Passing on my experience.

The clock was repaired in 1983 but always ran way fast after. Decided to adjust a month ago, but evidentially I broke it. :-(

Did some searching and found this place that specilizes in upgrades of old auto clocks.

Instrument Services, Inc

117 Main Street

Roscoe, Il 61073

email instrumentservices@frontier.com

www.ClocksandGauges.com

Cost was $150 plus shipping there of $13 and from there $15. Total of $178

They replace the inner workings with a quartz movement. They also restore the face, hands, and polish the lense face.Takes about two weeks. They call you when they are ready to work on your clock for your credit card , which is charged when they complete the work.

I give them 5 stars, for now I have a time keeping clock in the car.

Edited March 25, 201212 yr by ZCCOR#109

I think most people use Ron at Zclocks http://www.zclocks.com/. His current pricing is about the same, $149, but the return shipping is included. Ron does great work and restores the entire clock, including the case. He is also the only person I know that can repair the rare Z rally clocks.

-Mike

Zclocks only takes one week for refurbishment and has a 6 month guarantee!!!

-Ron

(zclocks)

You can also by them from Motorsport for $89.95 http://www.thezstore.com/page/TZS/CTGY/SIC01E08

I'm wondering about the procedure to install. Mine finally died after 34 years.

I have a spare clock. How do I check to see if it works. ?

I don't want to fry it by wiring it wrong.

I just received my new clock from Ron at Z Clocks. The clock looks outstanding. I will post some pictures of it when I get home. It is worth the price, it looks like I boght a brand new clock from Nissan!

Thanks Ron.

I can vouch for Ron at Zclocks.

He refurbished the Timer clock that you see in my Avatar (which is for sale).

He also has done a standard clock as well. They are both running great!

Dave Ruiz

I fixed mine using some wd40, and winding the spring back, and then when it worked I set the timing. It's not that difficult, but I think if parts are broken you need a specialist to do the work..

I had my clock done by Ron at Zclocks about two and a half years ago and it looks like new and is still running strong! I highly recommend!

For the Do-It- Yourself owners check out S30 posts on this topic contributed by CZCC member, EScanlon.

For the Do-It- Yourself owners check out S30 posts on this topic contributed by CZCC member, EScanlon.

Enrique was trying to track down the reason for a little drift in timekeeping he had between his power supply and his car. He asked me about it, but I didn't have the opportunity to delve into the issue. My guess is that the non-quartz clock is just more sensitive to voltage. Doing a refurbishment like ZClocks goes to a quartz movement that is probably less sensitive to the voltage.

My guess is that the non-quartz clock is just more sensitive to voltage.

Shouldn't be... The non-quartz control board is shunt zener regulated. Unless you're trying to run it off a pair of D cells, it should be just fine. Even a 9V battery should power it just fine for quite a long time.

Of course the quartz movement could (should?) be more accurate, but not because of the input voltage variation.