Open4cycle

David, It is indeed a cast block from 1968 M20F. Either the smelting pot wasn't held to a high standard for these ingots or the alloys changed from early to later production. Oh I tested the Up Lock Block because I don't need to Jack the plane up till next month. Scott

I'm sorry you didn't receive them. I've never had a problem with the USPS before. I refunded you $20.00.

What are you doing with those inserts? I have mailed you 2 sets 2 different times. I only charged you for 12" material, which I think was $18, the labor and postage was free. I still have material if you want me to make more?

I'm not competing with David for work. When I contacted David he told me that he had already submitted his sample for analysis and I could post something here offering my services. I have made unobtainable parts for both this Mooney I currently own and a 1947 Navion. I just thought I could offer a good alternative with my abilities and the equipment I own. Not trying to step on any toes. That being said I analyzed my Up-lock block today it showed to be 6061 alloy. The sideways picture shows the percentages of each element. 6061 is about half the price of the 7075 or 2024, however per part would be about $10.00 difference from my sources. Even though using a harder aluminum alloy would not wear the striker on the handle, per the FAA it should be made from the same material. Hope this helps, Scott Rickard

I removed my up lock block to blueprint and analyze today. I have not analyzed the material yet however it is definitely a cast aluminum piece. Which most likely will be A356. The tensile strength of A356 is 10000 psi and the hardness about 60-65 Brinell. 6061 has a tensile strength 35,000 psi, 95 Brinell. 2024 tensile strength 40,000 psi, 120 Brinell. 7075 tensile strength 56,000 psi 130 Brinell. If someone made the swap to extruded alloy then the tensile strength is overkill on all 3 alloys. Wear is the downfall of the cast blocks. 7075 will be the most wear resistant of all. Tomorrow I will have the material type of the OEM block confirmed and will report back. If anyone is interested in me fabricating the blocks from 7075 aluminum the price would be $300 ea. or $565 for the pair. This would include per request hard powder coating in transparent blue, transparent red, black chrome, red, black, white, orange, clear, or plain. I have a Fadal 4020 CNC mill needing some run time and I like to help a fellow J-bar operator out. Thanks, Scott Rickard 256-431-8877

Hello all, I have access to a material spectrum analyzer that could quickly determine the alloy or each element percentage the original parts were manufactured . I would have to take the part to the analyzer as the analyzer isn't mine and it is a radioactive source. This could be done free of charge however I don't have an available part to analyze. The original part appears to be cast aluminum housing with a billet insert. The analyzer will only tell me what elements are in the alloy it scans not the process it was manufactured. (i.e. cast, forged, heat treated) If indeed there is a insert in the block as it appears then the insert could be replaced for considerably less amount. If interested in me machining parts to your specifics with CNC machinery please msg me. I can make the blocks for $300 or less, depends on your specifics. Thanks, Scott

Nice work,. I'm the one that has the M20F at Courtland the day you were there.

I bought this M20F with ESG transponder and ads-b 2i installed. Everything works great other than the 2i receiver gps light blinks amber and it doesn’t acquire gps signal. The 2i does power up and it does receive ADS-B signal and it will connect to my iPad. The ESG does receive a gps signal and usually a strong signal on all 12 stations. So now the wires from the ESG 37 pin connector have been traced to all connections and continuity checked especially on all 6 connections to the 9pin. With the ESG installed and powered on there is a ground at pin#8 5vdc on pin #1 #2 #3. 6.7vdc on pin #7 6.1vdc on pin #6. The receiver has been swapped out with another workin 2i still no gps signal with either receiver. The receiver is at the latest update and the ESG is set to both uat and 1090 in on the setup screen. The ESG software update is at rev 5 (latest is 7)and the hardware update is at rev 4 (latest is 5). The local installer tells me this should make no difference for resolving the issue. The local installer made all of these checks and so have I. The local installer wants me to leave it with him so he can take the trey out of the panel and go through the connectors again.I don’t like to leave the aircraft with him because he has bent the nose gear once before after I told him I didn’t want him towing it. His 9yo son drives the tow bar with a 4 wheeler! So I’m asking if there might be an issue with the update on the ESG or is there something else I may be missing? Oh and the bit codes are all 0’s. Thanks, Scott

The 2i’s worked with a ESG mounted in a Navion that I recently owned. The local stratus installer temporarily installed a brand new ESG in the tray of the Mooney with cloned setup screens netting the same results. This points back to wiring issues, however the pin out and continuity has been checked over 4 times now.

The 2i works and the GPS also works connected to a different ESG.

I bought this M20F with ESG transponder and ads-b 2i installed. Everything works great other than the 2i receiver gps light blinks amber and it doesn’t acquire gps signal. The 2i does power up and it does receive ADS-B signal and it will connect to my iPad. The ESG does receive a gps signal and usually a strong signal on all 12 stations. So now the wires from the ESG 37 pin connector have been traced to all connections and continuity checked especially on all 6 connections to the 9pin. With the ESG installed and powered on there is a ground at pin#8 5vdc on pin #1 #2 #3. 6.7vdc on pin #7 6.1vdc on pin #6. The receiver has been swapped out with another workin 2i still no gps signal with either receiver. The receiver is at the latest update and the ESG is set to both uat and 1090 in on the setup screen. The ESG software update is at rev 5 (latest is 7)and the hardware update is at rev 4 (latest is 5). The local installer tells me this should make no difference for resolving the issue. The local installer made all of these checks and so have I. The local installer wants me to leave it with him so he can take the trey out of the panel and go through the connectors again.I don’t like to leave the aircraft with him because he has bent the nose gear once before after I told him I didn’t want him towing it. His 9yo son drives the tow bar with a 4 wheeler! So I’m asking if there might be an issue with the update on the ESG or is there something else I may be missing? Oh and the bit codes are all 0’s. Thanks, Scott

Most likely the design part used a sharp corner or lightly broken edge for the ball seal. Less contact surface provides less area for foreign material to become trapped between the sealing surfaces creating a leak. This is why when available using a design drawing is a better option than measuring a used part. I can make you several pieces when I get some Teflon stock in.

If you provide the drawings and material type / grade I can fabricate these seats for you. I'm thinking for this to be legal they have to be fabricated from the original design drawing.