OS-140 Idle problem
05-28-2004 | 07:59 PM
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From: Kiriat-Ono, ISRAEL
OS-140 Idle problem
I have an OS-140.
It used to run OK. Now I can't get the idle less than 2,500-2,600 RPM.
It has 190 flights. I use 15% nitro, 15.5*12 4 blade prop, OS tuned pipe.
The bearings anged were changed befor 90 flights.
I could not detect any bubbles in the fuel lines.
The max RPM is about 7,800 (as before).
What could be the problem?
Thanks
Eli
It used to run OK. Now I can't get the idle less than 2,500-2,600 RPM.
It has 190 flights. I use 15% nitro, 15.5*12 4 blade prop, OS tuned pipe.
The bearings anged were changed befor 90 flights.
I could not detect any bubbles in the fuel lines.
The max RPM is about 7,800 (as before).
What could be the problem?
Thanks
Eli
