System Specifications

SURFACE VARIATION

Cylinder Head For Out-of-flatness 0.0508 mm (0.002 in.)

CYLINDER BORE

Cylinder Bore Diameter 99.50 mm (3.92 in.)
Taper (MAX) 0.0127 mm (0.0005 in.)
Out of Round (MAX) 0.0076 mm ( 0.0003 in.)

CRANKSHAFT

Bearing Clearance 0.020 - 0.060 mm (0.0007 - 0.0023 in.)
Out of Round (MAX) 0.005 mm (0.0002 in.)
Taper (MAX) 0.003 mm (0.0001 in.)

Main Bearing Journal Diameter 64.988 - 65.012 mm (2.5585 - 2.5595 in.)
Bearing Clearance 0.023 - 0.051 mm (0.0009 - 0.002 in.)
Out of Round (MAX) 0.005 mm (0.0002 in.)
Taper (MAX) 0.003 mm (0.0001 in.)
End Play 0.052 - 0.282 mm (0.002 - 0.011 in.)
End Play (MAX) 0.282 mm (0.011 in.)

MAIN BEARING SELECTION CHART





MAIN BEARING CAP





Tighten main bearing cap bolts to 13 Nm ( 10 ft. lbs.) in the sequence shown.
Tighten main bearing cap bolts to 27 Nm ( 20 ft. lbs.) in the sequence shown.
Rotate main cap bolts an additional 90° in the sequence shown.





Tighten cross bolt to 28 Nm ( 21 ft. lbs.).
Repeat cross bolt tightening procedure.


CONNECTING RODS

Journal Diameter 53.992 - 54.008 mm (2.126 in.)
Bearing Clearance 0.020 - 0.060 mm (0.0007 - 0.0023 in.)
Bearing Bore Out of Round (MAX) 0.005 mm (0.0002 in.)
Taper (MAX) 0.003 mm (0.0001 in.)
Side Clearance 0.10 - 0.35 mm ( 0.003 - 0.0137 in.)

PISTONS

Clearance
Measured at 38.0 mm (1.5 in.) Below Deck 0.031 - 0.058 mm (0.012 - 0.023 in.)
Weight 413 grams ( 14.56 oz)
Piston Length 53.3 mm (2.10 in.)

PISTON RINGS

Ring Groove Diameter
Top Groove 90.4 - 90.6 mm (3.56 - 3.57 in.)
Second Groove 88.4 - 88.7 mm (3.48 - 3.49 in.)

Ring Gap
Top Compression Ring 0.40 - 0.55 mm (0.015 - 0.021 in.)
Second Compression Ring 0.24 - 0.51 mm (0.009 - 0.020 in.)
Oil Control Rails 0.15 - 0.66 mm (0.0059 - 0.0259 in.)

Side Clearance
Top Compression Ring 0.04 - 0.09 mm (0.001 - 0.0035 in.)
Second Compression Ring 0.04 - 0.08 mm (0.001 - 0.0031 in.)
Oil Control Rails 0.06 - 0.21 mm (0.002 - 0.008 in.)

CRANKSHAFT PULLEY

Vibration Damper Bolt 176 Nm (130 ft. lbs.)