ryoder Posted September 13, 2014 Report Share Posted September 13, 2014 I have the clock pictured here in my M20C http://www.coreutilities.com/mooney/graphics/FittedPanel.jpg No that's not my panel. What options do I have to replace it? Is it just a standard 2 1/4 gauge holder? What is the voltage running to it? 12 or 5? Thinking about this one, any reviews? http://www.aircraftspruce.com/catalog/inpages/ei-chronometers.php Quote Link to comment Share on other sites More sharing options...
carusoam Posted September 13, 2014 Report Share Posted September 13, 2014 If you have the original, it is a wind-up, 8 day clock. Isn't it? Consider a panel mounted clock with additional skills like digital approach timer and OAT. Good time to use the search function.... Report back which one you prefer. Best regards, -a- Quote Link to comment Share on other sites More sharing options...
Piloto Posted September 13, 2014 Report Share Posted September 13, 2014 Before buying one of these digital clocks get the dimensions first to insure it will fit in the yoke cavity. The hole diameter maybe the same but not the depth or the mounting tabs. José 1 Quote Link to comment Share on other sites More sharing options...
Hank Posted September 13, 2014 Report Share Posted September 13, 2014 That looks like my clock. Wind it up and see if it runs! Pull out the winding stem and set the time. Both of these are on my Before Takeoff checklist. I set the red hands with the other knob, and use it to time fuel tank changes every hour and flight time for my logbook. There is a wire up the yoke, as I have both the red post light on the clock, and a push-to-talk button on the yoke. The clock is mechanical, right down to the sweep second hand (no quartz one-second jumps). Quote Link to comment Share on other sites More sharing options...
ryoder Posted September 13, 2014 Author Report Share Posted September 13, 2014 That clock won't wind up. The knob is seized. I'd like to replace it with a new one or something nicer without enlisting the help of an avionics shop. Quote Link to comment Share on other sites More sharing options...
Hank Posted September 13, 2014 Report Share Posted September 13, 2014 Try Wentworth or your favorite aircraft salvage yard. Or call around and find a watch repairman and take it to him for cleaning/adjustment/restoration. Quote Link to comment Share on other sites More sharing options...
ArtVandelay Posted September 13, 2014 Report Share Posted September 13, 2014 Consider a panel mounted clock with additional skills like digital approach timer and OAT. If you do that, I would replace the old yokes as well. Quote Link to comment Share on other sites More sharing options...
Guest Posted September 14, 2014 Report Share Posted September 14, 2014 It's likely a Wakmann 8 day clock. Take it to a jeweller who does clock or watch repairs to get it fixed. Once running again they can be calibrated for accuracy through an access cover on the back. Clarence Quote Link to comment Share on other sites More sharing options...
carusoam Posted September 14, 2014 Report Share Posted September 14, 2014 It is one of the sweetest tools in an all manual Mooney. If you get to fly often enough... It never loses time! Best regards, -a- Quote Link to comment Share on other sites More sharing options...
Mooneydriver87 Posted March 13, 2015 Report Share Posted March 13, 2015 I have an M20F with the original wind up clock in the yoke. I have no idea where to find the cover/frame that goes around the clock to complete the yoke. Quote Link to comment Share on other sites More sharing options...
N201MKTurbo Posted March 13, 2015 Report Share Posted March 13, 2015 I have an M20F with the original wind up clock in the yoke. I have no idea where to find the cover/frame that goes around the clock to complete the yoke. Get a piece of sheet metal and cut it out. If you want the bevels make a die out of wood with a router. 1 Quote Link to comment Share on other sites More sharing options...
redcatcher27 Posted February 12, 2019 Report Share Posted February 12, 2019 I had the original (but broken) 8 day clock out of my 1968 M20F refurbished and repaired by the great folks at Waltham Aircraft Clock Corp. just outside of Ozark Alabama. I could not be happier with the service, turn around time, or price. They returned my clock and it looks like its brand new! https://www.walthamclocks.com/ Quote Link to comment Share on other sites More sharing options...
