Honda WB20XT2 Manual page 115

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CRANKCASE
CRANKSHAFT/PISTON
REMOVAL/INSTALLATION
Remove the following:
– Fuel tank (page 6-3)
– Flywheel (page 8-4)
– Cylinder head (page 12-3)
– Crankcase cover (page 13-3)
PISTON (Outer surface and big end bearing)
INSTALLATION:
Install the piston Assy. to the cylinder barrel with the mark
(1) on the piston head toward the push rod hole (2) of the
cylinder head.
(2)
CONNECTING ROD LOWER
(Big end bearing)
INSTALLATION:
Set the connecting rod lower with
the oil dipper toward the camshaft.
CONNECTING ROD BOLT (2)
(Threads and seating surface)
WB20XT2: (7 x 34 mm)
12 N·m (1.2 kgf·m, 9 lbf·ft)
WB30XT2: (6 x 34.5 mm)
9.8 N·m (1.0 kgf·m, 7.2 lbf·ft)
13-4
(1)
CRANKSHAFT
(Pin and gear teeth)
INSTALLATION:
Be careful not to damage the oil seal lips.
WB20XT2•WB30XT2
VALVE LIFTER
(Pivot, pivot end and slipper surface)
REMOVAL:
Mark the valve lifters so that the
intake and exhaust sides can be
distinguished.
INSTALLATION:
Attach the valve lifters to the
cylinder barrel immediately before
installing the camshaft.
CYLINDER BARREL
(Cylinder inner surface)
CAMSHAFT
(Cam journal and profile)
INSTALLATION:
Install the timing gear (1) of the
crankshaft and camshaft (2) by
aligning the punch marks (3).
(3)
(1)
(2)