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skippydiesel

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Everything posted by skippydiesel

  1. skippydiesel
    Hi Arron25, Aside from the core topic, its quite interesting how some people, can make a claim, with little or no supporting evidence and expect it to be accepted without challenge. When asked for the evidence, the claimant may ignore the questions, becomes defensive and aggressive. The latter often manifesting as, strident references to their own expertees, combined with personal attacks on the questioner. This is irrational - the sensible person would either admit that the claim is speculative or provide the evidence and the questioner(s) move on. Its a sort of bullying tactic, by the claimant, that does nothing posative for the Forum, the topic at hand or their credibility. ""There's nowt so strange as folk". 😈
  2. skippydiesel
    Hi Moneybox, I can see how the U tube might work but how do you remove the effcets of manifold pulsing?😈
  3. skippydiesel
    Here we go again - more claims to pursue (strategy of distraction), rather than addressing the reasonable questions, arising from the first claim- . "The larger balance tube does give a better idle performance...... " "Please quantify - what is "better" about the idle AND what is the operational advantage of this improvement, over the OM design?" Until you either substantiate your claims, answear some fair questions, I have to assume this is just a load of BS and I advise others to be just as sceptical😈
  4. skippydiesel
    "I can assure you Turbo I know what I am talking about." As I observed earlier, a self claimed expert, who wont even give his definition of a Rotax 912 idle, makes it very difficult to take any subsequent claims/statements seriously😈
  5. skippydiesel
    Still no facts😈
  6. skippydiesel
    Of course I will do as I want, just as you do. Its not whinging to ask for facts - something glaringly lacking, from all the opportunities you have had, to respond with data. You seem unable to even give your definition of idle (in this context) - a simple question, that is at the base of your support of the Big Tube - why is that? Instead of responding to reasonably/civil put questions, you attack me - not a good strategy. Makes your position on this topic look a tad shaky and puts into question all the other statement you have made. Your responses, very similar to others questioned on the Big Tube, do nothing other than make the concept, as an effective modification, suspect.😈
  7. skippydiesel
    So the primary benefit is at idle. What do you define idle as? I don't know about your flying - my engine spends very little time at what I would call idle - sub 2000 rpm. Cold start goes straight to about 2300rpm. Warm up is at 2500 rpm. After flight, Taxi @ 2500+ rpm. Shut down my engine as soon as I park 1400-1770 rpm, for as long as it takes (likly less than 30seconds) to do a quick ignition check.😈
  8. skippydiesel
    Yes. Rarely results in a more effective organisation but thats not what the takeover people are about.😈
  9. skippydiesel
    Thats interesting - An hour or so, before I took off, there were quite a few blue bubbles to the north (Warragamba , Bringelly area) but none when I was up ????? Thanks for the "heads up" I will revisit the SE2 settings - I did not deliberately avoid entering my rego😈
  10. skippydiesel
    What did you replace the Curtis valves with?😈
  11. skippydiesel
    These are new valves - they should not need to have the o-rings replaced but if all else fails I will certainly replace them in the hope of a fix😈
  12. skippydiesel
    Shouldn't have but wont discount completly; Tanks were well flushed before test flights. ALL fuel is passed through a Mr Funnel In 195 hrs, no contaminants appear in pre flight fuel drainings I have tried a prolonged drain/flush no improvement. Next time tanks are empty, will remove drain valves and attempt a clean - see what happens.😈
  13. skippydiesel
    Thats an ATEC Zephyr and the initial fire is concentrated in the engine bay - not the fuel tank area.😈
  14. skippydiesel
    Or use up all the fuel - just topped up the tanks today, so will be a while before empty. This should not happen though - must be a crap design if so easily defected. Will try your suggestion - nothing to lose except the staines and very slightly lower fuel consumption.😈
  15. skippydiesel
    My Sonex wing tanks have SAF-AIR push type fuel drain valves. They leak or rather they weep very slowly. The whole aircraft, including valves, have only done 185 hrs in about 2 years and the valves have been leaking for most of that time. I make a point of pulling each one down after every preflight drain – doesn’t help. The weep is so slow that this is more of an aesthetic problem – stains on my wings, than any practical issue. All helpful suggestions welcome😈
