dav8or

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About dav8or

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dav8or's Activity

  1. dav8or added a post in a topic Pivot point for the control sticks?   

    Sorry, I should have mentioned that I have a somewhat temporary custom stick that I have been using for a while now. It has a set back in it because I was unable to get much down elevator travel when I have the seat laced back to give me enough leg room so my knees are not up in the panel. With that I have also rotated it to center the grip portion of the stick between my legs. I am using a grip from a Sea Doo which is fairly thin. I might try a much shorter stick which would pass below my knees but would have to be further forward to allow full up elevator travel. I think it would also feel very unnatural to have the stick travel under my knees.
    My thought is to make spacer blocks for the 2 control mounts on the cabin floor and then make an adapter to reach down to the existing aileron linkage from the higher linkage of the raised controls. With that I would probably also have to shorten the sticks which is OK with me. This is a speedwing I am dealing with and I am used to its handling. I don't think the reduced motion of shorter sticks will be a problem for me.
    Thanks,
    Dan
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  2. dav8or added a topic in Avid Flyer General Hangar   

    Pivot point for the control sticks?
    Has anyone ever raised the pivot point for the control sticks in an Avid? I was thinking about adding a 1.5 inch block under each end and making an adapter for the linkage. I would like the pivot point higher so I am less likely to run out of aileron travel when I hit my legs with the stick. I know I will probably have to shorten the sticks a bit to clear the panel but I am OK with that. I have had a couple of hairy crosswind landings recently where I had this problem. A little more aileron would have made a much nicer, more controlled arrival.
    I may mock something up to see how much it might gain me.
    Thanks,
    Dan
    • 3 replies
    • 278 views
  3. dav8or added a post in a topic Tips for removing crank gear on 582?   

    I decided to look through some of my old hangar mate's boxes that I inherited and found this:
    It looks like he had modified some type of automotive puller. It worked and the gear popped right off. Easier than expected although the gear was only on there for about 6 months this time.
    Thanks, Dan

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  4. dav8or added a post in a topic Tips for removing crank gear on 582?   

    Thanks. I will give him a call.
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  5. dav8or added a topic in Rotax and other engines   

    Tips for removing crank gear on 582?
    I need to take my B-box off of one 582 and install it on another. Does anyone have any tips for getting the tapered crank gear off the shaft?
    Thanks, Dan
    • 4 replies
    • 243 views
  6. dav8or added a post in a topic Jabiru mount for Model C?   

    Thanks, I will keep that in mind. For now I plan to make my own.
    Dan
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  7. dav8or added a topic in Avid Flyer General Hangar   

    Jabiru mount for Model C?
    Thinking about converting from 582 to Jabiru. Is there a supplier for the mount or are drawings available to fabricate your own? I am already guessing that I will have to fabricate a new cowling myself. Not sure about fabricating the mount myself from scratch.
    Thanks, Dan
    • 4 replies
    • 696 views
  8. dav8or added a post in a topic 582 overhaul   

    I always open that plug when filling and replace it when oil starts coming out. I also have the tubing connected to the remote reservoir properly so air will purge there while filling (top hose from engine block to the fitting that has the tube running to near the top inside). When testing and running up I have released enough air bubbles to equal more than the volume of the rotary valve block reservoir after 10+ runs. I should have tried to track the amount of oil I have added over that time but I think it has been at least half a pint.
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  9. dav8or added a post in a topic 582 overhaul   

    I read the article again. It seems like it would be tough to do on the Avid since the exhaust is not easily removed. I would also have to find a source for rubber sheet. If I did this how do I determine for sure that the center seals are leaking? Air bubbles in the oil like I get after an engine run up? If it is not the center seals then I have no idea how this would be happening.
    Thanks,
    Dan
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  10. dav8or added a post in a topic 582 overhaul   

    Hi Jim,
    I did check the rotary valve reservoir with positive pressure. Held pressure with minimal leakage overnight. It didn't leak a drop when filled with 2 stroke oil while sitting on the workbench for several weeks and rotating the crankshaft by hand every time I was at the hangar. After that I put it back on the Avid and refilled with oil while bleeding air from the reservoir. I have run the motor numerous times since then and every time I have a loss of oil in the reservoir. Often I would have a large air bubble come from the crankcase reservoir up the hose to the remote tank when I tip the tail up as high as I can reach after shut down. I have been fooling with this since December. Other than a test flight in December when I noticed the rotary valve oil consumption I have not been able to fly my Avid since early 2017 due to a repair and then more repairs after flooding during Hurricane Harvey. I really want to get it back in the air but this engine is driving me crazy.
    Dan
     
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  11. dav8or added a topic in Rotax and other engines   

    582 overhaul
    Looks like I have to have my 582 overhauled. I am pretty sure the center crankshaft seals are leaking when the engine is running. I am not sure who I should send it to and how much it should really cost. Any suggestions?
    Thanks,
    Dan L.
    Avid Model C Speedwing
    • 6 replies
    • 416 views
  12. dav8or added a post in a topic Throttle control for 582   

    Does anyone have or has anyone flown an Avid or Kitfox with a throttle quadrant instead of a push/pull cable?
    Dan
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  13. dav8or added a topic in Avidfoxflyers General Hangar   

    Throttle control for 582
    I would like to simplify the throttle control setup in my Avid with a 582 oil injected. Currently it is setup with a vernier/push pull cable in the panel that connects to the end of a throttle arm type arrangement on top of the engine. From that arm a single pull cable is connected with a cable combiner to the carbs and oil injection. My Avid does not have the cable quadrant setup welded to the fuselage frame in the cockpit under the panel. I would really like to eliminate the throttle arm that is bolted to the top of the engine. The factory type combiner under the panel would be great but for my plane but that would seem to be a major project involving welding in the cockpit area. Does anyone have any other setups or ideas that I might try?
    Sorry, I should have taken pictures but everything is disassembled right now with the engine off and engine mount removed to paint. I did not think of this change until I started to reassemble everything.
    Thanks,
    Dan
    • 2 replies
    • 189 views
  14. dav8or added a post in a topic 582 Crankshaft Rebuild?   

    It was suggested that I pressurize the rotary valve shaft cavity and try to determine which seals are leaking. I did that but no real sign of leaking. It only dropped 1 psi after sitting for a little over 2 hours and part of that loss is probably due to checking the pressure. I also tried turning the crankshaft by hand several times to see if that caused a leak. No difference. I will try pulling a vacuum on the cavity to see if I find any leaks with that. I want to determine what is causing my oil loss before I decide to do a crank rebuild or waste money on anything else that might not be needed. It was not an air bubble. My bleeding process is pretty detailed when filling.
    Dan
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  15. dav8or added a post in a topic 582 Crankshaft Rebuild?   

    Thanks! I didn't realize he did that. I have one more possibility to check before I commit to having crankshaft work done.
    Dan
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