Engine Flush
Volvo Penta engines have an engine flushing port that
can be used to flush the engine with fresh water. Flush-
ing the engine with fresh water after each use will
increase the longevity of components, especially after
operation in brackish or saltwater.
NOTICE!
If flushing the engine with the boat in the
water, do not run higher than idle speed or sea water
may be drawn in with the fresh water.
NOTICE!
When flushing the engine, fresh water pres-
sure must be 17 psi (117 kPa) or greater.
1 If the engine is running, shut it down.
2 Remove the blue plastic cap from the hose that is
clamped to the port side of the engine. It is marked
with the running engine flush symbol .
3 Connect a water hose from a fresh water source to
the female flush connector.
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 cir-
culates throughout the engine.
6 After engine is flushed, shut down the engine.
7 Disconnect water hose and reinstall the cap.
When reinstalling cap
A
make sure O-ring
B
is seated
on cap and gasket
C
is in place in fitting
D
.
NOTICE!
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, causing the engine to overheat, resulting in
damage.
NOTICE!
Drain the engine if freezing temperatures are
expected, see
Draining the Engine
.
P0019975
P0019992
Engine Shutdown
47706354 08-2015 © AB VOLVO PENTA
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