Bilge Pump, Exhaust System Flushing - Williams SPORTJET Owner's Handbook Manual

Bilge Pump
The bilge pump operates automatically.
It can also be manually turned on by pressing
the bilge pump button located on the helm
console.
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 neutralise corroding effects of
salt and other chemical products present in
water. It will help to remove sand, salt, shells
and other particles in water jackets, exhaust
system, 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.
system as necessary will severely
damage the exhaust system.
WARNING.
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 Ensure the raw water filter is clean and
clear of any debris. Open up and clean out
the internal filter.
20
Failure to flush the
Perform the flushing
The pump inlet has a mesh which should be
regularly checked for any dirt and debris.
3 Connect a water hose to either the
connector located at the rear of the boat
on the jet pump support (460 & 520) or to
the flushing point inside the helmsman's
footwell (345, 395 & 435).
Do not open water tap at this time.
4 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.
5 Continue to run the engine for 90 seconds
at idle speed.
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.
6 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 authorised Williams dealer for
service.
7 Close the water tap.
8 Run the engine at 5000 RPM for 5 seconds
then stop the engine.
CAUTION. Always close the water
tap before stopping the engine.
9 Disconnect the hose from the flushing
attachment.