Piston Ring, Engine
PistonRing groove width
No. 1 ring groove 1.23 - 1.25 mm (0.0484 - 0.0492 inch)
Limit 1.26 mm (0.0496 inch)
No. 2 ring groove 1.22 - 1.24 mm (0.0480 - 0.0488 inch)
Limit 1.26 mm (0.0496 inch)
Oil ring groove 2.01 - 2.03 mm (0.0791 - 0.0799 inch)
Limit 2.05 mm (0.0807 inch)
Piston ring
Side clearance
No. 1 ring 0.04 - 0.078 mm (0.0016 - 0.0031 inch)
Limit 0.1 mm (0.004 inch)
No. 2 ring 0.03 - 0.07 mm (0.0012 - 0.0027 inch)
Limit 0.1 mm (0.004 inch)
Oil ring 0.06 - 0.15 mm (0.0024 - 0.0059 inch)
Limit 0.2 mm (0.008 inch)
End gap
No. 1 ring 0.17 - 0.32 mm (0.0067 - 0.0126 inch)
Limit 0.6 mm (0.0236 inch)
No. 2 ring 0.32 - 0.47 mm (0.0126 - 0.0185 inch)
Limit 0.7 mm (0.0275 inch)
Oil ring 0.20 - 0.70 mm (0.0078 - 0.0275 inch)
Limit 0.8 mm (0.0315 inch)