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Blueadventures

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  1. Blueadventures
    For forum members information (excluding Skip because he is always negative and won't believe this is correct). The leaky fuel tank drain has flames at it, burnt grass area to starboard side of front end as that's where the vapour would have been going (refer smoke plume drift). Ignition occurred and source spread, prop wash extinguished grass fire but not the aircraft fuel areas. Owner was seated in cockpit doing a start to provide an engine run (wing cover on and still tied down). When fire observed he made a radio call to alert airports fire rescue, they don't monitor outside of RPT, he made further communication to ARO and operator about this.
  2. Blueadventures
    Don't fly while dripping fuel leak under a plane, back fire on start up, small pool of evaporating fuel and light breeze wrong way and you have a fire possibility. Happened at Proserpine to an RAA aircraft a few years back. I don't like the push up steel (get rusty) ones, not uncommon to leak and need replacing.
  3. Blueadventures
    He did state that earlier in the updates, plus being a heavier engine it needed to shift rearwards, hence the spacer. Savannahs have much longer spacers. Great Idea and have seen two R Jabs and owners happy with them and they would have excellent w7b and mod info. I can't wait to see it flying and being a fairly straight forward engine brand swap under existing cowl.
  4. Blueadventures
    Not really, but, hey did I tell you I got my new ASIC card the other day, all good for another 2 years. Cheers🙃
  5. Blueadventures
    Agree, however I'm happy with life on my little Carby island surrounded by water. Have to be careful of the crocs, sharks and 'R is' gremlins (on the rare occasion they show their heads) and associated costs.🙃
  6. Blueadventures
    I have the Synchromate and also a tube unit.
  7. Blueadventures
    I'm happy with carbs, don't want the expense of 'is' diagnostic gear, programs and the headache of chasing fault codes. UL & ULS; the parts, maintenance and associated costs suit me and I pretty much know the critters inside out. I'd be happy still with cars of the 70's and 80's with the upgrade of points to electronic ignition, and stop there. (Don't miss bonnet up in the rain attending to the needs of the points. It was character building.)
  8. Blueadventures
    That’s right, need to check the carby and its fit, then follow the manual for mechanical balance, then ensure throttle travel is same for both; a visual assessment then run up to verify all good. Two of my experiences are July 2024 asked by neighbour to sort a very rough running Rotax ULS (history was that local lame shop had made adjustments) I adjusted carbs (first recording where settings were) after balance all good. The setting where all over the show, looked in aircraft log no record of the work or who did it. I found out from another source. 2nd example years before above and on a SavXL did M balance but roughness when rpm increased, a bit of further checking and head scratching found the throttle lever on the carb had been bent for clearance, only a little bit and pretty much impossible to see. Had to fit a straight edge (6” eng rule) to see the slight curve. When straightened all good. All part of learning and building experience.
  9. Blueadventures
    It could have been so easy for them as they have their patterns / casting method and could have just allowed for a bit more material so a larger diameter hole could have been made. In my opinion they miss a possible opportunity to perhaps make an improvement on the Rotax design. Opportunity missed , I say.
  10. Blueadventures
    Regarding 2) Carb synchronisation behaviour can change. The balance pipe is best disconnected for pneumatic sync. The benefit as I have been told is the low / idle RPM ranges. In the past I was planning to fit an increased id pipe taping a larger diameter thread into a manifold set and place nice curved radius elbows (rather than the abrupt 90 degree type on the engine) as that should also smooth air movement. A few years back someone on this site made a setup whereby he welded threaded flanges to allow a larger diameter balance pipe. Just chasing any in service findings / results. I can see it being a benefit one well adjusted and maintained engines.
  11. Blueadventures
    Has anyone modified their Rotax 912 ULS with a larger size crossover pipe and if so what where you findings? There is a production 1" id manifold (Flygas Engineering) and cross over pipe available, likely $2,000 AUD in price. Seems the main benefit is smoother idle and low rpm's.
  12. Blueadventures
    Just bumping question, are any forum members attending this course? The date should have read 2026 (My bad) 19 to 21 January 2026.
  13. Blueadventures
    If any doubt you could sit the gear wheel on a piece of thick paper and spray paint around it and post that to them to ensure correct size. Only if there is a doubt about size. Cheers.
  14. Blueadventures
    It would have been a good development to increase the cross over pipe at the time of doing the casting patterns for the intake manifolds as there is good feedback from those that do such about the smoother idle and possibility of operating at 50% power in the instance of one throttle cable / connection breaking and engine going to full power on one carby. Would have been a good change to what Rotax have there in my opinion. (I'm open / planning to increase my R ULS balance pipe i.d. size.)
  15. Blueadventures
    What fuel in use and method (Carb or injected)?
  16. Blueadventures
    What fuel in use and method (Carb or injected)?
  17. Blueadventures
    Wonder if there are applicable colour endorsements available?
  18. Blueadventures
    Try my epoxy method on an old oil bottle and see what you think about it. I've done it a few times.
  19. Blueadventures
  20. Blueadventures
    No flying this weekend with our little cyclone visit. Hope everyone in the area is safe. The effect is now between Bowen and Sarina. Should be over the coast in 3 to 5 hours.
  21. Blueadventures
    Agree, and I do it still, also when doing low rpm descents I bump rpm up to observe response then back to rpm setting.
  22. Blueadventures
    Agree, also about 9 years ago rotax altered the spec of their oil filters to be a couple of mm longer and then they would not come off with the header in place on the factory exhaust system (talking UL and ULS).
  23. Blueadventures
    It would be a mockup, my Rotax set up is similar re header to oil filter (although a bit more clearance) I cannot remove my oil filter whilst the header is in place. This is not an issue; as I replace the oil filter every second oil change (100 hrs) and remove the header as I 'Kopper kote' the ball sockets of the header to the muffler every 100 hrs. I see the mock up is tube in tube fit header to muffler and expect it would be a ball / socket type to allow slight movement for alignment etc.
  24. Blueadventures
    I was in the back, they couldn't get the engine running right so cancelled and refunded the ticket. Heard later recent o that day it had a engine issue and only just got back to the strip.
  25. Blueadventures
    What aircraft am I in here?
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