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HelicopterMain Discussion › Engine Leaning out on Header Tank
09-05-2003 04:15 AM  14 years agoPost 1
greg

rrKey Veteran

Yorkville, IL

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I have a Raptor 50 V2 with an OS .50 I just ran it for the first time today and it starts leaning out when I get into the header tank. All lines seem ok. Any ideas.

btw.... I can't believe the power this engine has.

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09-05-2003 04:24 AM  14 years agoPost 2
JimmyY2KWS6

rrApprentice

Miami, Florida

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Mine just started doing that last weekend. I replaced all my fuel lines and it still does it I am going to try to figure it out this weekend. I will keep you posted.

Jimmy

Fury Tempest 3D Fury Expert 60

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09-05-2003 04:37 AM  14 years agoPost 3
11290

rrApprentice

Evansville, IN and Orlando, FL

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Mine richens up on the header tank.

Any thoughts???

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09-05-2003 04:37 AM  14 years agoPost 4
Twobeers

rrKey Veteran

Toronto, Canada

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Yes, I have an idea of whats up with that. Its absolutely normal for the engine to go lean. Kinda like a very audible warning if your paying attention to your heli when doing those kind of wild **** things we like doing.

I lost my infamous tag line.

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09-05-2003 05:13 AM  14 years agoPost 5
Spencer K

rrVeteran

Phoenix, Az

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i know most all engines get leaner as the tanks runs down, (im curious) i will find the exact reason tonite, and let you know.

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09-05-2003 10:27 AM  14 years agoPost 6
Thumbpilot

rrApprentice

Navan, Ireland

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Check the height of the header in relation to the carb. Mine is level with the carb and I don't get a difference in mixture when the main tank empties.

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09-05-2003 12:19 PM  14 years agoPost 7
GMPheli

rrElite Veteran

W. Bridgewater, MA USA

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If your header is higher than the main tank, then it will richen, lower and it will lean

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09-05-2003 12:47 PM  14 years agoPost 8
Joe Ubaldo

rrVeteran

Grand Rapids, MI USA

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Guys,

My helis used to go lean near the bottom of the main tank and when going onto the header tank. I switched to the UNIFLOW plumbing setup and the leaning problem is a thing of the past for me.

Do a search for UNIFLOW on RR if you want to learn more.

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09-05-2003 01:43 PM  14 years agoPost 9
jasonmolinari

rrApprentice

Atlanta, GA

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My shuttle/OS32 also leans out when i get into the header tanks. The outlet of the tank is pretty much in line with the carb...

jason

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09-05-2003 02:47 PM  14 years agoPost 10
Daniel Santana

rrApprentice

Tampa, Fl

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oth MY freya's were going lean... even when the main tank was full. Removed uniflow and bam... nice..

Now it goes lean about 2/3 way through the header tank. I too like the difference to let me know to land.

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09-06-2003 06:53 AM  14 years agoPost 11
Freya

rrApprentice

Seattle, Washington

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I agree with Twobeers. It is normal. That is why we run a header tank to keep the main from leaning out.

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HelicopterMain Discussion › Engine Leaning out on Header Tank
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