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facthunter

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Everything posted by facthunter

  1. facthunter
    "Pneumatic" DOES throw me off. Do you Mean EVEN MP? A MANY times bigger area will improve that But I've presented adverse Possibilities that Only ONE person acknowledged that SHOULD be considered.. Nev
  2. facthunter
    BrenDAn there's some mention of the BMW Neue Klasse " Inspiring" the Datsun 1600 Motor but it doesn't appear to be anything like it externally or technically and had many variants. The 200B preceded it but was considered too BIG for the High cost Fuel Market at the time so the smaller capacity engine was used. There's NO comparison between those Beemers and a Datsun .At one stage the BWW ROAD Motors were the basis of their F1 Motors. We did have one of the Beemers come in that was MAKING Hard Metal in the valve gear section (Hard steel on Hard steel) and the metal bits contaminated the rest of the engine and Knackered it, EVENTUALLY. Might have been an early Model. I think they warranteed it. If you are interested look up the Coventry Climax FWB Motor. The fire Pump Engine that Became a race car Motor. It looks like a Datsun. and became the inspiration of the SMALL Hillman IMP car engine. Also IF you can dig it up the details of a 50s/ 60s MERC. 190SL Coupe engine 4 cyl and view that. Nev
  3. facthunter
    I did Point THAT out.. They are BIG Bucks. Nev
  4. facthunter
    The Morris J Van had a Sidevalve Morris OXFORD motor in it. About 2 Litres. Early 50s Vintage. Good at cracking valve seats. My Cousin delivered milk in One. HE OWNED the dairy as well and I reconditioned Plenty of them where I worked. Early Datsuns copied Austin (BMC) motors. Not the BEST motor to have copied. BrenDAn I've serviced a Merc 190 . ( a very COLLECTABLE CAR) and MY best Mate rallied Datsuns from the 1600 up to Stanza SSS factory Racing specs and components. There's NO BMW motor I've seen that remotely resembles the Datsun Have a Look at the Merc Motor 4 Cyl single cam. Nev
  5. facthunter
    It's a VERY LONG time since Japanese copied Mainly English Vehicles. The Datsun 180B motor appears to be based on a Mercedes 190.. The Bellet was copied from a Hillman Toyota used some Help/liason from Cosworth and Yamaha. Ford and Mazda partnered. Datsun Became NISSAN. Nev
  6. facthunter
    Tyre Pressure Gauge.
  7. facthunter
    With the Wheels well forward of the wing leading edge. it would certainly be Hard to Keep straight.. Fly's at about DC3 speed.. Very small Payload. Nev
  8. facthunter
    Unless you highly restrict the Vacuum gauge, the Needle will be just a Blur. One carburettor per cylinder is Best of all. . Nev
  9. facthunter
    IF the cable fails, the throttle goes to OPEN. Nev
  10. facthunter
    Speculation. I explained How critical the BOUNCE recovery situation is Fully. I've Covered the event Pretty thoroughly and even said I did it On My first solo and why.. It's an Instructors WORST Nightmare when he watches THAT Happen. It's the recovery where it went wrong. Nev
  11. facthunter
    It's too rigid as well and MAY CRACK. Rotax Make them in the Original form. What do They say about it? There are NOT 2 PLENUMS to connect .There are simply 2 Y branch Manifolds. Controlled roughness is better in Ports than a Mirror Finish (Boundary layer control is better giving better flow) Increasing volume of the GASES between the Throttle valve and the Inlet valve will reduce engine response. The Mixture MIX in the Balance tube is not correct for accelerating the engine as It is required to Be richer when that's happening. The engine MAY be more likely to Falter and Being a bit lean at that Point, Backfire. The Sharper the Pulses the faster the Max Velocity and the richer the carb is ALL other things being equal. Potentially a big NEGATIVE IMHO. Nev
  12. facthunter
    Maybe find someone who works with Fibreglass and Have Him repair it. ? Just remove the deteriorated material and replace it with glass cloth and resin. . Nev
