<LI>name: D.G. & my 70 Malibu
<LI>TEAM Chevelle Member #0086
<LI>eBay username: dg98adams
<LI>"Failure is not an option. It's bundled with your software"
Usually what happens is the contacts on the electromagnet get arc'd and won't conduct or they weld and it fries the coils in the magnet.
I took mine apart, carefully hosed the workings down with brake-clean, then misted a fog of WD over it. Some 600G wiped through the contacts, apply power, and tick,tick.
'64 El Camino
383 - TH-350 - 12bolt - 4wh pwr discs
Bedded down for the Winter.
<BLOCKQUOTE>quote:</font><HR>Originally posted by gchandler: The clock in my 66 still works, but it has to be the least accurate timepiece in the entire world.
HAHA! Same for the top-of-the-dash clock in my '65. It didn't run when I got it so I blew out the dust and gave it a light spray of WD-40 (about 20 years ago!) and it's run ever since. Won't keep time, but it runs!
Like the others have stated most of the time the points are arc'd. I usually clean out the dust, soak with WD then gently blow that out also and finally apply a good clock oil. The ones I have repaired seem to be within a minute or 2 a week. The other thing I do is put a diode across the coil (just like they do on a relay) this keeps the arcing down and the points last longer.
Steve Strasemeier (70SS 396, Fathom Blue/White Stripes) My 70SS
The only REAL way to keep your clock working is build a simple 1-transistor circuit inside the mechanism. Instead of the points switching all of the current thru the "kick-back" coil, the points are used to complete a very tiny current thru the transistor's base junction. The transistor will switch the current thru the rewind "kick-back" coil. By choosing the right resistor for base current (I'll be using a Darlington pair) transistor, the contacts will virtually last forever. I used teflon based lubricant. WD-40 offers no protection or lasting value. It's composition evaporates leaving unprotected surfaces.
A word to the wise, if you have any kind of show car, DO NOT get a quartz conversion. Your clock will no longer have a tic-tic-tic motion, but a smooth sweeping motion. Corvette judging events, for example, take off a ton of points if the clock isn't ticking correctly, regardless if it's working. Quartz conversions are NOT reversible.
Dang, I need to get that online clock tutorial done!
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