gwav8or Posted December 23, 2023 Report Share Posted December 23, 2023 Hey all, avionics shop just told me I need to repair or replace the airspeed indicator. Where would you send it for overhaul? If you were to replace one, where would you get it? Can you even get new airspeed indicators for a ‘67 F? Sent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
cliffy Posted December 23, 2023 Report Share Posted December 23, 2023 Lots of legal alternatives for replacement Your A&P should know where and which to use. Look at A/C Spruce for ideas and talk to the A&P You can also have your instrument overhauled by any number of instrument overhaul shops. Again talk to your A&P You'll need a Pitot/Static check after the change anyway. 1 Quote Link to comment Share on other sites More sharing options...
hammdo Posted December 23, 2023 Report Share Posted December 23, 2023 Wow, that sucks Grant. Recent thread with options: Rudys may be your best option for OH (just NE of Ft. Smith): @gwav8or -Don 1 Quote Link to comment Share on other sites More sharing options...
gwav8or Posted December 23, 2023 Author Report Share Posted December 23, 2023 Wow, that sucks Grant. Recent thread with options: Rudys may be your best option for OH (just NE of Ft. Smith): [mention=18901]gwav8or[/mention] -DonThanks Don! Rudy’s may be my best bet as they are close. Sent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
hammdo Posted December 23, 2023 Report Share Posted December 23, 2023 Short flight too if necessary ;o) -Don 1 Quote Link to comment Share on other sites More sharing options...
gwav8or Posted December 23, 2023 Author Report Share Posted December 23, 2023 Lots of legal alternatives for replacement Your A&P should know where and which to use. Look at A/C Spruce for ideas and talk to the A&P You can also have your instrument overhauled by any number of instrument overhaul shops. Again talk to your A&P You'll need a Pitot/Static check after the change anyway. Thanks cliffy good info!Sent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
gwav8or Posted December 23, 2023 Author Report Share Posted December 23, 2023 Short flight too of necessary ;o) -DonClose to my folks too so, two birds one stone! LolSent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
N201MKTurbo Posted December 23, 2023 Report Share Posted December 23, 2023 There used to be lots of instrument shops. We have one here still. They can pretty much turn any airspeed into a Mooney airspeed. Well they used to anyway. They just need to get one that has the correct range and then silk screen the dial. Nowadays, I think it isn’t quite so easy. But they can repair yours and make it just like new. What’s wrong with it? Is it leaking? Quote Link to comment Share on other sites More sharing options...
gwav8or Posted December 23, 2023 Author Report Share Posted December 23, 2023 There used to be lots of instrument shops. We have one here still. They can pretty much turn any airspeed into a Mooney airspeed. Well they used to anyway. They just need to get one that has the correct range and then silk screen the dial. Nowadays, I think it isn’t quite so easy. But they can repair yours and make it just like new. What’s wrong with it? Is it leaking?Yep. Leaking. Sent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
N201MKTurbo Posted December 23, 2023 Report Share Posted December 23, 2023 Just now, gwav8or said: Yep. Leaking. Sent from my iPhone using Tapatalk It’s a 15 minute repair if you can get a new gasket. 1 Quote Link to comment Share on other sites More sharing options...
Jrags Posted December 23, 2023 Report Share Posted December 23, 2023 I just sent my DG to Berkshire Instrument. I shipped it overnight on Thursday and received it back on Tuesday. He will do the airspeed overhaul for $230. Just take it out ship it and then put it back in. Its the least expensive route to take. 1 Quote Link to comment Share on other sites More sharing options...
gwav8or Posted December 23, 2023 Author Report Share Posted December 23, 2023 It’s a 15 minute repair if you can get a new gasket.Where is the gasket located? Where the pitot connects?Sent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
Shadrach Posted December 23, 2023 Report Share Posted December 23, 2023 Porter-Strait is in Tulsa https://www.porterstrait.com as an added bonus they also work on Brittain instruments 1 Quote Link to comment Share on other sites More sharing options...
N201MKTurbo Posted December 23, 2023 Report Share Posted December 23, 2023 1 hour ago, gwav8or said: Where is the gasket located? Where the pitot connects? Sent from my iPhone using Tapatalk The gasket is on the glass. There are 8 little screws behind the face. If you take them out from the back with the instrument sitting on its face, your front bezel will come off. If you have a TAS knob, you will have to release the knob. I think there is a screw you remove to release the knob gear. You will have to look it over to figure that out. Once the bezel is off there will be a paper gasket between the glass and the bezel. The glass can be pulled off the front of the instrument, it may be stuck on the rubber gasket. That is the gasket that is leaking. If you want to do an illegal repair, remove the gasket and clean it with IPA, also clean the gasket surface on the case. Don’t touch the face or needle, you will leave fingerprints on it. Don’t try to clean the dial or hand. Any attempt will probably damage the paint. Clean the glass with soap and water, then IPA. Don’t touch the glass except at the edges or you will leave finger prints on it. Now comes the bad part… coat the mating surfaces of the gasket with the thinnest continuous layer of black RTV you can manage. Set the glass in the bezel, then set the gasket into the bezel on top of the glass. Be super careful doing this. If the gasket touches the glass anywhere other than where it is supposed to, it will leave an RTV smear and you will have to start over cleaning the glass. Set the housing onto the bezel and replace the screws. And admire how good your instrument looks. DISCLAIMER! The above procedure is specifically prohibited by the regulations. 3 Quote Link to comment Share on other sites More sharing options...
N201MKTurbo Posted December 23, 2023 Report Share Posted December 23, 2023 You can check if the leak is on the glass (it always is). Hook its static and pitot ports to the pitot static test box. Raise it a few thousand feet and check the leak rate by looking at the VSI on the test box. If it is leaking, push on the glass. If the leak stops, the gasket is leaking. 1 Quote Link to comment Share on other sites More sharing options...
Ragsf15e Posted December 24, 2023 Report Share Posted December 24, 2023 5 hours ago, N201MKTurbo said: The gasket is on the glass. There are 8 little screws behind the face. If you take them out from the back with the instrument sitting on its face, your front bezel will come off. If you have a TAS knob, you will have to release the knob. I think there is a screw you remove to release the knob gear. You will have to look it over to figure that out. Once the bezel is off there will be a paper gasket between the glass and the bezel. The glass can be pulled off the front of the instrument, it may be stuck on the rubber gasket. That is the gasket that is leaking. If you want to do an illegal repair, remove the gasket and clean it with IPA, also clean the gasket surface on the case. Don’t touch the face or needle, you will leave fingerprints on it. Don’t try to clean the dial or hand. Any attempt will probably damage the paint. Clean the glass with soap and water, then IPA. Don’t touch the glass except at the edges or you will leave finger prints on it. Now comes the bad part… coat the mating surfaces of the gasket with the thinnest continuous layer of black RTV you can manage. Set the glass in the bezel, then set the gasket into the bezel on top of the glass. Be super careful doing this. If the gasket touches the glass anywhere other than where it is supposed to, it will leave an RTV smear and you will have to start over cleaning the glass. Set the housing onto the bezel and replace the screws. And admire how good your instrument looks. DISCLAIMER! The above procedure is specifically prohibited by the regulations. How do you know so much about those fingerprints?? 2 Quote Link to comment Share on other sites More sharing options...
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