General Specifications

GENERAL SPECIFICATIONS

Cylinder Block
Cylinder bore diameter 100.4 mm (3.953 inch)
bore maximum taper 0.025 mm (0.001 inch)
bore maximum out of round 0.025 mm (0.001 inch)
Main bearing bore inside 60.620 60.634 mm diameter (2.387 2.387 inch)
Head gasket surface flatness 0.1 mm (0.004 inch) overall

Crankshaft
Main bearing journal diameter 56.980 - 57.0 mm (2.243 - 2.244 inch)
Main bearing journal maximum taper 0.008 mm (0.0003 inch)
Main bearing journal maximum out of round 0.008 mm (0.0003 inch)
Main bearing journal to cylinder block clearance 0.008 0.062 mm (0.0003 0.0024 inch)
Connecting rod journal diameter 53.98 - 54.0 mm (2.125 - 2.126 inch)
Connecting rod journal maximum taper 0.008 mm (0.0003 inch)
Connecting rod journal maximum out of round 0.008 mm (0.0003 inch)
Crankshaft maximum end play 0.05 - 0.32 mm (0.002 - 0.0126 inch)

Main Bearings
Clearance to crankshaft 0.021 - 0.039 mm (0.0008 - 0.0015 inch)
Clearance to crankshaft allowable 0.013 - 0.048 mm (0.0005 - 0.002 inch)
Bearing wall thickness 1.8 - 1.806 mm (0.0709 - 0.0711 inch)

Piston
diameter coded standard 100.380 - 100.400 mm (3.952 - 3.9528 inch)
diameter coded 0.5 100.880 - 100.900 mm (3.971 - 3.972 inch)
diameter coded 1.0 101.350 - 101.370 mm (3.990 - 3.991 inch)
Piston to cylinder bore clearance 0.030 - 0.050 mm (0.0012 - 0.002 inch)

Piston ring
end gap top 0.200 - 0.450 mm (0.008 - 0.018 inch)
end gap 0.40 0.60 mm bottom (0.016 0.024 inch)
groove width * top 1.23 - 1.25 mm (0.0484 - 0.0492 inch)
groove width bottom 1.52 - 1.54 mm (0.0598 - 0.0606 inch)
groove width * oil ring 3.01 - 3.03 mm (0.1185 - 0.1193 inch)
width top 1.175 - 1.190 mm (0.0463 - 0.0469 inch)
width bottom 1.475 - 1.490 mm (0.0581 - 0.0587 inch)
Piston ring to groove clearance top 0.040 - 0.075 mm (0.0016 - 0.0030 inch)
Piston ring to groove clearance bottom 0.030 0.065 mm (0.0012 - 0.0026 inch)

Piston pin
bore diameter 23.958 23.976 mm (0.943 - 0.944 inch)
diameter (red) 23.994 - 23.997 mm (0.9446 - 0.9448 inch)
diameter (blue) 23.997 - 24.000 mm (0.9448 - 0.9449 inch)
length 72.0 - 72.8 mm (2.835 - 2.866 inch)
Piston pin to piston fit 0.01 - 0.016 mm (0.0004 - 0.0006 inch)
Piston pin to connecting rod clearance 0.01 0.016 mm (0.0004 - 0.0006 inch)

Connecting rod
pin bore diameter 23.958 - 23.976 mm (0.943 - 0.944 inch)
length (center to center) 145.965 - 146.035 mm (5.747 - 5.749 inch)
maximum allowed bend mm (0.0005 inch) per 25.4 mm (1.000 inch)
maximum per allowed twist 0.038 mm (0.0015 inch) 25.4 mm (1.000 inch)
bearing diameter bore 56.82 mm - 56.84 mm (2.237 inch - 2.238 inch)
bearing to crankshaft 0.008 - 0.061 mm (0.0003 - 0.0024 inch)
clearance Connecting rod side clearance 0.092 0.268 mm (0.0036 - 0.0106 inch)