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Chapter 10 Disassembly and Reassembly
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3. Disassembly and Reassembly
3-1 Disassembly
For engines mounted in an engine room, remove the pip-
ing and wiring connecting them to the ship.
( 1) Remove the remote control cable (from engine and
marine gearbox).
(2) Uunplug the extension cord for the instrument panel
from the engine.
(3) Remove the wiring between the starting motor and the
battery.
(4) Remove the exhaust rubber hose from the mixing
elbow.
(5) Remove the fresh water sub-tank rubber hose from the
filler cap.
(6) Remove the cooling water (sea water) pump sea
water intake hose (after making sure the Kingston
cock is closed).
(7) Remove the fuel oil intake rubber hose from the fuel
feed pump.
(8)
Remove the body fit (reamer) bolts and disassemble
the propeller shaft coupling and thrust shaft coupling.
(9) If a driven coupling is mounted to the front drive coupl-
ing, disassemble.
(10) Remove the flexible mount nut, lift the engine, and
remove
it
from the engine base.
(Leave the flexible mount attached to the engine
base.)
3-1.1
Drain cooling water
(1) Open the sea water drain cock between the sea water
pump and lube oil cooler to drain the sea water.
(2) Open the cylinder body drain cock to drain the fresh
water from the cylinder head and cylinder body.
(3) Open the fresh water drain cock on the lower part of
the fresh water tank to drain the fresh water.
Fresh water tank
Alternator
For seawater
Fresh water tank
Alternator
Seawater pump
n
3-1.2
Drain lube oil
(1)
Remove the pipe coupling bolt which holds the lube oil
dip stick guide, and drain the lube oil from the engine.
(2) Remove the drain plug on the lower part of the crank
case contron side, and drain the lube oil lrom the marine
gearbox.
NOTE:
If a lube oil supply/discharge pump is used for the
engine, the intake hose is placed in the dip stick
guide, and for the clutch side (gearbox) it is placed
in the oil hole on top of the case.
3-1.3 Removing (electrical) wiring
Remove the wiring from the engine.
A - - - Lube oil
qo;:r-
pressure switch
~Joint
Air heater
Tachometer sensor
Alternator
10-14
Cooling water temperature switch
Printed in Japan
HINSHI-H8009
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