Mechanical Specifications

Block
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 96.0 - 96.018 mm (3.779 - 3.78 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 0.004 - 0.008 mm (0.00015 - 0.0003 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 Length
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 0.23 - 0.44 mm (0.009 - 0.017 inch)
Service 0.23 - 0.5 mm (0.009 - 0.0196 inch)
Piston Ring End Gap - Second Compression Ring - Measured in Cylinder Bore
Production 0.44 - 0.7 mm (0.017 - 0.027 inch)
Service 0.44 - 0.76 mm (0.0173 - 0.03 inch)
Piston Ring End Gap - Oil Control Ring - Measured in Cylinder Bore
Production 0.18 - 0.75 mm (0.007 - 0.029 inch)
Service 0.18 - 0.81 mm (0.007 - 0.032 inch)
Piston Ring to Groove Clearance - First Compression Ring
Production 0.04 - 0.85 mm (0.00157 - 0.00335 inch)
Service 0.04 - 0.085 mm (0.00157 - 0.00335 inch)
Piston Ring to Groove Clearance - Second Compression Ring
Production 0.04 - 0.78 mm (0.0157 - 0.0031 inch)
Service 0.04 - 0.78 mm (0.00157 - - 0.0031 inch)
Piston Ring to Groove Clearance - Oil Control Ring
Production 0.012 - 0.2 mm (0.0005 - 0.0078 inch)
Service 0.012 - 0.2 mm (0.0005 - 0.0078 inch)
Pistons and Pins
Piston - Piston Diameter - Measured Over Skirt Coating 96.002 - 96.036 mm (3.779 - 3.78 inch)
Piston - Piston to Bore Clearance
Production 0.036 to 0.016 mm (0.0014 to 0.0006 inch)
Service Limit with Skirt Coating Worn Off 0.071 mm (0.0028 inch)
Pin - Piston Pin Fit in Connecting Rod Bore 0.02 - 0.013 mm interference (0.00078 - 0.00169 inch) interference
Pin - Piston Pin Clearance to Piston Pin Bore
Production 0.007 - 0.02 mm (0.00027 - 0.00078 inch)
Service 0.007 - - 0.321 mm (0.00027 - 0.00082 inch)
Pin - Piston Pin Diameter 23.997 - 74.0 mm (0.9447 - 0.9448 inch)