Engines and Transmissions
11.4
11.1.4 Engine Cooling
There are two separate systems that cool your engines.
The raw water cooling system is described in detail in
your “Water Systems” (section 9) of this manual. The
internal engine cooling system is supplied by the engine
manufacturer. This system features a closed antifreeze
coolant bottled in a reservoir attached to the engine.
Coolant is circulated through the engine in separate
channels than the raw water cooling.
Note: Be sure the engine seacocks are open before you start
the engine. Failure to open them will cause damage to the
water pump impeller.
Hot coolant under pressure may boil over and cause
burns or other personal injury when pressure cap is
removed. Allow engine to cool. Open pressure cap
slowly to allow pressure to vent before removing
cap.
11.1.5 Emergency Equipment
Your engines are set up to operate under the toughest
conditions. However, should the oil pressure become
too low, or the engine overheat, alarms will sound at
the helm. There are several conditions that will sound
an alarm and save you from damaging your engines.
Be sure and study your documentation supplied by the
engine manufacturer to ensure you will know what the
alarm means should one sound on your boat.
11.2 Transmissions
The transmission has a reduction gear which drives
the propeller at a slower rotation speed than that of the
engine.
Consult your OEM manual for complete transmission
information.
A. Oil filler cap
B. Dipstick
Fig. 11.3
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