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Section 3 - On the Water
Important Information – SmartStart
IMPORTANT: Some Mercury Diesel models are equipped with SmartStart. SmartStart performs all appropriate starting
operations upon initial start switch actuation. To begin the SmartStart sequence, turn the ignition key switch to the "START"
position and release, or turn the ignition key switch to the run position and press and release the start/stop switch, if equipped.
SmartStart controls the starting process automatically. When the start switch is actuated, the system signals the engine's
electronic controller to start the engine. The starter will receive power until the engine starts and will time out after a few
seconds, or when the engine reaches 400 RPM. Attempting to start the engine with the engine running will turn the engine off.
Starting a Cold Engine
A spinning propeller, a moving boat, or any solid device attached to the boat can cause serious injury or death to swimmers.
Stop the engine immediately whenever anyone in the water is near your boat.
NOTE: Check the fluid levels before starting the engine. Refer to Section 5 ‑ Maintenance Schedule .
1.
Turn on and run the engine compartment bilge blower (if equipped) for five minutes. Alternately, open the engine hatch to
air out the bilge before attempting to start the engine.
2.
Place the control handle in neutral.
NOTE: If the engine has not been run for a period of time and will not readily start with the standard starting procedure, use
the fuel primer located on the fuel filter header. Cycle the primer plunger up and down four or five strokes before
attempting to start the engine.
3.
Turn the ignition key to the "RUN" position.
4.
Turn the ignition key switch to the "START" position then release, or press the start/stop button and release. If the engine
is cold, allow the engine to operate at idle for 6–10 minutes or until the engine reaches normal operating temperature.
IMPORTANT: Engine oil pressure should exceed 69 kPa (10 psi) within seconds of starting the engine. Stop the engine if
the engine oil pressure does not meet this specification. Locate and correct the problem. If you are unable to correct the
problem, see a Mercury Diesel authorized repair facility.
5.
Verify that all instrumentation is functioning properly and indicating normal readings.
Engine Warm Up
Engine wear caused by increased friction and limited oil flow is greatest when an engine is cold. Decrease engine wear by
allowing the engine coolant temperature to reach normal operating range before hard acceleration or applying full throttle.
1.
After starting, ensure that all instrumentation is functioning properly.
2.
Operate the engine at 1,000 to 1,200 RPM until the engine temperature is within the normal operating range. It is crucial
that any engine be warmed up before applying full load. The warm‑up period provides time for the lubricating oil to
establish a film between moving parts.
NOTE: Engine warm‑up time during cold weather can be reduced by operating the vessel at a reduced engine speed.
Begin normal vessel operation when systems reach operating temperatures.
3.
After the engine has reached operating temperature:
a.
The oil pressure should be within the range specified. Refer to Section 4 ‑ Engine Specifications. Stop the engine if
the oil pressure is not within the range specified.
b.
Check the fuel system for leakage from the injection pump, fuel pipes, fuel filter, or fuel lines.
c.
Check the engine and the transmission, oil filter, oil lines, oil line connectors, and oil pan for leaks.
d.
Check the coolant hoses, heat exchanger connections, aftercooler, water pump, and drain fittings for leaks.
4.
Locate and correct any problems, or see your Mercury Diesel authorized repair facility if you are unable to determine the
problem.
Starting a Warm Engine
1.
Turn on and run the engine compartment bilge blower (if equipped) for 5 minutes. Or, open the engine hatch to air out the
bilge before attempting to start the engine.
2.
Place the remote control handle in neutral.
3.
Turn the key switch to "START" position and release the key when the engine starts.
4.
Ensure that all the instrumentation is functioning properly and indicates normal readings.
Page 24
WARNING
!
NOTICE
90-8M0069748
APRIL 2012
eng
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Troubleshooting
