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7741591 / 2003-12
Operating procedure for freezing tempera-
tures
When freezing temperatures are forecast and the boat will be
operated and left in the water, the drive unit must remain in the
tilted down (submerged) position at all times to prevent water
in the drive unit from freezing. Upon completion of engine oper-
ation, drain the engine as described in the maintenance sec-
tion of this manual
Salt water operation
Your can use your Volvo Penta sterndrive in either fresh or salt
water.
We recommend that you use fresh water to flush out the en-
gine and drive as described in the maintenance section of this
manual after you use it in polluted or salt water. This will pro-
long the service life of the manifolds and risers.
Twin unit operation
When leaving or approaching the dock, or for any close ma-
neuvering at slow speed, place the starboard engine in
NEU-
TRAL, on standby, and use the port engine with the control
nearest the operator. The use of one control is very effective
and more convenient.
In the event that the port engine being used for maneuvering
stops, you can immediately go to the starboard engine which
has been on standby.
WARNING!
FAILURE TO FOLLOW THE ABOVE MANEUVERING PRO-
CEDURE COULD RESULT IN A COLLISION AND PERSONAL
INJURY.
CAUTION!
BOTH ENGINES MUST BE RUNNING DURING CLOSE MA-
NEUVERING OR AT SLOW SPEEDS. IF ONLY ONE ENGINE
IS RUNNING, WATER MAY BE FORCED BACK THROUGH
THE UNDERWATER EXHAUST OUTLET AND CAUSE SERI-
OUS ENGINE DAMAGE.
DO NOT ATTEMPT TO PLANE THE BOAT WHILE OPERAT-
ING ON A SINGLE ENGINE. THE PROPELLERS ARE SE-
LECTED FOR THE BOAT TO OPERATE OPTIMALLY WITH
TWIN ENGINES. ATTEMPTING TO PLAIN THE BOAT WITH
A SINGLE ENGINE COULD CAUSE ENGINE DAMAGE.
Special boating circumstances
Engine protection mode operation (fuel injected
engines)
In a low oil pressure, engine overheat, or exhaust overheat sit-
uation, the EFI system enters an Engine Protection Mode.
When this mode is entered, normal engine operation is limited
to 2500 RPM or less. Above 2500 RPM the engine will exhibit
poor running characteristics. Use the oil pressure and water
temperature gauges to verify a problem exists, then check the
engine crankcase for proper oil level and the water inlets for
obstructions. The low oil pressure, engine overheat, exhaust
overheat problem must be corrected before the engine will re-
turn to normal operation. To leave the Engine Protection Mode
after the problem is corrected, turn engine off then
START
again.
NOTE! If the problem continues, contact your near-
est Volvo Penta dealer and have the engine
checked.
Shallow water operation
You may tilt the drive unit to reduce the draft for shallow water
running as long as you do not exceed 1000 RPM. Exceeding
1000 RPM is not necessary. It will only increase the boat wake
and will not increase boat speed appreciably.
CAUTION!
Exceeding 1000 RPM with the drive unit tilted could
damage drive train components. This type of dam-
age is not covered by warranty. Never attempt to plane
the boat or exceed 1000 rpm with the drive unit in a
partially tilted position. Always return to the trim range
as soon as possible to avoid damage to drive train.
Never run the engine when the drive unit is tilted more then 30°
or the drive will be damaged.
When operating in shallow water, be sure the water intakes lo-
cated in the lower gear unit are submerged at all times. Pro-
ceed at slow speed and lower drive unit immediately when
deeper water is reached.
High altitude operation
Volvo Penta EFI engines have programmed altitude com-
pensation; however, there may be a slight performance loss at
altitudes above 5000 feet due to lower air density. If you are
boating above 5000 feet for a short time, a lower pitch propeller
will restore some of the lost performance. Long term use above
altitudes of 5000 ft. may require a change in gear ratio.
Volvo Penta carbureted engines may require mechanical mod-
ifications. See your Volvo Penta dealer for more information.
Operation
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