Piston, Engine

Piston Ring End Gap
First Compression Ring 0.15-0.36 mm (0.006-0.014 inch)
Second Compression Ring 0.48-0.74 mm (0.0188-0.0291 inch)
Oil Control Ring 0.25-0.77 mm (0.0098-0.0303 inch)
Piston Ring to Groove Clearance
First Compression Ring 0.04-0.086 mm (0.002-0.0033 inch)
Second Compression Ring 0.04-0.08 mm (0.002-0.0031 inch)
Oil Control Ring 0.07-0.095 mm (0.0028-0.0037 inch)
Piston Ring Thickness
First Compression Ring 1.164-1.190 mm (0.046-0.047 inch)
Second Compression Ring 1.460-1.490 mm (0.0574-0.0586 inch)
Oil Control Ring - Maximum 2.960 mm (0.116 inch)
Piston
Piston Diameter
production - cylinder 1-4 91.985-92.003 mm (3.621-3.622 inch)
service limit - cylinder 1-4 91.945 mm (3.619 inch)
Piston Diameter
production - cylinder 5-6 91.99-92.028 mm (3.621-3.623 inch)
service limit - cylinder 5-6 91.945 mm (3.619 inch)
Piston Pin Bore Diameter 23.005-23.010 mm (0.9057-0.9059 inch)
Piston Ring Groove Width - First 1.23-1.25 mm (0.048-0.049 inch)
Piston Ring Groove Width - Second 1.53-1.55 mm (0.060-0.061 inch)
Piston Ring Groove Width - Oil Control 3.03-3.055 mm (0.119-0.120 inch)
Piston to Bore Clearance
production - 1-4 0.17-0.053 mm (0.0006-0.0020 inch)
service limit- 1-4 0.093 mm (0.0036 inch)
production - 5-6 -0.008-0.048 mm (-0.0003-0.0018 inch)
service limit- 5-6 0.093 mm (0.0036 inch)
Pin
Piston Pin Clearance to Connecting Rod Bore
Press Fit -0.047 to -0.019 mm (-0.0019 to -0.0007 inch)
Piston Pin Clearance to Piston Pin Bore 0.008-0.016 mm (0.00031-0.00063 inch)
Piston Pin Diameter 22.994-22.997 mm (0.9053-0.9054 inch)