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About skypics

  • Rank
    Advanced Member
  • Birthday 08/08/1937

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  • Gender Not Telling
  • Interests Guitar, Piano, Ukulele, Harmonica, my two Maltese dogs, Flying backcountry strips in my Avid MK4

skypics's Activity

  1. skypics added a post in a topic Avid high camber wing modifications   

    It was very surprising to see my Avid Model B N234cv in Canada.
    I totaled this aircraft on a particularly challenging backcountry strip in the High Sierras. It was not a ground loop.
    I'd like to offer some corrections to your commentary with the video.
    I agree that the tanks can not take ethanol type auto fuel due to the resin type, but there are many issues with ethanol that prevented me from using is such as phase separation and carb icing at a higher ambient temperature to mention a few.
    The tanks are not 10 gallons, but 14-gallon capacity which was plenty for the Jabiru 2200 I was using. With the engine leaned out I could fly 10 hours straight with the exception of my bladder capacity.
    I sold the wreckage to a person at Whitman Field here in SoCal for a mere $995. That saved me having to scrap it out.
    AVEMCO totaled it due to the frame bending at the steel rods up in the top of the cockpit.
    I replaced it with an Avid MK 4 which has the extra legroom I enjoy. 
    You will notice a lack of legroom and poor clearance between the top of the pedals and the firewall crossbar. This can be an issue when your toe hits the top bar when trying to avoid a ground loop.
    The under chamber was not designed for speed but for a low stall. My friend has an Avid with the flat bottom wings and he cruises a bit faster than me, but also stalls at a higher speed. 
    I am looking forward to seeing your progress on my old friend.
    John M
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  2. skypics added a post in a topic Jabiru 2200 CHT   

    RE: CHTs
    I monitor all EGTs and CHTs.
    EGTs tell what is happening in your engine NOW. CHTs tell how those readings are affecting your engine over time.
    CHTs will tell you how much stress the engine is under.
    RE: Mixture control
    The ability to adjust mixture via Hackman-type device allows you to reduce fuel burn and CHTs at altitude.
    Example: On my Jabiru 2200 powered Avid Flyer at 7500 MSL rich burn is 3.5 GPH at 2850 RPM. After leaning fuel burn is 2.5 GPH. Engine runs cleaner and more efficiently.
    The Bing carb does not lean efficiently but it does lean a bit.
    John M
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  3. skypics added a post in a topic Jabiru Mount   

    Lucky you. You are looking for a mount and I am selling one.
    I am selling my Avid model b, c, and MK4 mount since I am getting a new Jab 2200 and the top two mounts on the new Gen 4 have been moved up 15 mm.
    I believe this mount fits early Kitfoxes. I can provide dimensions if you are interested.
    $195.00 plus shipping from Southern California will take it.
    John M
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  4. skypics added a topic in For Sale and wanted, you got it, I want it   

    Avid to Jabiru Engine Mount for Sale
    Avid B, C, and MK4 engine mount to Jabiru engine for sale.
    Buyer pays to ship from Southern California.
    John M
    • 0 replies
  5. skypics added a post in a topic YAMAHA RX-1 (140 HP) install in Kitfox 5   

    What is the weight of the Yamaha? 
    If too heavy (200+) you will most likely need to balance out with weight on the tail.
    A friend put a Subaru on his MK4 and had to add weight at the tail wheel to prevent it from being too nose heavy.
    John M
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  6. skypics added a post in a topic YAMAHA RX-1 (140 HP) install in Kitfox 5   

    What is the weight of the Yamahopper?
    John M
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  7. skypics added a post in a topic Jabiru Engines   

    I have been notified that my Gen 4 2200 Jabiru engine is almost ready to ship from Aussie Land.
    Decided to buy a new mount that fits the new jab mounts for my Avid Flyer.
    The mount is $895 and the UPS shipping will be another $190. Costs are slowly mounting for this engine change.
    I suspect the top mounts of the mounting plate on the back of the engine were moved 15 mm up to clear the larger jugs.
    I was hoping to get the engine installed and tested for at least 5 hours before flying to the Idaho backcountry strips in mid-June. May not make it.
    So $14,900 for the engine. $895 for the mount and $190 for mount shipping and most likely $200 for truck shipment of the engine. $16,185. OUCH!
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  8. skypics added a topic in Avid Model IV   

