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  1. 49dimes

    Troubleshooting Rotary Valves

    Your most welcome. Trying to find out problems on line is very difficult because "like symptoms" can cover many different issues. Small engine repairs really need "hands on" evaluation by experienced personnel. But look at the bright side. You got the plane and engine for a song :). And like...
  2. 49dimes

    Troubleshooting Rotary Valves

    My YS 4cycles are rotary valve induction. Virtually maintenance free. The only thing I can think of is to check the clearance of the back of the rotary disc to the back plate of the engine with a feeler gage. You would need to know what the factory clearance is. But I really think you should...
  3. 49dimes

    The 'What did you do in your workshop tonight?' thread

    @acerc Very nice :attaboy:.
  4. 49dimes

    The 'What did you do in your workshop tonight?' thread

    Yes. It does not glide as it should even being a clipped wing and weighing 17lbs. With power at idle it would lose altitude very quickly and not drop the nose. The first picture shows the plane about 50 feet out from my position and just over 1/4 throttle. Had to slightly increase throttle to...
  5. 49dimes

    The 'What did you do in your workshop tonight?' thread

    It has turned from soaking hot to soaking wet weather so I went and started the process of painting and sealing the bottom side of the Cub wing. The Rustoleum "Marigold" is a very close match :fist_pump:. So I am sending the Rustoleum "Golden Sunset" off to the west :on_the_go:. The wing and...
  6. 49dimes

    Scale 50% Dalotel 165

    Now you really have my curiosity and attention :geek:. Your flight control system is very sophisticated. What do you want to change? I'm guessing it's the servos. The BLS H50B has several control board and programming issues. I ended up just getting away from them but I see BB has a new version...
  7. 49dimes

    Yippee! What the postman brought

    Those are really :cool:. Be sure to get us some pics of your install :big_yes:.
  8. 49dimes

    Carb & Fuel Flow Question

    The "pump" is actually the underside of the piston and engine crankcase. The "leaflets" open and close like valves with the reciprocating motion. The top of the piston and cylinder is the "pump" in 4cycles like your Valach's. But simply these carbs have two sides. The pump side and metering...
  9. 49dimes

    The 'What did you do in your workshop tonight?' thread

    I'm "Bible" slow. I can do in a thousand years as most do in a day :epic:.
  10. 49dimes

    Carb & Fuel Flow Question

    That's the metering diaphragm. Don't know if the one in the K-20 WAT walbro kit is the same. It very well may be. If you are inclined to stay with the Bing carb try cleaning/spraying carb cleaner in all the tiny passages. Varnish build up from evaporated fuel can cause problems / restrictions...
  11. 49dimes

    The 'What did you do in your workshop tonight?' thread

    Yes. It does....I mean....YES. IT DOES! :geek:
  12. 49dimes

    The 'What did you do in your workshop tonight?' thread

    :ooh?: a whatucollet !!
  13. 49dimes

    Awesome Video Thread

    No. It's WOW. :laughing:
  14. 49dimes

    Discussion Flap/Elevator mix a' la C/L Stunt

    The Hangar 9 Cap 232 I had many moons ago had an elevator flap mix that I set negative and positive both directions allowing both ailerons to go up like an air brake or down like flaps. When pulling up elevator while mix activated both ailerons would pop up. This allowed the plane to perform...
  15. 49dimes

    Carb & Fuel Flow Question

    Ok. Have safe travel.
  16. 49dimes

    Carb & Fuel Flow Question

    No. That price is insanely ridiculous. Some knob will buy it though lol. Sorry Bart I meant the HDA246A. Mile high has it for 51$ and in stock. He says 60-70cc engines but it will do just fine on the ZDZ 80 single.
  17. 49dimes

    Carb & Fuel Flow Question

    I would use a new carb. Walbro HDA248A will work well with 60-80cc engines. The reason I state this is... replacing the diaphragm and pump side gaskets does not always work as you have found out. Sounds like you have a restriction internally or even a faulty check valve. When I say check valve I...
  18. 49dimes

    I’m going out flying thread 2019

    Now that flying site is awesome. I would be proud to be a member. @pawnshopmike Is it private or publicly owned? And out of all those wonderful planes on the line the one that caught my eye the most is that 33% Spacewalker. Flew a friends many years ago but never got around to building one for...
  19. 49dimes

    Awesome Video Thread

    It looked as if a couple of planes had a mid air but after watching again I think UB right.
  20. 49dimes

    I’m going out flying thread 2019

    Too Hot to fly this weekend. Did get the wheels up on the QQ300 this evening :cautious:. Take off at 7:55pm CT. Boy those led's are bright. Wish I could find some electric flyers around here that would fly at night. New soccer complex went in not too long ago would be perfect for it.
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