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Browncbr1 last won the day on April 23 2020

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    KTYS - Knoxville, TN
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  • Model
    67 M20F

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  1. Right, I’m just talking about the expanding threads that go into the aluminum transducer housing. The jpi housing is easy to crack after just a few threads. Putting thread sealant on flare fittings would be useless. Haha
  2. I used permatex thread sealant on the tightening NPT fittings on my fuel flow transducer to solve mine a few years back.... then had the same issue, but less pronounced and it was solved by rebuilding the fuel selector with all new o-rings. I saw the slightest hint of dye on the FF transducer, but none on the selector. Hopefully, there is no leak coming from any of the NPT fittings on your mechanical fuel pump. it's very tight access back there.
  3. if by original, you mean the small 2 1/2" DG that came with our 67Fs, then yes, I have one on the shelf. it was working when removed. been on the shelf in dry storage since 2017 or 18 though.
  4. if it does it worse the higher you fly, then air is getting into your fuel system... sometimes it's from the gascolator/valve selector. Sometimes, it's from a loose fuel line fitting. Is fuel flow unstable also? this is usually accompanied by what feels like slight roughness or missing. wobbly fuel pressure corroborated with wobbly fuel flow points to air in fuel. check for loose wire connections and/or ground on for the sensor and also check that the pins are clean and straight. clean the fuel screen on the right side of your fuel servo and also clean the gascolator and check the gasket for cracks. Do not over torque the gascolator bowl bolt!!! iirc 20in/lbs. There is a little rubber coated metal washer on that bolt that should be replaced every several years.
  5. You must have a special colemill baron. Fox star colemill 58 barons usually at 25 LOP 8-10k get 178-185ktas and ~13gph per side. For me to burn only 10gph per side, I’d be going along about 160kts or so. Is yours a 55 or 58? i see the video, he’s at 12k with 2200rpm to get that low fuel burn.
  6. Looks like cross hatch to me. follow skips advice.
  7. true, and time to climb and descent through icing is less in the baron.
  8. I'd pay and extra $10k for non-fiki tks.. probably not more though because it's more things to maintain and costs a little speed. I visit NE ohio year around, but typically figure that December-March is no go season unless I plan to stay just a couple days or so. Honestly, for my 67F, I think the best value would be a just a slinger on the prop (alcohol or tks).. For that, I'd pay proportionally more than a full tks system. From my experience using alcohol props; it ends up slinging all over the plane anyway, just except for out at the wing tips. The baron I fly has alcohol props and I've never had to actually use the wing boots. So, I'd pay for a small 2 alcohol prop slinger for sure.. problem is, I don't think an stc like this exists!
  9. I cobbled this together several years ago. Works well. I need space in my garage! Free to anyone picking up in Knoxville, TN.
  10. Given the cost and lead time of overhaul, I’d definitely pull some cylinders to see what can be found.
  11. @Ned Gravel I’ve got one on the shelf that worked just fine when removed for upgrade. I also have a nearly new Sandia digital encoder that can go with it. Let me know by PM if needed. Craig
  12. Depending on how the engine has been operated, simple valve lapping and/or solvent flush could bring the compressions back up. for what it’s worth, my engine has the original crank and wide deck case. So, the total time is over 6000, but they were both inspected/serviced at overhaul ~70 hours ago. Cylinders can be reworked if not too far gone. New angle valve cylinders have a long back order these days. in my experience, glass panels and autopilots cost more than engine overhauls. If the engine is running ok and making good power without making metal, I wouldn’t be scared off. Just make sure you know what kind of case and lifters it has. It could be that the previous owner replaced the original engine case simple because they wanted roller tappets when they did the overhaul. Log books should tell the story.
  13. When you install a new engine and/or prop, you should check for prop tracking before running it and/or dynamically balancing it. Just a thought on what you could easily check.
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