Johnson J10RLSUR, Руководство по обслуживанию

Страница: 134 / 229

132
POWERHEAD
DISASSEMBLY
Use a 5/32 in. Allen wrench to remove connecting
rod screws. Remove the rod caps and bearing
retainers.
Lift the crankshaft out of the cylinder block.
Replace the connecting rod caps on the rods. Ori-
ent them exactly as they were before you
removed them. Install the screws finger tight.
Use diagonal-cutting pliers to remove the flywheel
key from the crankshaft. Remove the upper seal
and main bearing from the crankshaft.
Remove the retaining ring from groove of the cen-
ter main bearing. Separate the bearing and
remove the 23 loose needle bearings.
IMPORTANT:
Remove the lower main bearing
only if it needs to be replaced.
Use external retaining ring pliers to remove the
lower bearing retaining ring and a bearing separa-
tor to support the bearing. Place the separator
flats against the bearing and press the crankshaft
from the bearing.
Rotate the powerhead so the cylinder head faces
up. Remove the cylinder head and gently push up
on the connecting rods to remove number 1 and
number 2 piston assemblies.
IMPORTANT:
Protect the piston by packing
paper towels between the connecting rod and pis-
ton. Do not allow the connecting rod to contact the
inside of the piston skirt during handling.
Remove the piston rings using an appropriate ring
expander. DO NOT try to save the rings. Install a
complete set of
new rings at reassembly.
32393
32391
COB1126
COB1127
TYPICAL 22153