Piston Ring, Engine

PISTON RINGS

Ring Groove Diameter
No.1 Ring Groove Diameter 83.37 - 83.13 mm (3.282 - 2.273 in.)
No.2 Ring Groove Diameter 82.833 - 83.033 mm (3.261 - 3.310 in.)
No.3 Ring Groove Diameter 83.88 - 84.08 mm (3.302 - 3.310 in.)

Ring Gap
Top Compression Ring Gap 0.20 - 0.36 mm (0.0079 - 0.0142 in.)
Second Compression Ring Gap 0.37 - 0.63 mm (0.0146 - 0.0249 in.)
Oil Control (steel Rails) Ring Gap 0.25 - 0.76 mm (0.0099 - 0.30 in.)
Top Compression Ring Side Clearance 0.051 - 0.094 mm (0.0020 - 0.0037 in.)

Side Clearance
Second Compression Ring Side Clearance 0.040 - 0.080 mm (0.0016 - 0.0031 in.)
Oil Ring (Steel Ring) Ring Side Clearance 0.019 - 0.229 mm (0.0007 - 0.0091 in.)