Mercury D2.8L D-Tronic Specifications Page 135

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STORAGE
SECTION 6
CMD-4081850 / 90-860094030 SEPTEMBER 2003 Page 127
CD665 w / changes
Draining Instructions
IMPORTANT: Observe the following information to ensure complete draining of
cooling system:
Engine must be as level as possible.
A wire should be repeatedly inserted into all drain holes to ensure there are no
obstructions in passages.
IMPORTANT: Drain seawater section of closed cooling system only.
1. Close seacock, if equipped, or disconnect and plug seawater inlet hose, if boat is to
remain in the water.
CAUTION
Avoid damage to heat exchanger and subsequent possible engine damage.
Remove all water from heat exchanger sections. Failure to do so could cause
corrosion or freeze damage to heat exchanger water passage tubes.
2. Remove the end covers from BOTH port and starboard ends of upper and lower sections
of heat exchanger tank.
3. Drain tank completely.
4. Use compressed air, sponge-out or soak-up any water that remains in the bottom part
of each section, until all water passage tubes are completely free of standing water.
74732
73322
a
b
a
b
a-Upper end cover
b-Lower end cover
NOTE: In the following steps, it may be necessary to lower or bend the hoses to allow water
to drain completely.
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