Altmuehltaler
Registered User
Germany
I have a little oil spring under the cowling and can't find where its origin is.
The engine is very clean. Two cylinders sweat a bit at their base. I think oil consumption is OK, too (less than 1qt per 10h).
It looks like the oil comes from the bearings which support the shaft of the carburetor heat valve in the carburetor air box.
On the inside of the air box just behind the hole through which the unused carb heat air exits I always find a puddle of oil in the corners (refer to pictures).
After each flight the lower side of the air box is oily and from there downstream the cowling and belly are greasy.
The top of the air box is dry.
I have no idea where the oil comes from. :???: Is there anybody out there having an idea?
Thank you!
Bjorn
The engine is very clean. Two cylinders sweat a bit at their base. I think oil consumption is OK, too (less than 1qt per 10h).
It looks like the oil comes from the bearings which support the shaft of the carburetor heat valve in the carburetor air box.
On the inside of the air box just behind the hole through which the unused carb heat air exits I always find a puddle of oil in the corners (refer to pictures).
After each flight the lower side of the air box is oily and from there downstream the cowling and belly are greasy.
The top of the air box is dry.
I have no idea where the oil comes from. :???: Is there anybody out there having an idea?
Thank you!
Bjorn