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4/4/13 11:28pm - Original Message: 'Just got my clock working again (Quartz conversion this time)'
daveo76
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Vancouver, WA - USA

Vette(s):
1976 Silver/Firethorn. L48, 4spd. Original 2 bolt, vortec heads, 9.4:1 CR, Speed Pro Cam: 224/224@0.050, 112 LSA, Eagle Steel Crank.

Joined: 8/25/2005
Posts: 690
Last summer I thought I got it working as I had two of the originals and one of them started ticking when I wired it up on the bench.  I spent hours calibrating and such and never could get it to not lose or gain a second every few hours.  Well, after I got it in the car it worked for a month or two and then quit.  (and it may have been draining my battery after that)  So I bought a "Borg" quartz conversion kit.  Put it all together (instructions were decent) and wired it up on the bench.  It keeps perfect time, let it run for three hours just now and it was spot on down to the tenth of a second!  One "winter" project down - well it will be after I put the dash back together. 

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1976 Silver/Firethorn.  L48, 4spd.  Original 2 bolt, vortec heads, 9.4:1 CR, Speed Pro Cam: 224/224@0.050, 112 LSA, Eagle Steel Crank.
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4/5/13 5:30am - Reply: 'Re: Just got my clock working again (Quartz conversion this time)'
manget1 Lifetime Member
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Indianapolis, IN - USA

Vette(s):
Silver 1974 Convertible - L82 4 speed Low miles (was only 8,900 when I bought it in March 2006) - Now 42K miles. Original owner bought it as an investment for son's college expenses. 2008 Jetstream Blue Convertible - DAILY DRIVER!!

Joined: 9/3/2006
Posts: 2312
Congrats Dave! I bought a clock off eBay, had it reworked and then installed it. It does keep time but like your previous one, it does lose time, about 5-6 minutes a day. I did not go quartz. Maybe next time...

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4/5/13 7:43am - Reply: 'Re: Just got my clock working again (Quartz conversion this time)'
Case75
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, - Canada

Vette(s):
1975 Corvette 383 stroker w/Patriot 190 heads, Eagle stroker kit, Comp 279TH7 cam, DUI distributor, Edelbrock 7116 intake, Edelbrock 1806 carb, Hedman Hedders, TH400 w/TCI Breakaway 2400 stall, Transgo 1-2 shift kit.

Joined: 6/19/2012
Posts: 230
I too went the quartz route last year. It's been in the car all winter and has kept perfect time. Car has been stored on a Ctek battery charger.

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Build Date: May 7, 1975. 383 w/267 RWHP/310 RWTQ
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4/5/13 8:46am - Reply: 'Re: Just got my clock working again (Quartz conversion this time)'
Jaws79 Lifetime Member
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Sykesville, MD - USA

Vette(s):
1979 Corvette Coupe Corvette Light Blue Midnight Blue interior Mirrored Glass T-tops

Joined: 4/27/2008
Posts: 4180
My clock didn't work when I got my 79. When I called in about getting a new one, the guy said "Do you want it to be original or do you want it to work?" He prceeded to tell me they would not guarantee the original clock whatsoever! He told me that the original style usually ALWAYS quit or have other problems. While they do work for some people, that is the exception. The only way to tell the difference is that the original second hand  "jumps', while the quartz one is a smooth sweep. This is the fifth year that my clock has been in and has kept PERFECT time all along! Still love the analog clocks in any car best!
 
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4/5/13 12:21pm - Reply: 'Re: Just got my clock working again (Quartz conversion this time)'
Adams' Apple Lifetime Member
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Duncanville, TX - USA

Vette(s):
#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light Multiple NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas

Joined: 11/8/2003
Posts: 18435
Original clocks have a set of points in them, similar to a turn signal flasher. The points opening/closing is what causes the clock hands to "jump", or step, instead of having a smooth sweep. These points are usually what causes the clock to stop working, as they burn over time, just like the points in your ignition system, for those of us with point type ignitions.
The points burning/wearing, and sticking closed is also a big factor in draining the battery overnite, and in several cases, has been the cause of fires in the car. Censored

There are quartz movements that do kinda-sorta mimic the "step" of an analog clock, but the steps are much quicker.


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4/6/13 10:10pm - Reply: 'Re: Just got my clock working again (Quartz conversion this time)'
daveo76
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Vancouver, WA - USA

Vette(s):
1976 Silver/Firethorn. L48, 4spd. Original 2 bolt, vortec heads, 9.4:1 CR, Speed Pro Cam: 224/224@0.050, 112 LSA, Eagle Steel Crank.

Joined: 8/25/2005
Posts: 690
Yep, I do kinda miss the tick tock sound and the mechanical jump, but I'll take reliability and safety over the retro aspect.  No going back now!  Thanks for the info, guys.  

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1976 Silver/Firethorn.  L48, 4spd.  Original 2 bolt, vortec heads, 9.4:1 CR, Speed Pro Cam: 224/224@0.050, 112 LSA, Eagle Steel Crank.
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4/7/13 10:02am - Reply: 'Re: Just got my clock working again (Quartz conversion this time)'
lukesvette Lifetime Member
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HOWELL, NJ - USA

Vette(s):
1979, Targa Blue (72 Color), Pace Car rear spoiler, L88 hood, Dark blue factory interior, 525HP 406, HD 700R4, 370 gears,Steeroids, composite rear spring, TT IIs wrapped in T/A Radials.

Joined: 5/18/2004
Posts: 6780
I did the quartz conversion also. Keeps time to the minute!! Thumbs Up

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