Dham Posted November 9, 2016 Report Share Posted November 9, 2016 I took my m20f in for new transponder and panel upgrade. And was told panel up grade was not possible without a lot of modification because of the panel mounted on rubber grommets. It was suggested to replace bad grommets that had allowed panel to drop about an inch (that I hadn't noticed) but if not replaced could drop further an cause problem. Any advice or suggestions would be appreciated. Quote Link to comment Share on other sites More sharing options...
carusoam Posted November 9, 2016 Report Share Posted November 9, 2016 Dham, Try and do some homework... Find the rubber panel mounts holding your panel up. They are hiding behind the acorn nuts on the front side of the panel. use your fingers to push up on the instrument panel if it moves a lot, the rubber mounts have become loose or worn. Another way to know the panel is drooping... the panel has a tendency to turn off the landing light. The clearance between the panel and the switch (in the up position) is too small. Often, the landing light CB switch is worn out and wants to turn itself off. Given a slight bump from the drooping panel is All it takes. The good news is new rubber panel shock mounts are readily available in standard sizes complete with new acorn nuts. They cost a few bucks at aircraft spruce. The acorns are mostly decoration. There are other nuts behind the plastic panel that are for tightness , I believe. Once you complete this homework exercise, check in with your mechanic on acquiring the proper hardware and getting it swapped in and logged properly... or find a different mechanic something about the advice you are explaining doesn't sound the best for you. The mechanic sounds like he may be testing your knowledge of your ship. You came to the right place to find out more about what you have... From my PP M20C experience. I am not a mechanic... Best regards, -a- Quote Link to comment Share on other sites More sharing options...
Brandontwalker Posted November 9, 2016 Report Share Posted November 9, 2016 I took my m20f in for new transponder and panel upgrade. And was told panel up grade was not possible without a lot of modification because of the panel mounted on rubber grommets. It was suggested to replace bad grommets that had allowed panel to drop about an inch (that I hadn't noticed) but if not replaced could drop further an cause problem. Any advice or suggestions would be appreciated. https://www.mcmaster.com/#9376K15Sent from my iPhone using Tapatalk 1 Quote Link to comment Share on other sites More sharing options...
Marauder Posted November 9, 2016 Report Share Posted November 9, 2016 I took my m20f in for new transponder and panel upgrade. And was told panel up grade was not possible without a lot of modification because of the panel mounted on rubber grommets. It was suggested to replace bad grommets that had allowed panel to drop about an inch (that I hadn't noticed) but if not replaced could drop further an cause problem. Any advice or suggestions would be appreciated. Something doesn't sound right. Those panel mounts, even if broken should not allow the panel to drop an inch. Ask them for pictures of the problem and post them here.I suspect they are either talking about something else or they are up to something. Sent from my iPad using Tapatalk Quote Link to comment Share on other sites More sharing options...
PTK Posted November 9, 2016 Report Share Posted November 9, 2016 11 hours ago, Dham said: I took my m20f in for new transponder and panel upgrade. And was told panel up grade was not possible without a lot of modification because of the panel mounted on rubber grommets. It was suggested to replace bad grommets that had allowed panel to drop about an inch (that I hadn't noticed) but if not replaced could drop further an cause problem. Any advice or suggestions would be appreciated. It is possible if those mounts are old for panel to sag. An inch does sound extreme but conceivable. They can be easily replaced without taking the whole panel apart. I replaced all of mine a couple years ago. They were sagging slightly about an eighth of an inch or so. It took me a couple of hours to do and I can give you some tips. PM me if interested. Quote Link to comment Share on other sites More sharing options...
Dham Posted November 9, 2016 Author Report Share Posted November 9, 2016 Thanks for your response. They have put it back together. I will have my A&P replace the mounts. Is it possible and feasible to replace the panels. I wanted to clean up the panel i.e. Get rid of plastic Quote Link to comment Share on other sites More sharing options...
1964-M20E Posted November 9, 2016 Report Share Posted November 9, 2016 The plastic is purely cosmetic and can be removed and not replaced as long as you put back any placards. Many have replaced the plastic and the sub panel with new aluminum painted panels. Quote Link to comment Share on other sites More sharing options...
Dham Posted November 9, 2016 Author Report Share Posted November 9, 2016 Wow, yes I have had the landinging light switch off at times. I thought it was weird what little space the switches had. I love my plane but I have learned/learning a lot the hard way. Mooney space is an awesome resource. Thanks to all who take the time to help new mooney guys! 1 Quote Link to comment Share on other sites More sharing options...
Bob_Belville Posted November 9, 2016 Report Share Posted November 9, 2016 My panel has been changed out twice, the first time with a STCd panel by SWTA, the last time by the avionics shop who installed my present avionics. The replacement panels eliminated the rubber mounts. I'm told modern avionics and instruments can withstand and in some cases benefit from mild vibration. 1 Quote Link to comment Share on other sites More sharing options...
Dham Posted November 9, 2016 Author Report Share Posted November 9, 2016 Bob, your panel is going to be envious. If only I could talk my kids out of going to college! Quote Link to comment Share on other sites More sharing options...
Bob_Belville Posted November 9, 2016 Report Share Posted November 9, 2016 12 minutes ago, Dham said: Bob, your panel is going to be envious. If only I could talk my kids out of going to college! That picture is 4 years old. I may have posted a pic of the finished set up previously but just in case... Quote Link to comment Share on other sites More sharing options...
Dham Posted November 9, 2016 Author Report Share Posted November 9, 2016 Very nice! Quote Link to comment Share on other sites More sharing options...
Aerodon Posted November 11, 2016 Report Share Posted November 11, 2016 Bob, very nice - especially taking the extra effort to flush mount the aspen and JPI engine display. Don 1 Quote Link to comment Share on other sites More sharing options...
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