Piston, Engine

PISTONS

Weight (Less Pin) 417 - 429 grams (14.7 - 15.1 ounces)
Piston Pin Bore (Centerline to Piston Top) 40.61 - 40.72 mm (1.599 - 1.603 in.)
Piston-to-Bore Clearance 0.018 - 0.038 mm (0.0008 - 0.0015 in.)
Ring Gap Clearance
Top Compression Ring 0.229 - 0.610 mm (0.0090 - 0.0240 in.)
2nd Compression Ring 0.483 - 0.965 mm (0.0190 - 0.0380 in.)
Oil Control Steel Rails 0.254 - 1.500 mm (0.010 - 0.060 in.)
Ring Side Clearance
Compression Rings 0.042 - 0.084 mm (0.0017 - 0.0033 in.)
Oil Control Rings 0.06 - 0.21 mm (0.0024 - 0.0083 in.)
Piston Ring Groove Height
Compression Rings 1.530 - 1.555 mm (0.0602 - 0.0612 in.)
Oil Control Ring 4.035 - 4.060 mm (0.1589 - 0.1598 in.)
Piston Ring Groove Diameter
No. 1 Compression Ring 88.39 - 88.65 mm (3.48 - 3.49 in.)
No. 2 Compression Ring 87.63 - 87.88 mm (3.45 - 3.46 in.)
Oil Control Ring 89.66 - 89.92 mm (3.53 - 3.54 in.)
Piston Pin Bore Diameter 23.650 - 23.658 mm (0.9312 - 0.9315 in.)
Piston Pin Diameter 23.637 - 23.640 mm (0.9306 - 0.9307 in.)
Piston-to-Pin Clearance 0.0102 - 0.0208 mm (0.0005 - 0.0009 in.)
Piston-to-Pin Connecting Rod (Press Fit) 8.9 kN (2000 lbs.)