Clock motor

[Aussie Zed]

Ron,

thanks for your reply, unfortunately my new capacitors have not fixed my clock. I cannot think of anything except for the coil (which you have suggested is easily burnt out) now that could be preventing it from working, which is frustrating!

I have heard nothing but praise for your attention to detail and expertise on the z clocks, but with you being in the US and me being all the way down under, i have decided that i am just going to use a 12V quarts mechanism from another car and use that in conjunction with the current face and casing. I think that this should be the best way to do things and i cannot forsee any major difficulties apart from mounting the new innards.

Thanks again,

Jon

[zclocks]

jon,

Since you're gone this far don't give up on your mechanical clock. You should have better luck with fixing the OEM clock rather than trying to integrate your face plate on your current clock with a quartz clock.The face plates are not interchangable and need modification or things don't line up. You'll see what I'm talking about when you get there (I have a fix). Also, if you find a quartz clock I would really really recommend the clock mechanism be refurbished.

I use the same quartz unit on all my refurbishments and I rebuild every one, working or not. These clocks are at least 27 years old and they do have moving parts which wear out. It saves a lot of frustration after installing a clock and finding out it works for a short time and needs to be removed, AGAIN.

Try this on the mechanical clock. The capacitors you replaced are polar(electrolitic). Did you observe the correct orientation? Are they the exact uf values? This is important. Second if you did install the caps correctly try this(to determine if the coil is bad). Apply 12 volts to the clock and observe what happens to the flywheel on the clock. You will have to look closely and may have to disconnect the + 12 volts to the clock and re-apply. If the flywheel moves at all then the coil is not bad. If all else fails I do have working ckt boards for a small fee.

Oh by the way nice picture of your 76. Love the red.

Ron

ZC

[Aussie Zed]

I just thought that i'd report back to say that i've finally won the battle (well almost)! I've fixed my clock by sacrificing a clock from a Datsun 120Y (don't know what year). Evidently this had almost exactly the same internals as my clock but had a seconds hand aswell. I just pinched the circuit board and screwed it into mine - too easy!

Now if i can only find the bracket that holds the clock in - i been so slow getting around to fixing my clock that i've misplaced it...

Thanks to everyone who has helped with advice,

Jon

[zclocks]

Jon,

Good going. Make sure you test your clock for several days by watching the time and making the speed adjustment if necessary. It's almost impossible to adjust the time(fast ---Slow) if the clock is in the dash.

If you can't find you bracket let me know as I think I have a 100 or so laying around.

Ron

zclocks.com

[dogma420]

Ron,

Are your clocks for $90 adjusted for accurate time before you send or this that default due to quartz movement?

Thanks

[zclocks]

Dave,

The quartz clock is crystal oscillator controlled. I check the accuracy against the standard I use, but the real accuracy is how well you can set the clock time.

Using a time standard and different hands (for accurate measure) I have determined the quartz movement to be within one second per month(again this is my standard). There is a provision to adjust but if the solid state components are within tolerance there is no need to adjust. Also this is the standard quartz clock mechanism that Datsun used in their quartz clocks which was supplied by their subcontractor Kanto Seiki.

The answer to your question is no I do not adjust the accuracy before I ship but I do check the accuracy. As long as the clock supply voltage is 10 vdc

the clock should perform as described.

The quartz clock accuracy is as designed by Kanto Seiki, no jewels and unadjusted.Oh yea I forgot, all my clocks are LAB TESTED. Hope this helps.....Ron

[zclocks]

Dave,

Not sure why you asked the question about accurate time for the quartz clock.

In the previous post Jon has a mechanical clock and the time/accuracy there is completely different than the quartz. The stock mechanical clock has accuracy problems and and the best you can do is minimize the problem.

The owners manual for the stock 240Z clock suggests you "set the time daily" for accuracy? They knew there was problems.

Ron