1972 911 - Kienzle Clock Question

[McOtto]

The Kienzle clock in my ‘72 works great. However, after resetting the time by pushing in the knob, turning and releasing; the knob springs out some, but not apparently all of the way. As a result, the clock ultimately stops. My guess is the knob is staying in a partially engaged position, thus adding drag to the clock works. After jiggling, careful pulling and patience; the knob pops out and the clock auto-winds and runs fine. However, all of that fiddling with the knob to get it to pop out typically results in the minute hand never landing on the correct time.

My guess is the years and crud are bogging down the knob release mechanism, not allowing it to freely disengage without some some gentle persuasion.

I know there are a number of reputable gauge/clock shops that can look at it. Before I pursue those options, I am hoping someone might be aware of an easy fix???

Thank you!

[Scott A]

The small clearance for your knob to turn gets a little rusty in there, and like you said, clogs the smooth operation.
I would but a small dab of oil on the knob. And work it carefully back and forth and in and out. With that, It should sand itself to better movement.

Oils & chemicals I might try.
WD-40
PB Blaster
Motor oil.

[McOtto]

Thank you. Worth a try. I will be careful to apply a very small amount of lubricant, letting it gravity flow down the knob stem. Don’t want to stain the clock face or get oil on the inside of the lens, resulting in the need to dismantle and clean the clock.

[Scott A]

Since the clock is so easy to take out, try doing all the work with the face toward the ground. So gravity takes most of the oil out of the clock not in.

[McOtto]

Since the clock is so easy to take out, try doing all the work with the face toward the ground. So gravity takes most of the oil out of the clock not in.

Thanks again, Scott A. Used your proposed technic and it worked great. Really appreciate the help!

[Haasman]

I had mine repaired at Palo Alto speedo service http://www.paspeedo.com/