Exhaust System Flushing - Williams MINIJET Serie Manuel Du Propriétaire

Exhaust System Flushing

To prolong engine life it is very important to
flush the engine of salt water after use and
prior to storage. Failure to carry out flushing
will significantly reduce the life of engine
components and may invalidate the warranty.
In addition, it is advised to thoroughly wash with
fresh water around the jet pump area to remove
all salt deposits after use.
Flushing the exhaust system with fresh water
is essential to neutralize corroding effects of
salt and other chemicals present in water. It
helps to remove sand, salt, shells and other
particles in water jackets, exhaust system, the
intercooler (supercharged engines) and hoses.
Exhaust system flushing should be performed
when the boat is not expected to be used
again the same day or when it is stored for an
extended period of time.
CAUTION. Failure to flush the
system as necessary will severely
damage the exhaust system.
WARNING. Perform the flushing
procedure in a well-ventilated area.
Certain components in the engine
compartment may be very hot. Direct
contact with hot components may result
in skin burns. Do not touch any electrical
part or the jet pump area when the
engine is running.
1 Wash the jet pump area with fresh water
before commencing the flushing procedure.
2 Connect a water hose to the connector
located at the rear of the boat.
Do not open water tap at this time.
3 Start engine and immediately open the
water tap.
CAUTION. Always start the engine
before opening the water tap. Open
the water tap immediately after the
engine is started to prevent overheating.
Never run the engine without supplying
water to the exhaust system when the
boat is out of the water.
4 Run the engine for 20 seconds between
4000 and 5000rpm.
CAUTION. Never run the engine for
more than 2 minutes while the boat
is out of the water. The driveline seal has
no cooling when the boat is out of the
water.
5 Ensure there is water flowing out of the jet
pump while flushing.
IMPORTANT: If water does not flow freely
out of the jet pump during flushing, refer
to an authorized Williams dealer for
service.
6 Close the water tap.
7 Allow the engine to run on for no longer
than 10 seconds to allow water to exit from
the cooling system.
8 Stop the engine.
CAUTION. Always close the water
tap before stopping the engine.
1 Pump assembly
anode
2 Steering cable
3 Reverse cable
1
4
5
4 Footwell drain outlets
5 Flushing attachment
6 Bilge drain plug
2 3
4
6
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