Starting A Cold Engine; Engine Warm-Up; Starting A Warm Engine - Mercury TDI 4.2L Manual

Starting a Cold Engine

IMPORTANT: Check the fluid levels before starting the engine. Refer to the Maintenance Schedule.
Never operate the starter motor longer than 15 seconds at a time to avoid overheating the starter motor. If the engine does not
start, wait one minute to allow the starter motor to cool; then, repeat the starting procedure.
1. Run the engine compartment bilge blower for five minutes, or open the engine hatch to air out the bilge before attempting
to start the engine.
2. Place the sterndrive in the full down (in) position.
3. Place the control handle in neutral.
4. If the engine has not been run for a long period of time and will not readily start with the standard starting procedure,
proceed as follows.
5. Turn the ignition switch to the "ON" position and the fuel pump will run for five seconds. Turn the ignition switch to the
"OFF" position and wait for five seconds. repeat this step six times.
6. Start the engine.
IMPORTANT: Within seconds after starting the engine, the oil pressure should exceed a minimum of 10 psi (69 kPa). If the
oil pressure is below the minimum specification, stop the engine then locate and correct the problem. If you are unable to
determine the problem, see your Mercury Diesel‑authorized repair facility.
Engaging the starter motor while the engine is operating can damage the starter motor or flywheel. Do not engage the starter
motor continually for longer than 15 seconds. Do not engage the starter motor when the engine is operating.
7. Verify that the charge indicator and oil pressure warning lamps are off.
8. Verify that all instrumentation is functioning properly and indicating normal readings.
9. Allow the engine to reach a normal operating temperature before demanding power from the engine.
Engine Warm‑Up
1. After starting the engine, verify that all instrumentation is functioning properly.
2. Operate the engine at 1000–1200 RPM until the engine temperature is within the normal operating range. It is important
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.
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.
3. After the engine has reached operating temperature:
a.
The oil pressure should be within the range specified. Refer to Specifications—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 drive system for oil leakage. Specifically inspect the oil filter, oil lines, oil line connectors, and
oil pan.
d. Check for coolant leaks. Check the coolant hoses and connection pipes of the heat exchanger, fluid coolers,
aftercooler, water pump, and drain fittings for leaks.
4. Correct any problems found, or see your Mercury Diesel‑authorized repair facility if you are unable to determine the
problem.

Starting a Warm Engine

1. Run the engine compartment bilge blower for five minutes, or open the engine hatch to air out the bilge before attempting
to start the engine.
2. Move the remote control handle to the "NEUTRAL" position.
3. Turn the key switch to the "ON" position.
4. Turn the key switch to the "START" position and release the key when the engine starts. Verify that the charge indicator
and oil pressure warning lamps turn off.
5. Verify that the instrumentation functions properly and normal readings are indicated.
90-8M0114081 DECEMBER 2015
eng
NOTICE
NOTICE
Section 2 - On The Water
Page 21