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HelicopterMain Discussion › Engine Quits??
08-02-2011 12:58 AM  6 years agoPost 1
DSW

rrApprentice

Oviedo, Florida 32765

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Suggestion Please.
I've got a Pantera 50 with Hyper 50, Pro-Muffler, OS#8 plug, Cool Power 30%. Last two sessions as tank gets lower, the engine just quits. 1st I thoought may be running hot, so I richened is up a few clicks, quit again. I then thought plug going bad, changed it out, same thing. I'm thinking next to change fuel lines.
Any other thoughts?

Thanks,

Dave

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08-02-2011 01:02 AM  6 years agoPost 2
Dood

rrProfessor

Wescanson

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maybe your clunk line has a hole in it and it starts sucking air as soon as your fuel gets low.

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08-02-2011 01:53 AM  6 years agoPost 3
ShuRugal

rrKey Veteran

Killeen, TX

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+1 on check the clunk line. sounds like a sudden lean-out condition to me.

AMA 700159

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08-02-2011 02:02 AM  6 years agoPost 4
Steff Giguere

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St-Eustache, Quebec, Canada

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+2 on check clunk line.

Team Synergy, Rail blades, Team Scorpion, V-Team

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08-02-2011 02:19 AM  6 years agoPost 5
DSW

rrApprentice

Oviedo, Florida 32765

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Will do, the only thing that makes me doubt the clunk line is that the hearder tank was full when it quit.

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08-02-2011 02:45 AM  6 years agoPost 6
DoubleBass

rrNovice

USA

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How is she at the beginning of the flight? Rich? If not, try a couple more clicks. Leaning, glow plug and fuel condition are the usual suspects for engine quitting.

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08-02-2011 04:01 AM  6 years agoPost 7
jgunpilot

rrKey Veteran

Pollock, LA

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I'd take this opportunity to replace all your fuel lines, and clean or replace the filter.

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08-02-2011 04:05 AM  6 years agoPost 8
ShuRugal

rrKey Veteran

Killeen, TX

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the only thing that makes me doubt the clunk line is that the hearder tank was full when it quit
is the muffler providing good pressure to the tank? I have managed to fly a few times with the pressure line not connected, and engine leans out horribly as the tank drops, even though it is fine with a full tank.

AMA 700159

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08-02-2011 04:15 AM  6 years agoPost 9
max232

rrVeteran

Pensacola

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Not trying to hijack your thread but am having an issue with my heli leaning out at times during the flight(seems only inverted maneuvers mostly inverted funnels).

and i have a header tank as well(700n w/ os91)and i have replaced all the fuel line

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08-02-2011 05:52 AM  6 years agoPost 10
McKrackin

rrProfessor

Lucasville,Ohio

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is the muffler providing good pressure to the tank? I have managed to fly a few times with the pressure line not connected,
Burnt a whole in my piston in 20 seconds over that.lol...

I literally never use the word literally right.

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08-02-2011 06:19 AM  6 years agoPost 11
BladeStrikes

rrElite Veteran

Shelby TWP,Mi

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DSW Engine Quits??

Suggestion Please.
I've got a Pantera 50 with Hyper 50, Pro-Muffler, OS#8 plug, Cool Power 30%. Last two sessions as tank gets lower, the engine just quits. 1st I thoought may be running hot, so I richened is up a few clicks, quit again. I then thought plug going bad, changed it out, same thing. I'm thinking next to change fuel lines.
Any other thoughts?

Thanks,

Dave
Dave,
Sound's like you have some time on the motor.Take the pipe off and look at the ring.If it's shiny,that's your problem and it need's replaced.When the ring is warn out and the motor warm's up good,it looses compression which slows fuel pressure and the motor die's .The motor will die at the end of the tank and get worse as you keep flying it.Will get to where it die's around 1/2 a tank.The ring should have a close to black color if it's good but shiny is bad and the motor will act like your saying.If it's good,check the fuel line's along with the clunk.Take the fuel line off the carb and pipe.Plug one side and blow through the other to check for leak's.You could have a crack in the clunk line right above the clunk from it flopping around all the time and the only way to check that is to take it out of the tank.I would check the ring first,I seen that happen many time's and taking the pipe off doesn't take long..

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