Guys,
I have been fighting higher then desired oil temps on my IO540 equipped RV10. I tried to follow Tim Olson's baffle tighten up guidance and am running relatively good CHTs. In a 115kt climb my CHTs are hitting 380ish with #6, always the highest pushing 390-400 if I get a bit slow.
What I am seeing on my Advance Flight Engine Monitoring system is the Oil temp will climb up to 190-205F in the climb. But at cruise I tend to stabilize at 200-205F, but then will quickly roll down to 180-185F stay there for about 15-30 seconds then start to climb back to 200F. There doesn't seem to be a constant cycle to this temp change, but I notice it 3-5 times in a one hour flight.
I rebuilt the engine and did not replace the vertatherm and am thinking that replacing it is the next step. I did try a quick V/T check by flying the airplane until oil temp hit 200F then landed and did the hand temp check of the oil cooler and it was hot to the touch.
Before purchasing a $300 V/T thought I would ask if anyone has seen similar symptoms.
Mike Chase
RV10 50+ hours
I have been fighting higher then desired oil temps on my IO540 equipped RV10. I tried to follow Tim Olson's baffle tighten up guidance and am running relatively good CHTs. In a 115kt climb my CHTs are hitting 380ish with #6, always the highest pushing 390-400 if I get a bit slow.
What I am seeing on my Advance Flight Engine Monitoring system is the Oil temp will climb up to 190-205F in the climb. But at cruise I tend to stabilize at 200-205F, but then will quickly roll down to 180-185F stay there for about 15-30 seconds then start to climb back to 200F. There doesn't seem to be a constant cycle to this temp change, but I notice it 3-5 times in a one hour flight.
I rebuilt the engine and did not replace the vertatherm and am thinking that replacing it is the next step. I did try a quick V/T check by flying the airplane until oil temp hit 200F then landed and did the hand temp check of the oil cooler and it was hot to the touch.
Before purchasing a $300 V/T thought I would ask if anyone has seen similar symptoms.
Mike Chase
RV10 50+ hours