my 2wd sapphire has 14% cylinder leakage on no2 cylinder and its got 130 p.s.i on that cylinder and the rest are 140-150p.s.i the spec is 330 bhp greens 3 bar,low comp and long stud 200 block and has coverd 46,000ml is it due for a rebuild

 

possible head gasket problem, do a compression test again on number 2 cylinder only this time pour a little oil in first as if the rings are worn this will create a tmporay seal. if you get more than the "dry" reading then the problem is with the ring or piston if it stays the same the problem is with the head.

 

when i done the cylinder leakage it was blowing threw the std breather now have purchased bailey breather to stop oil going everywhere havent tried since