Seth Posted July 18, 2011 Report Share Posted July 18, 2011 As many of you know, I'm selling my 1967 M20F. I'm cleaning up the aircraft as much as I can before delivery to the new buyer - the little things. I'm having the glareshild recoverd/reconditioned, washing off the gritt, vacuming out the inside, repolishing the spinner, etc . . . However, I do not know how to clean off the face of the KNS-80 RNAV or the ADF. They are King units with the redish/orangish display. From years in the sun, or maybe inappropriate earlier cleaning, the face is scuffed or maybe peeling? Internally? I don't know. It's hard to read in the sunlight, but I've made due. I use the KNS-80 for DME and speed readings, as well as filing direct /R. I use the ADF for occasional fun, weather when it is all they have, and twice NDB approaches - once in training, and once this last weekend when arriving at KBBB in Minnesota for the prebuy inspection and test flight of another Mooney - details to come on that later. So, if you have experience with cleaning this sort of display, what is your experience, and does it work? I would obviously start on an area of the ADF that would really show if it messes it up more. I'm thinking maybe some sort of polish, or the fluid used to clean the yellow off headlight lenses on worn cars. When I purchased the plane, the shop said there wasn't too much to be done but send in the unit to an avionics shop. I'll call my MSC in the morning as well as an avionics shop for advice, but I figured I'd first act the collective wisdom of MooneySpace.com. Take care, and thank you in advance. -Seth Quote Link to comment Share on other sites More sharing options...
Seth Posted July 20, 2011 Author Report Share Posted July 20, 2011 Any suggestions? I plan to put in a call to an avionics shop and do some research. Mainly I just want the KNS 80 to be easier to read in daylight. I'm wondering if the gas leaked out over time - however, it's bright enough, just the screen seems scratched up. I don't plan on spending anything on the face of the king ADF. Again, suggestions welcome - I won't post again if no one responds Quote Link to comment Share on other sites More sharing options...
OR75 Posted July 20, 2011 Report Share Posted July 20, 2011 http://www.chiefaircraft.com/airsec/Avionics/MfgAI/BendixKing4.html the bezels and lens are sold new ... the lens is what you want. Expensive for a small tiny piece of plastic Quote Link to comment Share on other sites More sharing options...
flyboy0681 Posted July 20, 2011 Report Share Posted July 20, 2011 Quote: OR75 http://www.chiefaircraft.com/airsec/Avionics/MfgAI/BendixKing4.html the bezels and lens are sold new ... the lens is what you want. Expensive for a small tiny piece of plastic Quote Link to comment Share on other sites More sharing options...
jlunseth Posted July 20, 2011 Report Share Posted July 20, 2011 The "lens" is costly enough that it is cheaper and more reliable to buy a reconditioned KNS 80 Quote Link to comment Share on other sites More sharing options...
Immelman Posted July 20, 2011 Report Share Posted July 20, 2011 How about that micro-mesh stuff used on plexiglass windows? Maybe better to try it out on somehting you can sacrifice, first. Quote Link to comment Share on other sites More sharing options...
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