kpaul Posted August 3, 2017 Report Share Posted August 3, 2017 The Bezel around the air vent on my 1975 M20F is beyond repair and the plastic is so brittle it is crumbling. Looking for a replacement is anyone has one. I only need the plastic portion, but will take the entire assembly. Part number - 340282-1 Quote Link to comment Share on other sites More sharing options...
Marauder Posted August 3, 2017 Report Share Posted August 3, 2017 1 hour ago, kpaul said: The Bezel around the air vent on my 1975 M20F is beyond repair and the plastic is so brittle it is crumbling. Looking for a replacement is anyone has one. I only need the plastic portion, but will take the entire assembly. Part number - 340282-1 Got another solution for you. Mine looked just like yours. A Mooney owner here build a wedge adapter and I installed one of these: If you are interested, I'll see if he would be willing to build the wedge for you. It is a solid piece of plastic type material that points the eyeball socket up a bit. Will take a picture of mine later today. 1 Quote Link to comment Share on other sites More sharing options...
Marauder Posted August 3, 2017 Report Share Posted August 3, 2017 http://www.aircraftspruce.com/catalog/appages/whisperflovent.php?clickkey=25430 Quote Link to comment Share on other sites More sharing options...
kpaul Posted August 3, 2017 Author Report Share Posted August 3, 2017 2 hours ago, Marauder said: Got another solution for you. Mine looked just like yours. A Mooney owner here build a wedge adapter and I installed one of these: If you are interested, I'll see if he would be willing to build the wedge for you. It is a solid piece of plastic type material that points the eyeball socket up a bit. Will take a picture of mine later today. Marauder, That would be great! Upgrading would be even better than replacing. Quote Link to comment Share on other sites More sharing options...
jetdriven Posted August 3, 2017 Report Share Posted August 3, 2017 You'd kinda need two of those. But that's a great idea. Quote Link to comment Share on other sites More sharing options...
Marauder Posted August 3, 2017 Report Share Posted August 3, 2017 Here is what it looks like installed. The guy who made the wedge was experimenting with different sizes. It is close to the right angle but he can make it with more or less angle. Sent from my iPhone using Tapatalk Pro Quote Link to comment Share on other sites More sharing options...
XXX Posted August 4, 2017 Report Share Posted August 4, 2017 7 hours ago, Marauder said: Got another solution for you. Mine looked just like yours. A Mooney owner here build a wedge adapter and I installed one of these: If you are interested, I'll see if he would be willing to build the wedge for you. It is a solid piece of plastic type material that points the eyeball socket up a bit. Will take a picture of mine later today. I'm interested also. Might be more worthwhile for him to do two. Quote Link to comment Share on other sites More sharing options...
Marauder Posted August 4, 2017 Report Share Posted August 4, 2017 I will send the guy an email and see if he would be willing to make a few. Sent from my iPad using Tapatalk Pro Quote Link to comment Share on other sites More sharing options...
RRBoyd Posted August 4, 2017 Report Share Posted August 4, 2017 The Bezel around the air vent on my 1975 M20F is beyond repair and the plastic is so brittle it is crumbling. Looking for a replacement is anyone has one. I only need the plastic portion, but will take the entire assembly. Part number - 340282-1 I have the same need for the air vent on my 1977 M20J. Would welcome any leads.Sent from my iPad using Tapatalk Quote Link to comment Share on other sites More sharing options...
TTaylor Posted August 7, 2017 Report Share Posted August 7, 2017 Ditto, mine has been waiting for the shop elves to repair it for about two years. They have gotten slow lately. Quote Link to comment Share on other sites More sharing options...
Marauder Posted August 7, 2017 Report Share Posted August 7, 2017 I received word back from the guy who made the wedge for me that he isn't interested in making more. He does have one wedge left and offered it to me to send to someone who could use it as a template for making more.Any of you have skills and tools to produce this for others? He told me the wedge was made from polyurethane. Sent from my iPad using Tapatalk Pro Quote Link to comment Share on other sites More sharing options...
carusoam Posted August 7, 2017 Report Share Posted August 7, 2017 A light weight, rigid, poly foam could be nice... PU is usually a tough rubber... Selecting a polymer that works shouldn't be too tough. Even a solid, non foam material isn't going to weigh a lot. Easy to machine, light weight and durable... is this something that would interest a @Yetti? are there existing wedge shapes that just need holes cut in them? Thinking out loud, -a- Quote Link to comment Share on other sites More sharing options...
