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facthunter

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Everything posted by facthunter

  1. facthunter
    IF they go broke they cannot function. Nev
  2. facthunter
    Long studs have been breaking. The alloy engine Parts expand more than the steel studs do thermally and they stretch. A fairly common problem in such situations. Nev
  3. facthunter
    Some outboards Have split Big ends even though they are roller, other wise the Cranks would have to be pressed up. Heads are often gasketless with 'O' rings .You can have lots of studs as the Ports are well away. Nev
  4. facthunter
    Over stressing WOULD occur., Whether the damage shows is another Matter. Aero engines that have exceeded the RPM Limit are Junked whether they still run or not. Crack testing doesn't show everything. Aero engines are Built as light as Possible, consistent with reliability. Nev
  5. facthunter
    Bloody rotten thing to Have Happen. You Lose your faith in Human Beings. Nev
  6. facthunter
    NO thanks. Nev
  7. facthunter
    Beware of going low. Don't practice to below 200 ft till you are VERY good at it. It requires very good control of Airspeed by precise pitch management. The controls are very crossed up .The Rate of descent is much higher. Recovery to the flare has to be very controlled and precise. Many people who think they are sideslipping are Just doing an ugly SKID. I've often asked pupils and other instructors to do one for ME and MOST FAIL dismally in doing it Properly. IF you have flaps or a very draggy plane you don't need to do it. The Wing must go down first and you stop the Nose falling with rudder. The correct speed should be low but safe. HIGHER SPEEDS stress the Plane. This requires LOTS of Practice to get right, and you won't get it right IF you are NOT taught it Correctly. Practice at Height till you are real good or you will hurt someone. Nev
  8. facthunter
    Such things MISSING won't do it any good. It cannot be Designed for that. Nev
  9. facthunter
    It does have two separate Parts and some studs have snapped and there's only 4 per cyl. Nev
  10. facthunter
    Alumiprep and allodine are the two treatments. Leaves it looking slightly yellowish. I got them from Aviall. Nev
  11. facthunter
    Not often will that have much relevance to how WE fly. OAT would be Below minus 60 C. I don't know how the Oil or coolant would cope. Nev
  12. facthunter
    The primer should probably be an etch or use some other al preparation for aircraft. I would NOT recommend any soft surfacer that must be sanded. I'll look up a couple I still have some of Here, later today. Nev
  13. facthunter
    Isopropanol is an ALCOHOL and won't mix with Wax, Petrol or oils other than Castor. It's a solvent for shellac. But that's not much help. Nev
  14. facthunter
    Why paint ALL of the surface IF it's alclad? Nev
  15. facthunter
    Head gaskets are the Weakness/Failure spot in Many Motors. Bolts etc compromise Port size, position and shape. . Nev
  16. facthunter
    Why chance things? It's an aeroplane. Nev
  17. facthunter
    The Merlin has no head gaskets. Each Bank has the cylinders and heads made in one piece and held to the case by long studs. Nev
  18. facthunter
    Hard to do valve seat Inserts Bugatti's are similar. Nev
  19. facthunter
    Genthin thinners will do. I think it has acetone in it. Nev
  20. facthunter
    POP Rivets are a bit crap anyhow but have to be used in some Places, because of lack of accessibility on the inside. Nev
  21. facthunter
    You'll NEVER GET it Turbs. Planes are Not race cars. Nev
  22. facthunter
    You're over thinking it. Under laws of STRICT LIABILITY the whole scene is farcical. Nev
  23. facthunter
    It's to Better cope with the reality of the situation you operate Under where LIABILITY is HIGH. This is CASA's responsibility to Manage, Ultimately. THEY have the Ultimate say. You can't deny that. Nev
  24. facthunter
    For an Engine well before it's time, Look up 1914 Delage Four valve desmo Racer, One of three still left. I knew it before the Block had to be replaced. It was worked on By Jack Nelson at Romsey, A very good friend of mine and IT was a " Runner" for quite a while being entered at the Geelong sprints several times. The replacement block complete with Head was done At Malden involving "Up the CREEK Motors" which specialised in Austin 7 s. THAT CAR is Priceless. Another NICE motor was MILLER a racing speedboat Motor which was the BASIS of the OFFENHAUSER race car engines, later. US made. Superb quality. Late 20 and up to Post war. I had the Privilege to work on one in the 50's. It's well worth looking this up. Nev
  25. facthunter
    The engine never had a TBO above 650 Hour's and only a Very few countries allowed it on the CIVIL register for RPT. Nev
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