The Wizzard
Well Known Member
I have had 3 small overspeeds in the last 10 hours of operation Two of them were on takeoff (with a very warmed up engine, not the first flight of the day)and one of them was bringing the prop from low rpm to high rpm. I believe the overspeed was about 100 RPM (2700-2800) with 2700 RPM being the limit. In all three cases the problem corrected itself before I could intervene. In other words the prop govenor caught it. The question is why did it go beyond the limit in the first place?
Facts.
!. MT Prog Gov with 675 hours since new
2. Oil Pressure 72 psi
3 Oil Temperature above 140 F
4. Everthing else appears normal
5.Whirliwind RV-200 Prop
6. Never happened since new
7. IO-375-M1B Engine
8. G3X with accessory case tach sensor
Im guessing the prop gov may need overhauling. If so can you recommend a overhaul facility. One onther thought, there is a screen on the gasket between the gov and accessory case. If I pull the gov off and find it obstructed might that be the problem? I can't imagine that being the issue since the oil has been changed every 30 hours on this engine nice new but I thought I would throw it out there.
Facts.
!. MT Prog Gov with 675 hours since new
2. Oil Pressure 72 psi
3 Oil Temperature above 140 F
4. Everthing else appears normal
5.Whirliwind RV-200 Prop
6. Never happened since new
7. IO-375-M1B Engine
8. G3X with accessory case tach sensor
Im guessing the prop gov may need overhauling. If so can you recommend a overhaul facility. One onther thought, there is a screen on the gasket between the gov and accessory case. If I pull the gov off and find it obstructed might that be the problem? I can't imagine that being the issue since the oil has been changed every 30 hours on this engine nice new but I thought I would throw it out there.
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