Section 5 - Maintenance
Page 58
90-8M0099741
eng
JUNE 2015
NOTE: Add coolant only when the engine is at normal operating temperature.
1. Remove the fill cap from the coolant recovery bottle. Inspect the gasket and replace if necessary.
IMPORTANT: Coolant flows at a high rate of speed in this closed cooling system. Higher idle speeds can trap air in the
system and make purge procedures more difficult. Operate at idle when filling the system or purging air.
2. Fill to the full mark with the specified coolant.
Tube Ref No.
Description
Where Used
Part No.
122
Extended Life Antifreeze/Coolant
Closed cooling system
92-877770K1
3. Check the antifreeze concentration for adequate freeze protection and correct if necessary. Refer to the
Specifications
section.
4. Install the fill cap to the coolant recovery bottle.
Changing
Contact your authorized Mercury MerCruiser dealer.
Flame Arrestor
!
WARNING
Fuel is flammable and explosive. Ensure that the key switch is off and the lanyard is positioned so that the engine cannot
start. Do not smoke or allow sources of spark or open flame in the area while servicing. Keep the work area well ventilated
and avoid prolonged exposure to vapors. Always check for leaks before attempting to start the engine, and wipe up any
spilled fuel immediately.
1. There are two engine covers you must remove to access the flame arrestor:
a. Pull the outside engine cover up to remove it from the four rubber mount grommets.
b. Carefully guide the cover past the O
2
sensors.
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c. Lift up on the front of the second cover to disengage the cover from the front grommets. Pull the cover towards the
front of the vessel to remove it from the two rear grommets.
a -
Front grommets
b -
Rear grommets
a
a
b
b
b
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