Piston Ring, Engine

PISTON RING
Standard
Top
Side clearance 0.040 - 0.080 mm (0.0016 - 0.0031 in.)
Limit 0.11 mm (0.0043 in.)
2nd
Side clearance 0.030 - 0.070 mm (0.0012 - 0.0028 in.)
Limit 0.1 mm (0.004 in.)
Oil ring 0.015 - 0.050 mm (0.0006 - 0.0020 in.)
End gap
Top
Side clearance 0.23 - 0.33 mm (0.0091 - 0.0130 in.)
Limit 0.54 mm (0.0213 in.)
2nd
Side clearance 0.33 - 0.48 mm (0.0130 - 0.0189 in.)
Limit 0.80 mm (0.0315 in.)
Oil (rail ring)
Side clearance 0.20 - 0.60 mm (0.0079 - 0.0236 in.)
Limit 0.95 mm (0.0374 in.)