Mercury INSTALLATION MANUAL D7.3L D-TRONIC - Manual (Page 82)

D7.3L D-TRONIC DIESEL ENGINES - BRAVO MODELS
Page 82 of 90
1. Close seacock, if so equipped, or disconnect and plug seawater inlet hose, if boat is to
remain in the water.
2. Remove and drain the following:
a. The end covers from both the port and starboard sides of heat exchanger. Drain tank
completely.
IMPORTANT: Use compressed air to blow any remaining water from the tubes in the
heat exchanger.
b. The drain plug on the lower side of the engine oil cooler.
c. The aftercooler drain plugs located on the starboard and port aftercooler side
covers.
NOTE:
Only the port aftercooler side cover is shown. Starboard is similar.
d. Disconnect seawater outlet hose at bottom of exhaust elbow. Lower hose and drain
completely.
76122
71870
76186
a
a
b
c
76075
76106
d
a -
End Covers
b -
Oil Cooler Drain Plug
c -
Aftercooler Drain Plugs (Port and Starboard)
d -
Seawater Outlet Hose