Maintenance
IMPORTANT: Check engine coolant before starting the engine. 1. Allow the engine to cool. 2. Remove the pressure cap from the coolant expansion tank and observe the coolant level. 3. The coolant level in the coolant expansion tank should be within 25 mm (1 in.) of the bottom of the filler neck or between the upper and lower marks, if marked.
a
b
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a - Pressure cap b - Bottom of filler neck 4. If the coolant level is correct, install the pressure cap. 5. If the coolant level is low, do the following. a. Check the coolant system for malfunction. Refer to Section 6A. b.
Add the specified coolant. See Filling the Closed Cooling System .
c.
Install the pressure cap.
Draining the Closed Cooling System
NOTICE Discharge of oil, coolant, or other engine/drive fluids into the environment is restricted by law. Use caution not to spill oil, coolant, or other fluids into the environment when using or servicing your boat. Be aware of the local restrictions governing the disposal or recycling of waste, and contain and dispose of fluids as required.
NOTE: For instructions on draining the seawater section, see Draining the Seawater System. IMPORTANT: Observe the following points. • Ensure that the engine is as level as possible to promote complete draining of the cooling system. • The closed cooled section must be filled year‑round with the required coolant. If the engine will be exposed to freezing temperatures, ensure that the closed cooled section is filled with a solution of ethylene glycol antifreeze and properly–mixed water that will protect the engine at the lowest temperature to which it will be exposed. • Do not use propylene glycol antifreeze in the closed cooled section of the engine.
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CMD-4082040 / 90-866941 NOVEMBER 2007