System Specifications

Cylinder block
Cylinder bore diameter 94.999 - 95.001 mm (3.7401 - 3.7402 inch)
Cylinder bore maximum taper 0.076 mm (0.003 inch)
Cylinder bore maximum out of round 0.05 mm (0.002 inch)
Main bearing bore inside diameter 85.99 - 86.01 mm (3.3854 - 3.3862 inch)
Camshaft bearing bore inside diameter 65.98 - 66.02 mm (2.597 - 2.599 inch)
Head gasket surface flatness Per 50 mm (2 inch): 0.025 mm (0.001 inch)

Crankshaft
Main bearing journal diameter - Standard size 80.9873 - 81.0127 mm (3.188 - 3.150 inch)
Main bearing journal diameter - 0.254 mm (0.010 inch) undersize 80.7333 - 80.7587 mm (3.178 - 3.140 inch)
Main bearing journal diameter - 0.508 mm (0.020 inch) undersize 80.4793 - 80.5047 mm (3.168 - 3.130 inch)
Main bearing journal diameter - 0.762 mm (0.030 inch) undersize 80.2253 - 80.2507 mm (3.158 - 3.120 inch)
Main bearing journal maximum taper --
Main bearing journal maximum out-of-round --
Main bearing journal-to-cylinder block clearance --
Crankshaft maximum end play 0.222 mm (0.0087 inch)

Piston
Piston diameter - Standard size 94.9460 - 94.9186 mm (3.737 - 3.738 inch)
Piston diameter - 0.254 mm (0.010 inch) oversize 95.1738 - 95.1992 mm (3.747 - 3.748 inch)
Piston diameter - 0.508 mm (0.020 inch) oversize 95.4278 - 95.4532 mm (3.757 - 3.758 inch)
Piston diameter - 0.762 mm (0.030 inch) oversize 95.6818 - 95.7072 mm (3.767 - 3.768 inch)
Piston-to-cylinder bore clearance 0.0441 - 0.0909 mm (0.0017 - 0.036 inch)
Piston ring end gap - top compression 0.29 - 0.55 mm (0.011 - 0.021 inch)
Piston ring end gap - intermediate compression 1.40 - 1.66 mm (0.55 - 0.65 inch)
Piston ring end gap - oil control 0.24 - 0.50 mm (0.009 - 0.019 inch)
Piston ring groove width (measured over 2.03 mm (0.08 inch) gauge pins) Upper limit - 94.030 mm (3.702 inch)
Piston ring groove width (measured over 2.03 mm (0.08 inch) gauge pins) Replacement limit - 93.854 mm (3.695 inch)
Piston pin diameter 33.9975 - 34.0025 mm (1.3385 - 1.3387 inch)
Piston pin length 65.073 - 65.327 mm (2.5619 - 2.5719 inch)
Piston pin-to-piston fit 0.013 - 0.022 mm (0.0005 - 0.0009 inch)

Connecting rod
Rod Bearing I.D. (a, b) 63.513-63.564 mm (2.5005-2.5025 inch)
Rod Length Center to Center 181.10 mm (7.130 inch)
Connecting Rod Alignment Maximum Total Difference
Twist/Inch 0.05 mm (0.002 inch)
Bend/Inch 0.025 mm (0.001 inch)
Rod to Crankshaft assembled Side Clearance 0.30-0.61 mm (0.012-0.024 inch)
Piston Pin Bushing I.D. 33.23-33.25 mm (1.308-1.309 inch)
Crankpin Bearing Bore Diameter 68.339-68.364 mm (2.6905-2.6915 inch)
Bearing Bore
Max Out-of-Round 0.013 mm (0.0005 inch)
Max. Taper per Inch 0.013 mm (0.0005 inch)

(a) Connecting rod bearing bore maximum out-of-round - 0.0005 and maximum bore taper - 0.0005.
(b) With bearing caps tightened in place.

Piston Pin
Length 75.9-76.2 mm (2.99-3.00 inch)
Diameter 33.220-33.226 mm (1.3079-1.3081 inch)
To Piston Pin Bore Clearance (a) 0.007-0.018 mm (0.0003-0.0007 inch)
To Connecting Rod Bushing Clearance 0.010-0.023 mm (0.0004-0.0009 inch)

(a) Selective fit.

For torque specifications, refer to the service procedure.