0TreeLemur Posted February 12, 2019 Report Share Posted February 12, 2019 5 hours ago, redcatcher27 said: I had the original (but broken) 8 day clock out of my 1968 M20F refurbished and repaired by the great folks at Waltham Aircraft Clock Corp. just outside of Ozark Alabama. I could not be happier with the service, turn around time, or price. They returned my clock and it looks like its brand new! https://www.walthamclocks.com/ Nice www site. Very interesting that such a repair is still available. You just replied to a four year-old thread. You have resurrected a zombie! 1 Quote Link to comment Share on other sites More sharing options...
Bob R Posted October 14, 2019 Report Share Posted October 14, 2019 Hey Guys, I am looking for two either windup or electric clocks for the center of my yoke(s). I happen to have an extra pilot side yoke and since my copilot side yoke has a small hairline crack, thought I would put a pilot side one there with alterations for a PTT and such. Know where I can get a couple cheap? Bob Quote Link to comment Share on other sites More sharing options...
canamex Posted January 16, 2022 Report Share Posted January 16, 2022 @Bob R did you ever find those clocks? I'm looking for a classic wind-up one as well Quote Link to comment Share on other sites More sharing options...
Ragsf15e Posted January 16, 2022 Report Share Posted January 16, 2022 39 minutes ago, canamex said: @Bob R did you ever find those clocks? I'm looking for a classic wind-up one as well I would check with waltham clocks, but don’t expect cheap. I had mine fixed there and they were good. Quote Link to comment Share on other sites More sharing options...
Bob R Posted January 17, 2022 Report Share Posted January 17, 2022 21 hours ago, Ragsf15e said: I would check with waltham clocks, but don’t expect cheap. I had mine fixed there and they were good. Not an issue now. Putting in J control wheels and new shafts from Mooney. Thx Quote Link to comment Share on other sites More sharing options...
Browncbr1 Posted January 20, 2022 Report Share Posted January 20, 2022 On 1/16/2022 at 5:44 PM, canamex said: @Bob R did you ever find those clocks? I'm looking for a classic wind-up one as well I have an inop waakmann wind up on the shelf if needed . It’s the fancy one with ruby bearings inside. It would require sending to Waltham. The face and bezel are nice and I think it says mooney, I’d have to go check in interested. Quote Link to comment Share on other sites More sharing options...
canamex Posted January 25, 2022 Report Share Posted January 25, 2022 @Browncbr1 will send you a PM, thx! Quote Link to comment Share on other sites More sharing options...
Scott6113 Posted March 6 Report Share Posted March 6 In case you want to refurbish what you have, there is still a repair shop that takes them, and it's mentioned here, but just to update that information. It is www.walthamclocks.com. They open at 10. When you call 334-774-3584, use extension 100 and even though it says voicemail, I have gotten a live person each time. Not cheap. My rebuild is $350. I last had a rebuild 20+ years ago for $150 so that's about right. They're not to be confused with the clock builder Waltham Clocks, which was in Waltham MA and went out years ago. The repair shop is in Alabama and still in business at this writing, March 2024. Mine is a swiss one, probably Breitling, though there are ones made by Wakmann and some labelled Pioneer. Don't know if they repair all types but worth a try. 1 Quote Link to comment Share on other sites More sharing options...
Hank Posted March 7 Report Share Posted March 7 12 hours ago, Scott6113 said: . . . there is still a repair shop that takes them, and it's mentioned here, but just to update that information. It is www.walthamclocks.com. They open at 10. When you call 334-774-3584 . . . The repair shop is in Alabama and still in business at this writing, March 2024. Hey, he's less than a Mooney hour from me! Dothan is a nice field, big, open and towered for those who "don't go to uncontrolled fields." But my yoke clock ticks along nicely. I'll have to see what else he works on. Quote Link to comment Share on other sites More sharing options...
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