Thank you for all who replied
My Overhaul involved,
- Valve Seat Cutting
- Head Facing
- Replacing the gasket
- Re-boring the engine block
- Replacing piston rings
- Replacing pistons
- Replacing main bearing and piston bearings (big end)
- Replacing sump gasket
- Crank shaft grinding
I too feel oil is leaking into the combustion chamber through valve oil seals, because oil color is not turning into black even after 3000kms.
Can I check such leaks by looking at Spark Plugs ?
I do see more smoke in high RPMs (when speeding around 100kmph)