    Avid to Jabiru Engine Mount for Sale
    I have ordered a Gen 4 Jabiru 2200 and new engine mount since the regular engine Avid Flyer mount does not fit the new Gen 4 engine. So I am selling the Avid to Jabiru motor mount. $295 will take it. Or you pay to ship and buy it for a mere $199.00.
    Also selling my 2200 with 700 hours STOH. It had a stuck hyd lifter that caused some wear on the #1 exhaust cam lobe. 
    I have replaced the lifter and valve and it has been running strong for 8 hours since. I will fly it until my new engine arrives the end of May.
    Those interested who live near Corona, Ca Airport (KAJO) can see a demo.
    A new cam is around $1K or I understand there are people that can rebuild that lobe.
    Make a reasonable offer.
    John M
    • 0 replies
  9. skypics added a post in a topic 2 stroke oil source   

    When I drove a Rotax 582 I used NEO Synthetic oil produced here in Long Beach California.
    It cost twice as much as Penzoil oil, but at 100:1 ratio I used half as much oil. 
    This gave more power since the mix is more gas and less oil.
    When I took my engine in for a top overhaul at 500-600 hours my mechanic was amazed at how clean the pistons were and became a dealer.
    John M 
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  10. skypics added a post in a topic Jabiru Mount   

    Can't bend it up 15mm and put all that preload stress on it.
    I have ordered the new mount.
    There are two possible reasons that they raised the top mounts.
    A) They don't need to stock two different mounts for the 3300 and 2200. 
    B) The new cylinders are larger and crowd the top mounts.
    John M
    • 0
  11. skypics added a post in a topic Jabiru to Avid Flyer Engine Mount.   

    That's funny!!!
    John M
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  12. skypics added a post in a topic Jabiru to Avid Flyer Engine Mount.   

    The local welder is a bit higher than I would have expected. I would save about $300, but I have decided to hang my new engine on a new mount.
    John M
    • 0
  13. skypics added a topic in 4-strokes   

    Jabiru 2200 Gen 2 s/n 3236 for sale
    I had some issues with this engine and found that the #4 hyd lifter was sticking and caused the bottom of the lifter to wear along with the #1 cam lobe.
    I replaced the lifter and exhaust valve and now the engine is putting out more power than it has for the last 200 hours.
    A new cam is $1000 from Jabiru Tennessee. I have been told there are shops that can repair cam lobes.
    I have ordered a new Gen 4 2200 and motor mount. 
    My current engine is mounted on an Avid MK4. It is turning a 66" Whirlwind 2 blade prop. Climb ar 2950 RPM is 1200 FPM. 
    I will fly this engine until I receive the new engine 3-4 week from this date.
    In the meantime, anyone interested in this engine can see it demonstrated at Corona Airport (KAO).
    I'll consider all reasonable offers. Jabiru will give me $2K for the engine as parts.
    John M
    • 0 replies
  14. skypics added a topic in Avid Model IV   

    Jab 2200 for sale
    Since I replaced the hyd lifter and exhaust valve on my 2200 Gen2 s/n 3236, it is flying strong again and I will fly it till my new Gen 4 arrives from Tennessee.
    This engine has a slightly worn lobe at the #4 exhaust position.
    I will offer my engine for sale in three weeks. In the meantime, anyone nearby who may be interested can come to Corona Airport (KAJO) and see it perform.
    A new cam is $1200 from Jabiru. So I'll consider $4900 for the engine and mount that fits the Avid model b, c and MK4. 
    John M
    • 0 replies
  15. skypics added a post in a topic Jabiru to Avid Flyer Engine Mount.   

    A new engine mount to fit the Gen 4 2200 will cost $895...gulp. A local welder will modify my current mount to fit the Gen 4 for $600 max. Not much difference so I think I'll go for the new one.
    john M
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