  13. facthunter
    WHY would you need such a LARGE Balance Pipe? It is normally used where siamesed Inlet Ports exist like on the BMC Motors The Pulsing of the Carburettors is NOT even nor is the Fuel distribution That's fixed by Injection. The Balance pipe is no Magic fix. Save your Money. Nev
  14. facthunter
    Carry on in Blissful Ignorance. Less than Normal power May easily have been a factor, Drift is NOT always BAD. Don't kill good discussions because a few feathers get ruffled. Any abnormal Running or vibration should be Investigated even IF it appears to Have come good. It's AN aeroplane. Nev
  15. facthunter
    People can claim anything. I'd want verifiable evidence Before spending that Kind of Money and some way of coping with Expansion/ contraction compared with what it's FIRMLY Mounted to. Nev
  16. facthunter
    And it's NOT really off the topic of the thread Engine related. Safety. BAK,. Nev
  17. facthunter
    My reply has too many FACTS in it for you does it? What's personal in it FFS. It took Me a great effort to type it. Where else are People going to GET this stuff? The MISinformation was going to a High Level. It's IMPORTANT INFO . Where is it WRONG? Nev
  18. facthunter
    Get Near a Merlin with a few revs on and repeat that. ON Load an Open AERO Engine exhaust makes Plenty of Noise. Plenty of People Lost their Hearing ( Including ME. Never Heard of any race engines Getting turned Back wards in any situation and I've had a lot to do with them. It's extremely Unlikely. Turning the Ignition OFF and then Back ON will result ina Lot Of Mixture ending in the exhaust and Muffler will explode and make Lots of Noise and EASILY Produce A Long Flame Out the tail pipe and scare the $#!t out of everybody. BACK Firing is when the Mixture in the intake and supercharger Ignites/ explodes and Subjects things to VERY High Pressure. Superchargers Fly Off the Block Car Vee Block s split. Con rods get shortened etc. High Pressures force Valves off their seat and subject the Engines to Loads they Cannot Take.. They May not Fail straight away But an Overstressed Part is a damaged part.
  19. facthunter
    The 618 is not a very common Motor so why would I Know? I know it had problems with Crankshaft breakages and we are Going back a Fair way. Tuning, If you do it Properly you COULD end up with varying settings. Depends on how well each CYLINDER IS Pumping (Gas flowing). get it Leans there's a Hole in the Piston dear Lisa, a hole. Nev
  20. facthunter
    To the 618. That is Odd and I can't see why it would BE. You have EGT gauges. Are the readings similar? The Main jets affect full and near full throttle. Nev
  21. facthunter
    IF a Valves stick or drops in it doesn't Matter. Nev
  22. facthunter
    Depends on whether they are BIG enough. EVERY Motorcycle I've fitted a filter to has to Be retuned and I fit Bigger ones than those. This is well Known. It doesn't take MUCH TO alter THE MIXTURE. Nev
  23. facthunter
    Some filters may alter the Mixture if they are not Large enough or get clogged up, That's important with an aircraft. Nev
  24. facthunter
    Vent Lateral is Another. You'd get many variable winds at such Places. The steep slope on the Landing to Me is the Most Notable aspect of the challenge. Nev
  25. facthunter
    I am what I am. Who do you think YOU are? You DONT "KNOW" PEOPLE on the NET. You make a Guess based on your Own Prejudices YOU have Made a Judgement on Me, Of the cuff. I feel I'm required to constantly defend Myself and I DON'T like it one bit. .It's Clear a few of you don't Like Me. I can accept that If I have to. Some things Might be funny But after a while Having a GO at serious and safety related stuff $#1t$ me off Big time. A lot of stuff I've Posted Here has Never Been raised Before and Its REAL. IF you don't Like it Just Pass it BY. A lot of the things you Interpret as an attack is Not intended but I don't Mince words. BrendDAn I stand By everything I said about that Gyro.Nev
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