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AirEupora
Joined: 01 Nov 2009
Posts: 186
Location: Dixon, CA
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 Posted: Fri Apr 30, 2010 6:38 am Post subject: For those of us with a Jabiru engine |
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The current FAA Nuts and Bolts Newsletter has an interesting article about
corrosion in a Bing carb on a Jabiru 3300 experimental aircraft (possibly a
Sonex) leading to an accident.
https://www.faasafety.gov/files/notices/2010/Apr/10-01%5B1%5D.pdf
(see p. 5). There are some good thoughts Re conditional inspections on Bing
carbs.
I cut a pasted this from the Jabiru engine web page.
Rick Stockton
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Fergus Kyle
Joined: 03 Jun 2007
Posts: 291
Location: Burlington ON Canada
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| Posted: Sat May 01, 2010 5:26 am Post subject: For those of us with a Jabiru engine |
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Cheers,
I read with interest Rick Stockton’s suggestion regarding Bing carbs on the Jabiru. I’m not near enough to confirm it’s the same principal as those on my 914. However the system seems to parallel the carb on a smallboat engine called the Seagull which I wrestled with for some years.
The principle is a ‘slide’ with a needle valve under it which suction attracts upward, thus exposing more area for fuel to travel in to the induction path. It’s (at)#$%^&* hard to measure a correct setting for this arrangement, but once found seemed to me to be impervious to any other circumstance but one – debris. In my case it was tiny green bits of waterborne material which slowly jammed the slide to full power position. Thus full bore she ran well, retard the throttle and she coughed and quit, flooded.
Is this the symptom my preceders are experiencing because it seems similar to what the FAA was saying about the Bing. My solution was to quickly disassemble the carb and clean out the grunge at regular intervals. Without that, we’d regularly have to hail a passing gin palace to haul us back to port. I regularly was reminded what I should have done – I’m married.
Cheers and comments welcomed,
Ferg
Europa A064 90%done, 30% to go [quote][b]
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