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 exchanger. The raw water enters the cooler and flows through
(b) Remove stud (1), gasket (2), shell (3),
the inside of the tube bundle and out of the cooler to the heat
and spring (4).
exchanger. The lubricating oil enters the cooler and flows
(c) Remove and discard filter element (5).
over the outside surface of the tube bundle. The purpose of
(d) Remove the nonmetallic washer from
the oil cooler is to cool the main engine lubricating oil. A
the adaptor.
bypass valve line is fitted to the oil cooler to provide a path for
(2)
Cleaning.
oil in the event the cooler becomes clogged. Zinc corrosion
(a) Wash shell (3), stud (1), and spring (4)
eliminator plates are located in the heat exchanger to
in clean fuel oil, then wipe dry with a lint free cloth.
compensate for the electrolytic action of the raw water.
(b) Wash the bowl of the adaptor with fuel
b. Removal, Disassembly, Cleaning, Inspection, Repair,
oil to remove all sludge. Blow dry with compressed air.
(3) Reassembly.
(1) Install a new gasket (2) on stud (1), then insert
stud through shell (3).
5-13.
Fuel Injector
(b) Position spring (4) on stud (1), and
a. General. The fuel injector meters and injects the
slide filter element (5) onto the stud and inside the shell (3).
exact amount of fuel required to handle the load; it atomizes
(c) Insert the nonmetallic washer (6) in
the fuel and sprays it into the combustion chamber at the high
groove in the adapter. Position shell (3) on the adaptor, and
pressure required for efficient injection, and permits
secure with the stud (1).
continuous fuel flow. The continuous fuel flow through the
(d) Tighten the stud to a torque of 40-50 ft.
injector prevents air pockets in the fuel system, and serves as
lb.
a coolant for those injector parts subjected to high combustion
d. Installation. Install the oil filter on the engine block as
temperatures.
described in paragraph 5-2.k.(2).
b. Removal.
(1) Remove rocker arm cover.
5-12.
Oil Cooler
(2) Remove fuel lines (1 and 4, fig. 5-41).
Screw shipping cap over injector inlet and outlet to prevent
a. General. The lubricating oil cooler is a two pass
entrance of dirt.
cooler mounted in a horizontal position. The unit is located on
the starboard side of the engine room aft of the heat
5-49
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