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Problem with carb on MVVS 58

Old 03-12-2008, 06:45 PM
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leo3d
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Default Problem with carb on MVVS 58

Hi my problem is at the first start of a day.
The engine doesn't start because too much fuel entries in the cylinder. But I've tryed even with out choke.
I dont know what to do because after hours of work the engine starts and works prefectly with an awsome performance.
I know the setting in High and Low valve are ok because the engine works ok but only when it starts.
The engine is brand new I've made only about 15 flights.
Please help me.
Old 03-13-2008, 04:14 AM
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BaldEagel
 
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Default RE: Problem with carb on MVVS 58

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Old 03-13-2008, 04:22 AM
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DarZeelon
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Default RE: Problem with carb on MVVS 58

Leo,


Is it possible the fuel needle (position regulated by the metering diaphragm) is sticking open, i.e. not fully closing because of a piece of dirt, or a burr/regularity? Or maybe the rubber seal at the end of the needle is damaged, or missing?

If so, the low end could become so rich that the engine becomes flooded.
Old 03-14-2008, 12:15 PM
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leo3d
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Default RE: Problem with carb on MVVS 58

Hi, thanks for your answer, but what i must do? take out the carb?

Leo
www.ExtremeAerobatics.com.ar
Old 03-14-2008, 12:30 PM
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pe reivers
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Default RE: Problem with carb on MVVS 58

yes, you will have to take the carb apart.
Look[link=http://prme.nl/forum/viewtopic.php?t=10]here[/link] for manuals etc.
Old 03-20-2008, 01:38 PM
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leo3d
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Default RE: Problem with carb on MVVS 58

Hi everyone i've worked on the carb and foud a lot of dust and particles inside the carb, in a little filter inside it. I've removed all dust and the engine rus great now.
Yu can see some pics here... http://www.extremeaerobatics.com.ar/...php?f=13&t=529
Thanks a lot for the help.
Bye.

Leo
www.ExtremeAerobatics.com.ar
Old 03-20-2008, 02:32 PM
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pe reivers
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Default RE: Problem with carb on MVVS 58

Thanks for all the pictures you posted
When you see this kind of contamination in the carb filter, check out your complete fueling system and ask yourself: "how dit the dirt get in there??"
use a felt clunk filter
do not use a fueling "T" in the fuel draw line, but use a dedicated fill line.

Your problems will then be over, forever!.

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