Piston Ring, Engine

RING GROOVE CLEARANCE
Ring groove clearance:
No. 1: 0.03 to 0.07 mm (0.0012 to 0.0028 in.)
No. 2: 0.02 to 0.06 mm (0.0008 to 0.0024 in.)


PISTON RING END GAP
Standard end gap:
No. 1: 0.25 to 0.35 mm (0.0098 to 0.0138 in.)
No. 2: 0.35 to 0.50 mm (0.0138 to 0.0197 in.)
Oil (Side Rail): 0.10 to 0.35 mm (0.0039 to 0.0138 in.)

Maximum end gap:
No. 1: 0.91 mm (0.0358 in.)
No. 2: 1.06 mm (0.0417 in.)
Oil (Side Rail): 0.82 mm (0.323 in.)