SEAWATER COOLING SYSTEM SERVICE MANUAL NUMBER 22
Page 6A-36 90-860074--1 FEBRUARY 2002
6. Disconnect seawater and closed cooling hoses as required to allow removal of heat
exchanger and engine oil cooler.
7. Disconnect turbocharger coolant vent hose from fitting on upper-port side of heat
exchanger expansion tank.
8. Remove the two large screw clamps retaining the heat exchanger to the port and
starboard brackets.
9. Remove the heat exchanger and engine oil cooler.
NOTE: If the oil cooler is to be replaced, it will be necessary to replace the complete heat
exchanger assembly.
74484
b
b
a
a
c
a
a
a
Engine Oil Cooler / Heat Exchanger and Related Components
a-Hoses
b-Clamps
c-Coolant Vent Hose Fitting
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