8 day clock

[Browncbr1]

I have a cool Wakmann 8 day 7 jewel clock for my yoke.  I wanted to get it working because I just think it is cool.  I opened it up to see if I could get it working and found a couple of issues that require new parts, so it would need to go into a shop to get serviced.  I was about to box it up to ship and realized the dang face has a Cessna logo on it.  Blasphemy!    

Did any of the 50’s or 60’s Mooneys come with a mooney logo 2.25” wind up clock?   

Anyone have one that they would let go?

Edited February 23, 2018 by Browncbr1

[Hank]

I love my yoke clock. Use it every flight as a reminder to switch tanks when the moving white minute hand overlaps the settable, non-moving red hands, and the difference between them when I shut down is the flight time that I log. I don't recall it having a logo of any sort.

Good luck getting yours running . . . . I feel your pain, my freshly exchanged IVSI says "Beechcraft" on the face!  

[RLCarter]

Send it in for repairs and have the face redone, and by the way @Hank my VSI is out of a Beech also

[carusoam]

Mine said wakmann right on it.  If it died, I kNew it was time to go flying... more often...

Somebody has started a thread around here already regarding where to get wakmann service.

one part instrument shop to get a nice logo printed on it.  One part clock shop to get the right bearings and springs...

Best regard,

-a-

[Browncbr1]

Thanks guys!

[HRM]

On 2/22/2018 at 7:14 PM, Browncbr1 said:

I have a cool Wakmann 8 day 7 jewel clock for my yoke.

It has a Breitling mechanism! Mine didn't work very well seven years ago when I bought my Mooney. I hunted for a place to have it serviced, no joy.

One night the hangar fairies pulled it out and I believe they dropped it in a container filled with sewing machine oil and let it soak. It works like new now and will keep ticking faithfully for 8 days. I use it to time my tank switchover and the 6-second prime before start (IO-360).

[N201MKTurbo]

Any good watch repair shop can make it go. Suprisingly, parts are not that hard to come by. 

I geeked out on rebuilding them about 10 years ago. My tools have disapated along with my eyesight. They are such cool mechanisms. 

[Browncbr1]

Yea, they are so cool inside.  Little ruby jewels are used for spindle races.   

I found a place in PA I may send it to get fixed.  

[MBDiagMan]

The mechanical portion could be done best by an old fashioned watchmaker if you can find one.  It very well could have a broken balance staff which would require a watchmaker and a staking set.

[yvesg]

Mine broke recently. As a C.B. club member I would not pay that high for repair. Bought an electric one for $220.

Yves

[RLCarter]

$122 at Spruce

[ragedracer1977]

38 minutes ago, pmccand said:

not TSO'ed

 

And the reviews are AWFUL

[Mooneymite]

FWIW:  A clock Meister at my church told me most clock repairs are cleaning/lubrication.  He also told me that for most clocks, he uses synthetic motor oil (!) because it tends not to gum up after years of use.

[N201MKTurbo]

I have the service manuals for a few of these (A11, A13A1) the lubricants are specifically called out and none of them are synthetic motor oil.

That being said the barrel grease for both of the above clocks crosses to Aeroshell 6

[Mooneymite]

1 minute ago, N201MKTurbo said:

That being said the barrel grease for both of the above clocks crosses to Aeroshell 6

Using a manual?  Isn't that like cheating?  

I don't doubt that the manufacturer knows what's best, but it seems counter-intuitive to use a grease that will thicken when cold in such an application.  The clock that I used synthetic motor oil on is running perfectly....for now.  I'll let you know in 10 years if it was a good move, or not.  

[N201MKTurbo]

5 minutes ago, Mooneymite said:

Using a manual?  Isn't that like cheating?  

I don't doubt that the manufacturer knows what's best, but it seems counter-intuitive to use a grease that will thicken when cold in such an application.  The clock that I used synthetic motor oil on is running perfectly....for now.  I'll let you know in 10 years if it was a good move, or not.  

I have some of the jewel oil specified for these. Approximately 2 drops cost $60....

[bradp]

There are a number of decrepit old clocks available for parts donors on Ebay for </= $50.  May be worth a look, especially if you want a new face.  The working ones go for several hundred.

These old 8-day clocks from the WWII era are apparently collectors items as well - may be why you can still get parts for them.  Pretty awesome.