  16. skippydiesel
    Weather forecast for heavy rain this arvo - sky looked inviting this am, so went up to try out my Bluetooth headset adapter & AvTraffic. Small problemo, no small aircraft flying in the Sydney Basin. Very unusual. I guess the weather forecast made everyone stay at home. Tooled around enjoying myself, for 1.5 hrs, in the hope of finding an enemy aircraft - no luck, so no report on system efficacy. Next time 😈
  17. skippydiesel
    True! However there are sometimes other reasons. Its not unknown for aesthetics to be one, air flow, prop clearance (nose wheel), etc What weight is the Zonsen (?) compared with the origional Jab?? .😈
  18. skippydiesel
    Thats great for those who value such. Without empirical evidence AND most importantly, a clear engine operational benefit, it strikes me as being a faith based investment. This concept has been vigorously debated, in the Rotax Owners Forum, over about an 8 year period. No empirical evidence has ever been presented. No improvement to normal engine management has been shown, bearing in mind that most Rotax 9s spend every little of their operational life at idle (purported to be the main area of improvement). https://www.rotax-owner.com/en/general-tech-discussion/6709-polishing-intake-manifolds Given the simplicity & potentially low cost of this concept, why has Rotax not adopted it as a standard fit or offered it, as an after purchase, performance enhancer? 😈
  19. skippydiesel
    Ho Kiwi, Your twin engine manifold pressure/vacuum gauge is a great idea - wish I had one. I guess its likly to use two Bourden tubes to deliver the readings, so not so diffrent from my two gauge motorcycle carby balancer, just more compact.😈
  20. skippydiesel
    Hi Rapture, "Our prop spacer arrived a couple of days ago." Aside from the obvious, moving the prop forward, what is the purpose/benefit of having a prop extension in this installation?😈
  21. skippydiesel
    Hi Kyle, "The larger balance tube does give a better idle performance...... " Please quantify - what is "better" about the idle and what is operational advantage of this improvement over the OM design?😈
  22. skippydiesel
    Hi Blueadventures, "I have the Synchromate and also a tube unit." Is this, a sort of answer to my "Do you follow, as per Rotax advice, your mechanical carby balance, with a pneumatic balance?" ie you have the gear, so am I to assume, you have used it? I Googled Synchromate carburettor balancer to try & get a handle on the equipment you may be using to do a pneumatic carby balance - nothing! Well not nothing, Google always gives something; Synchromate refers to a veterinary injectable medication containing the synthetic hormone cloprostenol, primarily used in livestock (cattle, horses, sheep) for reproductive management like synchronizing heat cycles, inducing ovulation, terminating pregnancies, or inducing labour. There is a more likly contender; TecMate SynchroMate (TS-101), for synchronizing carburetors or throttle bodies - is this it? There was also something called a SynchroKing, which may be similar to your TecMate - all pretty pricey. For what its worth; The Rotax Owners Forum technical advisors have opined, that the above type devises, are not as good as a simple vacuum gauge, for balancing carburettors.😈
  23. skippydiesel
    One of the attractive features of this Forum, is the wonderful tangents the conversation can go to, without people getting all huffy about adhering to the origional topic. Sure it can be frustrating, if you are after targeted advice - most often a gentle reminder, will bring the responders back on topic.😈
  24. skippydiesel
    Hi Blueadventures - Third attempt to get a bit more information The above statement, (now further back) mentions mechanical carby balance, what of the pneumatic balance??? Common Mate what's the big secret? Do you follow, as per Rotax advice, your mechanical carby balance, with a pneumatic balance? If not, why not?😈
  25. skippydiesel
    I have used a pair of cheap (Asian made) twin carb motorcycle vacuum gauges, for about 15 years now. They are excellent! Come with a little adjustable valve for each tube, so that the needle pulse fliker/bounce, can be "removed". The "face"/ needle, can be zeroed if needs be. I had to purchase longer vacuum hose, so that I can have the gauges in the cockpit, while engine running. I always swop tubes, to assess consistence of reading - so far no discrepancy. Can't understand why people go and purchase expensive digital/electronic stuff ($500++?) when something like this is all the owner maintainer will need. ($21-$51) 😈
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