13-4
12) Remove the crankshaft from the cylinder block with care
not to damage (scores, scratches, etc.) the journals.
Remove the two thrust washers.
13) Before removing the upper main bearings, check each
bearing for damage (scores, scratches, etc.) and replace if
necessary.
14) Remove the five upper main bearings from the cylinder
block.
Store the upper main bearings separately for each journal.
15) Remove the oil jet orifice and the 6.5 x 1.5 mm O-ring from
the cylinder block, and check the oil jet orifice for blockage.
If it is clogged, clean it with a cleaning solvent and remove
the blockage by blowing the oil passage with the
compressed air.
If the blockage cannot be removed by blowing with the
compressed air, replace the oil jet orifice with a new one.
Remove the blockage with care not to damage the oil
passage of the oil jet orifice.
NOTICE
NOTICE
16) Remove the oil jet bolt from the No.1/No.2 cylinder of the
cylinder block and remove the oil jet body.
17) Remove the piston assembly from the cylinder by pushing
the piston assembly with the handle of a hammer as
shown.
• Before removing the piston assembly, remove the carbon
deposits from the cylinder with care not to damage
(scores, scratches, etc.) the piston.
• Do not damage the cylinder with the connecting rod.
• Store the removed piston assembly components
separately for each cylinder.
NOTICE
[1]
CRANKSHAFT
[3]
THRUTST
WASHER (2)
[2]
UPPER MAIN
BEARING (5)
[5]
OIL JET ORIFICE
[4] 6.5 x 1.5 mm O-RING
[1]
OIL JET BOLT
[2]
OIL JET
BODY
[2]
CYLINDER BLOCK
[1]
PISTON ASSEMBLY
