Piston Ring, Engine
Piston RingSide clearance
Top
0.045 - 0.080 mm (0.0018 - 0.0031 in.)
0.11 mm (0.0043 in.)
2nd
0.030 - 0.070 mm (0.0012 - 0.0028 in.)
0.1 mm (0.004 in.)
Oil ring 0.065 - 0.135 mm (0.0026 - 0.0053 in.)
End gap
Top
0.23 - 0.33 mm (0.0091 - 0.0130 in.)
0.54 mm (0.0213 in.)
2nd
0.33 - 0.48 mm (0.0130 - 0.0189 in.)
0.80 mm (0.0315 in.)
Oil (rail ring)
0.20 - 0.50 mm (0.0079 - 0.0197 in.)
0.95 mm (0.0374 in.)