db8
Well Known Member
Have always noticed a very slight bit of oil near the #2 cylinder on the cowl since the beginning. I have a little over 100 hrs on the plane and engine (mostly new parts except yellow tagged crank case and cam).
Noticed a little more oil on the bottom lip of the cowl after a flight on Weds. Thought I'd check everything out before the trip to Oshkosh. When I took the cowls off, noticed more on that left side of the inside cowl than normal. Didn't take long to find the thin crack at the cylinder bolt. I wiped it off, did an engine run, and it is weeping from the crack. I can run my finger across it and the nail catches (it's not a paint crack). I think I jinxed myself because after the flight on Weds, I told my hangar mate it sure is nice having a plane that just runs great. I am totally bummed about not flying to Oshkosh and having to swap out the case.
I have decided to buy a new Superior case (am going to do this Monday). I have their crankshaft and cold air sump and am real happy with what I have. They are always great when I chat with them on the phone. My question is: Since I am swapping out the case, should I pay the extra money (not sure, but thinking about $1500 or so) and go with the roller lifter technology? I have heard pros and cons about both. As of now, I plan on converting to the roller lifters from what I have researched. Any thoughts, especially from those who have had both and are experienced in this area? Thanks. Dave
Noticed a little more oil on the bottom lip of the cowl after a flight on Weds. Thought I'd check everything out before the trip to Oshkosh. When I took the cowls off, noticed more on that left side of the inside cowl than normal. Didn't take long to find the thin crack at the cylinder bolt. I wiped it off, did an engine run, and it is weeping from the crack. I can run my finger across it and the nail catches (it's not a paint crack). I think I jinxed myself because after the flight on Weds, I told my hangar mate it sure is nice having a plane that just runs great. I am totally bummed about not flying to Oshkosh and having to swap out the case.
I have decided to buy a new Superior case (am going to do this Monday). I have their crankshaft and cold air sump and am real happy with what I have. They are always great when I chat with them on the phone. My question is: Since I am swapping out the case, should I pay the extra money (not sure, but thinking about $1500 or so) and go with the roller lifter technology? I have heard pros and cons about both. As of now, I plan on converting to the roller lifters from what I have researched. Any thoughts, especially from those who have had both and are experienced in this area? Thanks. Dave
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