david Posted October 12, 2018 Report Posted October 12, 2018 I have question regarding Rotax 914 .During take off the Rpm rises 6200-6500 i.e overshoot for 63 second, where as 14 second only over shoot at 6500. line maintenance book suggested for push Rod Checking, crank shaft out of round verification etc. screen print attached.eg. All system inspection, Detailed Engine afftected inspection. 05-50-00 page 10. what is expert suggestion from you please
Anticept Posted October 12, 2018 Report Posted October 12, 2018 That is a huge overshoot. Follow the manual. At that high of an RPM, valves can float, and forces on the engine components are very high.
david Posted October 13, 2018 Author Report Posted October 13, 2018 9 hours ago, Anticept said: That is a huge overshoot. Follow the manual. At that high of an RPM, valves can float, and forces on the engine components are very high. vvv, good reply
david Posted October 13, 2018 Author Report Posted October 13, 2018 Yes of couse, but i start the Engine at Ground level , its found.....ok. IT smoothly touched 5800. then ?
david Posted October 13, 2018 Author Report Posted October 13, 2018 11 minutes ago, david said: Yes of couse, but i start the Engine at Ground level , its found.....ok. IT smoothly touched 5800. then ? knowledge is sea, dont drown in it.just enjoy the peral catchs.
Anticept Posted October 13, 2018 Report Posted October 13, 2018 If there's damage, it might not manifest immediately. That's the thing about judging the engine by how it runs. It only tells you part of the story.
FlyingMonkey Posted October 13, 2018 Report Posted October 13, 2018 How did you get it to 6500rpm? Starting it without a prop attached, or one adjusted fully flat?
david Posted October 14, 2018 Author Report Posted October 14, 2018 Sir either without propeller, Or with propeller with no pitch.i noted high rpm by default.
FlyingMonkey Posted October 14, 2018 Report Posted October 14, 2018 20 minutes ago, Roger Lee said: Andy, Something strange here? Seems like it to me. I think there is a language barrier keeping us from getting the complete story...
Ed Cesnalis Posted October 14, 2018 Report Posted October 14, 2018 I assumed you needed a prop to prevent it from easily overspeeding? That was true of my 'early' Rotax.
sandpiper Posted October 15, 2018 Report Posted October 15, 2018 I would think this not only created a problem within the engine, but also the prop. I don't think I would want to fly that aircraft unless appropriate rotax and prop manufacturers inspections were done.
cdarza Posted October 15, 2018 Report Posted October 15, 2018 Very strange and i initially thought a language barrier but i dunno ....... He did mention 'during takeoff...." so unless a language issue ... it implies the prop was attached yeah ? lol
rtk Posted October 15, 2018 Report Posted October 15, 2018 UAE - OK. Your location translates from Chinese to English as: "Dubai passenger plane crashed in Russia."
david Posted October 16, 2018 Author Report Posted October 16, 2018 ohhhh,, i am consultant in Dubi.... any violention on forum please tell me. i am increaing experties.
david Posted October 16, 2018 Author Report Posted October 16, 2018 1 minute ago, david said: ohhhh,, i am consultant in Dubi.... any violention on forum please tell me. i am increaing experties. A life is either all spiritual or not spiritual at all. No man can serve two masters. Your life is shaped by the end you live for. You are made ...
cdarza Posted October 16, 2018 Report Posted October 16, 2018 Are you joking my leg ? (filipino idiom LOL)
david Posted October 22, 2018 Author Report Posted October 22, 2018 please help me in finding problem if any in propeller that is MT.brand, composite type, 03 blade. Any Repair ,maintenance required?as Rpm of Rotax Engine goes high 6500 Rpm may afftect propeller or not?
david Posted October 22, 2018 Author Report Posted October 22, 2018 Variable pitch propeller is under uses.
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