Piston Ring, Engine

Piston ring width compression (top) 1.47-1.49 mm
Ring width compression (bottom) 1.46-1.49 mm
Ring width oil ring service limit (Side clearance) 0.15 mm MAX.
Ring gap compression (top) 0.25-0.28 mm
Ring gap compression (bottom) 0.25-0.28 mm
Ring gap oil ring (steel rail) 0.04-1.68 mm
Side clearance 1st ring 0.04-0.08 mm
Side clearance 2nd ring 0.04-0.09 mm
Ring groove width compression (top) 1.53-1.55 mm
Ring groove width compression (bottom) 1.53-1.55 mm
Ring groove width oil 4.008-4.032 mm
Ring groove width compression ring (top) to ring groove clearance 0.04-0.08 mm
Ring groove width compression ring (bottom) to ring groove clearance 0.06-0.09 mm