Honda HRN216 Series Manual page 142

HRN216
CRANKSHAFT INSTALLATION
If the cylinder and piston/connecting rod are already installed,
remove the spark plug, and then set the piston at top dead center.
Rotate the camshaft until the two alignment dots face the
crankshaft bore hole in the crankcase.
Apply engine oil to the keyway in the crankshaft and timing gear
projection, as well as the thrust washer.
Install the timing gear onto the crankshaft and ensure the
projection on the timing gear is fully seated into the keyway in the
crankshaft.
Place the thrust washer into position in the crankcase
Carefully install the crankshaft and timing gear into the crankcase
while aligning the two dots on the timing gear and the two dots on
the camshaft.
Be sure that the crankshaft is fully seated against the timing gear,
and that the two dots on the camshaft still line up with the two dots
on the timing gear.
Rotate the crankshaft two revolutions and confirm the alignment
dots on the camshaft and timing gear are still aligned.
CAM TIMING INSPECTION
Remove the spark plug and crankcase cover
Rotate the crankshaft until the two dots on the timing gear and the
two dots on the camshaft align with each other.
If the dots align, the cam timing is set properly.
If the dots never align, the cam timing is incorrectly set.
To correct the cam timing, remove the crankshaft and timing gear
from the crankcase, and then follow the CRANKSHAFT
INSTALLATION procedure shown above.
PISTON/CONNECTING ROD CAP INSTALLATION
Note
The piston and connecting rod can be installed if the cylinder is already
installed or removed.
Apply engine oil to the outer surface of the piston.
Attach the piston/connecting rod to the crankshaft so that the "FW
" mark stamped on the piston crown points toward the flywheel
side.
Take care not to break the piston rings when installing the piston
assembly into the cylinder.
Install the connecting rod cap so that the projection on the cap and
the projection on the connecting rod are aligned.
Apply engine oil to the connecting rod bolt threads and seating
surface.
Tighten the connecting rod bolts to the specified torque.
TORQUE: 12 N•m (9 ft-lb)
CAMSHAFT/CRANKSHAFT/ PISTON/CYLINDER
CAMSHAFT
ALIGNMENT DOTS
(P. 10-8).
(P. 10-2).
TIMING GEAR
ALIGNMENT DOTS
ALIGNMENT DOTS
MARKS
FLYWHEEL MARK
PROJECTIONS
10-19