Engine Overheating (All Other Models); Engine Flush - Volvo Penta 3.0GLP-C Owner's Manual

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VPA 7743722 English 10-2004

Engine Overheating (All other Models)

If your engine overheats, the audible alarm will sound
and a temperature gauge on your instrument panel
will indicate your engine is overheating.
1. Turn off the engine.
2. Tilt the drive up and look for obstructions to the
water intakes (e.g., seaweed, plastic bags, etc.).
3. Lower the drive unit.
4. Start engine and run in NEUTRAL at 1500 RPM.
5. Check the engine gauge to verify the condition.
6. If overheating still occurs, do not operate the
engine unless it is an emergency. Only operate it
until you are clear of the emergency and seek a
tow to shore.
CAUTION! Continuing to operate an over-
heating engine will cause engine damage.
7. See your Volvo Penta dealer for assistance.

Engine Flush

Volvo Penta engines incorporate an engine flushing
port designed to flush the engine with fresh water
while the engine is running. If flushing the engine with
the boat in the water, the engine should not be run
higher than idle or sea water may be drawn in with the
fresh water.
1. If the engine is running, shut it down.
2. Remove the blue plastic cap from the hose that is
clamped to the starboard side of the engine. It is
marked with the running engine flush symbol (1).
3. Connect a water hose from a fresh water source
to the flush connector on the engine (2).
4. Turn water on full and start the engine.
5. Let engine idle until engine temperature stabilizes
at its normal operating range. This will allow the
thermostat to open and ensure the fresh water
circulates throughout the engine.
6. After engine is flushed, shut engine the down.
7. Disconnect water hose and reinstall the cap.
CAUTION! When re-installing the blue cap on
the fresh water flush hose, tighten it by hand,
then tighten 1/4 turn using a wrench. If the
cap is too loose, air may be sucked in, caus-
ing the engine to overheat, resulting in dam-
age.
Drain the engine if freezing temperatures are expect-
ed. For details on draining the engine, please refer to
the section entitled Draining the Cooling System on
page 86.
Maintenance
85