Mechanical Specifications
BlockCamshaft Bearing Bore 1 and 5 Diameter
First Design 59.12 - 59.17 mm (2.327 - 2.329 inch)
Second Design 59.62 - 59.67 mm (2.347 - 2.349 inch)
Camshaft Bearing Bore 2 and 4 Diameter
First Design 58.87 - 58.92 mm (2.317 - 2.319 inch)
Second Design 59.12 - 59.17 mm (2.327 - 2.329 inch)
Camshaft Bearing Bore 3 Diameter
First Design 58.62 - 58.67 mm (2.307 - 2.309 inch)
Second Design 58.62 - 58.67 mm (2.307 - 2.309 inch)
Crankshaft Main Bearing Bore Diameter 69.871 - 69.889 mm (2.75 - 2.751 inch)
Crankshaft Main Bearing Bore Out-of-Round 0.006 mm (0.0002 inch)
Cylinder Bore Diameter 101.618 - 101.636 mm (4.0007 - 4.0017 inch)
Cylinder Bore Taper - Thrust Side 0.018 mm (0.0007 inch)
Connecting Rod
Connecting Rod Bearing Clearance
Production 0.023 - 0.065 mm (0.0009 - 0.0025 inch)
Service 0.023 - 0.076 mm (0.0009 - 0.003 inch)
Connecting Rod Bore Diameter - Bearing End 56.505 - 56.525 mm (2.224 - 2.225 inch)
Connecting Rod Bore Out-of-Round - Bearing End
Production 0.006 mm (0.00023 inch)
Service 0.004 - 0.008 mm (0.00015 - 0.0003 inch)
Connecting Rod Side Clearance 0.11 - 0.51 mm (0.00433 - 0.02 inch)
Crankshaft
Connecting Rod Journal Diameter
Production 53.318 - 53.338 mm (2.0991 - 2.0999 inch)
Service 53.308 mm (2.0987 inch)
Connecting Rod Journal Out-of-Round
Production 0.005 mm (0.0002 inch)
Service 0.01 mm (0.0004 inch)
Connecting Rod Journal Taper - Maximum for 1/2 of Journal
Production 0.005 mm (0.0002 inch)
Service 0.02 mm (0.00078 inch)
Crankshaft End Play 0.04 - 0.2 mm (0.0015 - 0.0078 inch)
Crankshaft Main Bearing Clearance
Production 0.02 - 0.052 mm (0.0008 - 0.0021 inch)
Service 0.02 - 0.065 mm (0.0008 - 0.0025 inch)
Crankshaft Main Journal Diameter
Production 64.992 - 65.008 mm (2.558 - 2.559 inch)
Service 64.992 mm (2.558 inch)
Crankshaft Main Journal Out-of-Round
Production 0.003 mm (0.000118 inch)
Service 0.008 mm (0.0003 inch)
Crankshaft Main Journal Taper
Production 0.01 mm (0.0004 inch)
Service 0.02 mm (0.00078 inch)
Crankshaft Rear Flange Runout 0.05 mm (0.002 inch)
Crankshaft Reluctor Ring Runout - Measured 1.0 mm (0.04 inch) Below Tooth Diameter 0.7 mm (0.028 inch)
Crankshaft Thrust Surface
Production 26.14 - 26.22 mm (1.029 - 1.0315 inch)
Service 26.22 mm (1.0315 inch)
Crankshaft Thrust Surface Runout 0.025 mm (0.001 inch)
Piston Rings
Piston Ring End Gap - First Compression Ring - Measured in Cylinder Bore
Production 0.31 - 0.52 mm (0.012 0.02 inch)
Service 0.31 - 0 59 mm (0.0122 - 0.023 inch)
Piston Ring End Gap - Second Compression Ring - Measured in Cylinder Bore
Production 0.51 - 0.77 mm (0.02 0.03 inch)
Service 0.51 - 0.84 mm (0.02 - 0.033 inch)
Piston Ring End Gap - Oil Control Ring - Measured in Bore
Production Cylinder 0.31 - 0.87 mm (0.0122 - 0.034 inch)
Service 0.31 - 0 94 mm (0.0122 - - 0.037 inch)
Piston Ring to Groove Clearance - First Compression Ring
Production 0.035 - 0.08 mm (0.0014 - 0.0031 inch)
Service 0.035 - 0.08 mm (0.0014 - 0.0031 inch)
Piston Ring to Groove Clearance - Second Compression Ring
Production 0.034 - 0.079 mm (0.0013 - - 0.003 inch)
Service 0.034 - 0.079 mm (0.0013 - - 0.003 inch)
Piston Ring to Groove Clearance - Oil Control Ring
Production 0.012 - 0 2 mm (0.00047 - 0.00078 inch)
Service 0.012 - 0.2 mm (0.00047 - 0.00078 inch)
Pistons and Pins
Piston - Piston Diameter - Measured Over Coating - at Size Point 101.611 - 101.642 mm (4.0 - 4.001 inch)
Piston - Piston to Bore Clearance
Production 0.022 to 0.030 mm (- 0.0009 to 0.0012 inch)
Piston - Piston to Bore Clearance - With Skirt Coating Worn Off
Service 0.024 - 0.08 mm (0.00094 - 0.003 inch)
Pin - First Design Press Fit Pin Fit inch) Connecting Rod Bore 0.02 - 0.043 mm (0.00078 - 0.00169 inch)
Pin - First Design Press Fit Pin Clearance to Piston Pin Bore
Production 0.01 - 0.02 mm (0.0004 - 0.00078 inch)
Service 0.01 - 0 022 mm (0.0004 - 0.00086 inch)
Pin - First Design Press Fit Pin Diameter 23.997 - 24.0 mm (0.9447 - 0 9448 inch)
Pin - Second Design Full Floating Pin Fit in Connecting Rod Bore
Production 0.007 - 0.02 mm (0.00027 - 0.00078 inch)
Service 0.007 - 0.022 mm (0.00027 - 0.00086 inch)
Pin - Second Design Full Floating Pin Clearance to Piston Pin Bore
Production 0.002 - 0.01 mm (0.00008 - 0.0004 inch)
Service 0.002 - 0.015 mm (0.00008 - 0.0006 inch)
Pin - Second Design Full Floating Pin Diameter 23.952 - 23.955 mm (0.943 - 0 943 inch)