Clock adjustment
Thread Starter
Burning Brakes
Joined: Nov 2001
Posts: 1,188
Likes: 104
From: Tank sticker? I ain't got no tank sticker! I don't need no tank sticker! I don't have to show any stinking tank sticker!
Clock adjustment
My newly restored original movement clock gains about 35 seconds per hour.
Does anyone know how many seconds per hour equals one hour turn back?
Thanks
Does anyone know how many seconds per hour equals one hour turn back?
Thanks
Safety Car
Joined: Nov 2001
Posts: 4,424
Likes: 619
From: northern CA
I have this problem too with the original clock in my '64 - runs a bit too fast. The clock was running erratic. The rewind mechanism wouldn't 'fire', as it should. Poor contact between the dirty coil-fired points was the problem. These were cleaned and adjusted. The clock gear mechanism was also cleaned and lightly lubed. The clock runs like a champ, now! ..
A bit unorthodox but for adjustment purposes I wired in a small toggle switch and 3 amp fuse into the electrical plug that feeds the clock. The idea was to turn the clock off and let it 'catch up' to the correct time, so to speak. The switch also allows the clock to be turned off so it isn't constantly running when the car sits.
When the clock guts were exposed I didn't see anything obvious, such as an adjustment screw with a + and - , or something that would adjust the clock speed. Perhaps someone who knows these mechanical clocks can chime in with how this is done. I'd like to know, too!
A bit unorthodox but for adjustment purposes I wired in a small toggle switch and 3 amp fuse into the electrical plug that feeds the clock. The idea was to turn the clock off and let it 'catch up' to the correct time, so to speak. The switch also allows the clock to be turned off so it isn't constantly running when the car sits.
When the clock guts were exposed I didn't see anything obvious, such as an adjustment screw with a + and - , or something that would adjust the clock speed. Perhaps someone who knows these mechanical clocks can chime in with how this is done. I'd like to know, too!
Thread Starter
Burning Brakes
Joined: Nov 2001
Posts: 1,188
Likes: 104
From: Tank sticker? I ain't got no tank sticker! I don't need no tank sticker! I don't have to show any stinking tank sticker!
Cheers
Race Director
Joined: Apr 1999
Posts: 10,866
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From: Beverly Hills/Pine Ridge Florida
Mine runs well, when it's running. I keep my battery turned off.
Chuck
Race Director
Joined: Aug 2004
Posts: 15,329
Likes: 2,271
From: NorCal
Another fix......................
...............is to do a Quartz movement conversion.
Did mine 15 years (!) ago; works perfectly and doesn't gain or lose time. Only difference is that the second hand now "sweeps" smoothly where the points movement did each second incrementally. For a driver it doesn't matter; for a show car to be judged I understand it to be a minor (1 point?) deduction. If you're going to have the clock out and the case apart anyway to try and do the adjustment on the points movement you're about 95% of the way towards doing the quartz conversion anyway - and you'll probably never need to mess with it again as long as you own the car - or live!
Did mine 15 years (!) ago; works perfectly and doesn't gain or lose time. Only difference is that the second hand now "sweeps" smoothly where the points movement did each second incrementally. For a driver it doesn't matter; for a show car to be judged I understand it to be a minor (1 point?) deduction. If you're going to have the clock out and the case apart anyway to try and do the adjustment on the points movement you're about 95% of the way towards doing the quartz conversion anyway - and you'll probably never need to mess with it again as long as you own the car - or live!
Race Director
Joined: Apr 1999
Posts: 10,866
Likes: 717
From: Beverly Hills/Pine Ridge Florida
...............is to do a Quartz movement conversion.
Did mine 15 years (!) ago; works perfectly and doesn't gain or lose time. Only difference is that the second hand now "sweeps" smoothly where the points movement did each second incrementally. For a driver it doesn't matter; for a show car to be judged I understand it to be a minor (1 point?) deduction. If you're going to have the clock out and the case apart anyway to try and do the adjustment on the points movement you're about 95% of the way towards doing the quartz conversion anyway - and you'll probably never need to mess with it again as long as you own the car - or live!
Did mine 15 years (!) ago; works perfectly and doesn't gain or lose time. Only difference is that the second hand now "sweeps" smoothly where the points movement did each second incrementally. For a driver it doesn't matter; for a show car to be judged I understand it to be a minor (1 point?) deduction. If you're going to have the clock out and the case apart anyway to try and do the adjustment on the points movement you're about 95% of the way towards doing the quartz conversion anyway - and you'll probably never need to mess with it again as long as you own the car - or live!
Big deduction. I think it's a 25 pointer in the Operations Section . Chuck
Burning Brakes
Joined: Jul 2003
Posts: 868
Likes: 5
The internal adjustment doesn't work by turning it back nor forth....it should but it won't.....they had a idea but it didn't work.
You can try but I have many times and have never had one work...only way to adjust is to take it apart and manually adjust.
Jason
You can try but I have many times and have never had one work...only way to adjust is to take it apart and manually adjust.
Jason
Burning Brakes
Joined: Jul 2003
Posts: 868
Likes: 5
When the clock guts were exposed I didn't see anything obvious, such as an adjustment screw with a + and - , or something that would adjust the clock speed. Perhaps someone who knows these mechanical clocks can chime in with how this is done. I'd like to know, too![/QUOTE]
When you can see the movement there is a small brass half moon ....it slides ...thats the adjustment.
For one not set up best thing to do is to set a small power source up and adjust accordingly you can tell which is faster and slower once you dial in to the half moon.
Jason
When you can see the movement there is a small brass half moon ....it slides ...thats the adjustment.
For one not set up best thing to do is to set a small power source up and adjust accordingly you can tell which is faster and slower once you dial in to the half moon.
Jason
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Instructor
Joined: Oct 2006
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From: Jupiter FL
I agree. the best way to dial it in is when the movents out, hook it to a power source and install the minute hand and run it for several hours. When you see it's gaining or losing move the half moon thingy and run it some more. Once you feel it's pretty close run it for 12 hours to see how far off it is. Looking down at the half moon thing from the top, pushing it a bit to the right should speed it up, to the left, slow it down. Good luck
Le Mans Master
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From: Santa Ana CA
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