TTaylor Posted August 7, 2017 Report Share Posted August 7, 2017 Chris, I would be interested. I have a machine shop and 3d printers. It might be faster to measure and convert to .stl file and print. I will need to do some burn tests on different materials. Tim 1 Quote Link to comment Share on other sites More sharing options...
jetdriven Posted August 7, 2017 Report Share Posted August 7, 2017 That thing looks like it can be repaired with some fiberglass and Epoxy, but actually it's really asking to get molded and then duplicated in carbon fiber Quote Link to comment Share on other sites More sharing options...
carusoam Posted August 7, 2017 Report Share Posted August 7, 2017 TT, You might be able to find resins where they have had flame retardants added to them. FRs cost money, it isn't natural for a polymer to have them... if they have been added, it will be mentioned as part of the highlights of the resin printed on the package(?) Flame retardants have a small effect on physical properties, meltpoints, and viscosity... It would make a great project for experimenting with. Not the worst spot for a flammable plastic part.... Best regards, -a- Quote Link to comment Share on other sites More sharing options...
jetdriven Posted August 7, 2017 Report Share Posted August 7, 2017 (edited) amtimony trioxide powder is cheap, for a flame retardant but ABS plastic is flammable as is the cardboard the sidewall carpet is glued to Edited August 7, 2017 by jetdriven Quote Link to comment Share on other sites More sharing options...
TTaylor Posted August 7, 2017 Report Share Posted August 7, 2017 My shop elves started doing the fiberglass - epoxy repair, but I like the simplicity of a wedge and an off the shelf eye vent. I have some Taulman Black "Bridge" nylon on the shelf that would make a nice wedge. The Tg is high enough for a vent and from what I can tell it has very low flammability potential compared to ABS. Quote Link to comment Share on other sites More sharing options...
carusoam Posted August 7, 2017 Report Share Posted August 7, 2017 Glass transition temperature... very nice! Similar to melt point for things that don't really technically melt... Plastics processing uses Tg as a reference... then adds temperature in chunks of 10°C... viscosity has a tendency to get cut in half for each 10°C. Tg +50°C probably is a nice starting point for trying to use it in a printer? The challenge with nylon, it has a tendency to have its viscosity run like water and drip when it gets really hot... If it lights on fire, it will spread like oil... Easy enough to test. Take outside hit it with a lighter. Observe what it happens, safely... Making the part with a 3D printer would be really cool, the amount of excess material can be minimized. The total weight will be tiny. PP thoughts only..? Best regards, -a- Quote Link to comment Share on other sites More sharing options...
Yetti Posted August 7, 2017 Report Share Posted August 7, 2017 I still owe some people seat wheels.... But if I were doing, a duran cutting board from wally world a belt sander and sand paper, file and some black paint would work for your average shop home hangar elf. https://www.walmart.com/ip/Mainstays-3-Piece-Basic-Poly-White-Cutting-Boards/43832326 1 Quote Link to comment Share on other sites More sharing options...
Marauder Posted August 7, 2017 Report Share Posted August 7, 2017 My shop elves started doing the fiberglass - epoxy repair, but I like the simplicity of a wedge and an off the shelf eye vent. I have some Taulman Black "Bridge" nylon on the shelf that would make a nice wedge. The Tg is high enough for a vent and from what I can tell it has very low flammability potential compared to ABS. I will get the prototype wedge he has and mail it to you. Could you PM me your address? You may want to experiment with angles (thickness of the wedge) to get the right angle for best air distribution. They vent we had from the factory was very simple and allowed air to be distributed up or down. The eyeball makes it a little more challenging since it is capable of going right and left. Let me know. Sent from my iPad using Tapatalk Pro Quote Link to comment Share on other sites More sharing options...
MooneyPoor Posted March 2, 2019 Report Share Posted March 2, 2019 Anyone with more of those wedges? Quote Link to comment Share on other sites More sharing options...
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