d-m-hague(at)comcast.net
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 Posted: Thu Oct 04, 2007 5:24 pm Post subject: Carb ice & Cuyuna? |
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Had some difficulty this evening which sounds like carb ice but I'd like
any other thoughts.
This is my Ultrastar, with the Cuyuna ULII-02 engine, single Mikuni
carb. Takeoff was fine, full power (6200 rpm), and I stayed in the pattern
and throttled back to 4500 on downwind. After not too long, I thought I
heard some roughness in the engine so I pushed the throttle forward, but
that had no effect other than making the engine bog and sound as if it
would quit. Retart the throttle and it continued to run, and naturally I
landed immediately.
On the ground, the intake manifold was dripping wet.
Started the engine, and again it developed full power. I let it run at
4500 for awhile, then shut down and pulled the air filter, no sign of ice
as far as I could see. Took off again, same thing, though this time after
a bit of playing with the throttle I was able to get full power again.
Temps were in the upper 60's and very humid; as I was flying the fog was
rolling in off the water (the airport is 8 miles from the coast). No data
for my field, but at an airport in the coast 13 miles away the temperature
dropped through the 64° dewpoint while I was airborne.
-Dana
--
--
"I'm a lawyer." "Honest?" "No, the usual kind."
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