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I actually found a working original style clock in a box of spare parts. It seems to gain about 2 seconds in three minutes. It won't take long for it to get way out of time at that rate. It looks like there is a rocking or sliding switch accessible through a hole in the back, but I have no idea how it works or if you can even adjust it that way. Any thoughts?
P.S. I know the sensible thing would be to buy a replacement quartz unit, but I have this working original so I first want to try that route. Call me crazy.....
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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If you send me a PM with your Email I can send you a PDF file that shows how to clean, ADJ and test
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Sounds great, Bob. Thanks. PM is on its way.
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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info should be in your inbox
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Send PMIndianapolis, IN - USA
Joined: 9/3/2006
Posts: 2461
Vette(s): Silver 1974 Convertible - L82 4 speed
Low miles (was only 8,900 when I bought it in March 2006) - Now 54K miles. Original owner bought it as an investment for son's college expenses.
2008 Jetstream Blue Convertible
Mine gains about 5 minutes a day. I just adjust when I get in... Too much trouble to get to it
I wanted a Corvette my whole life, but I never dreamed of all the wonderful people I would meet because of it!
2014216132127r.jpg)
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Send PMModerator
Duncanville, TX - USA
Joined: 11/8/2003
Posts: 22716
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 National/Regional/Chapter NCRS "Top Flight"
#2-1985 Bright Red/Carmine Cp.L-98/auto
Member: NCRS, NCRS Texas, Corvette Legends of Texas
I tell ya, Bob has something for EVERYTHING!! Gotta have one of the largest "libraries" on the planets for stuff like this! And...he don't mind sharin!
Thanks, Bob!!
Joel Adams
C3VR Lifetime Member #56 
My Link 
(click for Texas-sized view!) NCRS
"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"
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Send PMOak Creek, WI - USA
Joined: 5/21/2008
Posts: 2041
Vette(s): 1981 Great White Shark. Red Interior, 350/190 hp. PS, PB (SS), A/C CC, T-Tops. Served three years in Active Duty Army, then Retired Air Force after 34 years! Badger State Vettes Car Club. 175,000 Original miles!! Now own a 1998 C-5!
Yeaaaaaaaaaaaaaaaaaa!! Lets hear it for Bob!!! He is our "answer man" of the week!!
Dan
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My corvette folder is about 4 Gig I wish I new how I could share it I enjoy searching for stuff Its easeir than acually doing it?
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Send PMOak Creek, WI - USA
Joined: 5/21/2008
Posts: 2041
Vette(s): 1981 Great White Shark. Red Interior, 350/190 hp. PS, PB (SS), A/C CC, T-Tops. Served three years in Active Duty Army, then Retired Air Force after 34 years! Badger State Vettes Car Club. 175,000 Original miles!! Now own a 1998 C-5!
rraider1 said: My corvette folder is about 4 Gig I wish I new how I could share it I enjoy searching for stuff Its easeir than acually doing it?
I understand what you are saying!! I am the same way. I love hunting and findind the solutions for corvette problems!!! Keeps me sharp minded!!! But then again EBO would tell you that I have no mind!!!
Dan
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Yep, Bob's pretty cool and I live only about 20 miles away from him! He sent me two different files about rebuilding and adjusting the clock - I should be able to get it working in tick-tock 
shape now.
shape now. 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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in Forum: C3 Electrical, Body and Interior
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