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09-05-2003 06:13 AM  14 years agoPost 1
helitroll

rrVeteran

Southlake, TX

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I am having a new problem and have run out of ideas. The engine runs great until I engage the GV-1 on my Fury Expert with OS-61. The smoke increases and I lose significant power. It bogs like it is rich. 30% fuel with 22% oil, Gear ratio 9.3, Sensor reads 97%, rpm 1650-1850 can be dialed from Tx and rpm chosen does not change the result. Throttle servo JR 8311. I could see foaming causing it to go lean but why rich. I have reset the limits and will try Sat. Anyone have a clue?

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09-05-2003 06:56 AM  14 years agoPost 2
Harbinger

rrVeteran

alberta

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I see your problem

Your using an 8311 on the throttle. That just will not do that will cause the about problem. The easy fix is take that servo out box it up and send it to me. I have one that will work better for your application

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09-05-2003 01:53 PM  14 years agoPost 3
Madcow

rrApprentice

Townsville, QLD, Australia

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Well a GV-1 can't in actual fact *cause* a rich condition. Is it possible you're using conditional switching and you've got too much pitch in the flight modes where GV-1 is engaged?

Or perhaps you're not running as high an engine speed when GV-1 is not engaged and your high end needle is simply too rich?

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09-07-2003 06:15 AM  14 years agoPost 4
helitroll

rrVeteran

Southlake, TX

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It's better

We worked on the heli today with a tach. The problem was a small hole in the fuel line at the motor. The governor was trying to maintain a higher RPM and was going full throttle which caused it to go lean. The heat was causing the oil in the fuel to look like it was rich. It looked rich but was hot. That was the first clue. I replaced the fuel line and it is now 95% better. I still need a little tweaking.

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