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Old Aug 2, 2011 | 03:12 PM
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Default Another Clock Question

I just had a new quartz movement put in my clock, ran perfect for two weeks, now runs slow. So they told me to hook it up directly to the battery. My question is when I hook my mini jumper cables to the clock is their any order to hook onto the prongs on the clock, one prong is vertical the other horizontal. Is one positive and one negative or it does'nt matter. The resaon for this test is that their telling me it's a bad ground on my car.

Thanks Ditch.
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Old Aug 2, 2011 | 03:51 PM
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Yes, it matters. Look at the connector in the car that the clock was connected to. The black wire is negative, the orange is positive. Use that as a guide to hook up your mini-jumper cables.

I have a hard time believing that it's a bad ground. The clock ground goes to the instrument panel ground. If you had a bad ground, there would be other symptoms going on with gauges and lights. My clock had a quartz conversion in it when I got the car. It lasted over 10 years, then gave out. So I got another quartz conversion. It runs fine on the bench, but in the car, it starts and stops. I'll climb in the car after it's sat for awhile, and the clock will be running but it's four or five hours behind. When it runs, it seems to keep good time, but it doesn't want to stay running.
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Old Aug 2, 2011 | 09:01 PM
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Originally Posted by LB66383
Yes, it matters. Look at the connector in the car that the clock was connected to. The black wire is negative, the orange is positive. Use that as a guide to hook up your mini-jumper cables.

I have a hard time believing that it's a bad ground. The clock ground goes to the instrument panel ground. If you had a bad ground, there would be other symptoms going on with gauges and lights. My clock had a quartz conversion in it when I got the car. It lasted over 10 years, then gave out. So I got another quartz conversion. It runs fine on the bench, but in the car, it starts and stops. I'll climb in the car after it's sat for awhile, and the clock will be running but it's four or five hours behind. When it runs, it seems to keep good time, but it doesn't want to stay running.
Okay I'll look for the wires, thank you very much for the info.

Ditch
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Old Aug 3, 2011 | 02:41 PM
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The negative terminal is riveted to the clock housing. The positive has an insulator between it and the housing. It really doesn't matter which wire you hook up first.
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Old Aug 3, 2011 | 02:43 PM
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Here's a photo of the back of the clock - the terminal that's riveted to the case is the ground (-), and the one with the nut and insulator is the hot (+) terminal.
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