or slow, whenever an adjustment is made to the clock. If done properly, the clocks can be pretty accurate. Unfortunately, those contacts in the winding mechanism are the "weak link" in the system. After years of those contacts coming together every 2 minutes, the contact support fails from metal fatigue so that the clock will no longer rewind.
But, if you like to tinker, you can investigate; and if that's the problem, you might be able to silver solder or braze that metal piece to repair it. Or, the internal mechanism might just need a good cleaning (no dishwasher duty for a clock mechanism, however
). Just some light spraying with a compressed air/gas bottle and/or some careful cleaning of pivot spindles...or just take it to a local jeweler for check out and cleaning. Be VERY careful with the balance wheel and spring...they are delicate.If any of that "trips your trigger", go for it!! If not....go quartz.
Willcox
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