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13.
Installation Instructions
NOTE: Before shipment, each engine has been carefully tested
and inspected. It may be necessary to delete or add oil from
the engine and transmission for various engine installations. If
engine is equipped with a closed cooling system, it is imperative
to fill the system with a 50/50 mix of ethylene glycol base anti-
freeze and clean fresh water. Failure to use a 50/50 mixture of
antifreeze and water can result in engine damage.
(See Section 3: Engine Identification)
Engine Compartment
The engine compartment should be well-planned giving
consideration to accessibility and ventilation. Engines must have
air as well as fuel to operate efficiently. The battery should be
located as close as possible to the starter motor so that the battery
leads can be kept short. EFI engines equipped with the SMART
START option have a direct connection to the battery or battery
switch. Engine wiring harness includes notation on Red/White
wire.
Engine Mounting
Engine installation is very important. If the angle is severe (over
12 degrees) oil capacity may need to be adjusted.
Engine Rotation
Directional references used in this section are given as if standing
behind the boat, looking forward:
40
• Front of boat is bow
• Rear of boat is stern
• Right side is starboard
• Left side is port
The raw water (or Sea Water) pump is located at the front of the
engine on the crankshaft pulley. Engine rotation can be deter-
mined by looking at the stern end of the engine and observing the
flywheel rotation. Do not assume engine rotation by looking at
the propeller rotation; it may not be the same. This information
is critical when ordering parts for your engine.
Left Hand Engines: CCW or Normal Rotation
Right Hand Engines: CW or Opposite Rotation
DI Engines are NOT Available in Right Hand Rotation.
Engine Bed
The engine bed should be of horizontal design and heavily
constructed to maintain engine alignment. All of the thrust used
in moving the boat is transferred to the hull through the engine
bed. The standard engine has support mounts that are intended
to be used on engine beds arranged for 22½" - 24" bolt centers.
Use adequate bolts for each support. Make certain there is no
interference on the underside of the engine between the oil pan
or other components located in that area and the hull.
Cooling System
Closed cooled engines use a combination of freshwater coolant
(50% antifreeze + 50% water) and seawater for cooling. The
closed cooling system will operate at 170° - 190° F. The system
is monitored by the water temperature gauge on the instrument
panel and, in the case of EFI, the Engine Control Module. On EFI
engines the ECM will activate the POWER REDUCTION MODE if
the engine temperature reaches 210° F. The POWER REDUCTION
MODE reduces RPM to approximately 2500. The cooling system
must receive a sufficient amount of sea water under all operating
conditions to operate properly. Cooling water may be supplied
from a stern drive unit or a through hull inlet scoop. ENPACS
mated with stern drives that have water pumps in the drive leg
can use the water supply from the leg without using an impeller
seawater pump. If the ENPAC is equipped with closed cooling, a
sea water pump will be part of the engine configuration and a
through hull inlet scoop must be used. In that case, the through
hull fitting and sea cock should be placed as close to the engine
as possible and be one size larger than the water pump inlet. The
water pump inlet scoop should face the bow of the boat in an area
where there are no obstructions. Obstructions could cause water
turbulence and prevent a solid stream of water from entering the
sea scoop. Regardless of the supply (stern drive or inlet scoop)
the coolant water inlet hose must be of a non-collapsing type. If
a through hull inlet scoop is used, it is highly recommended that
a sea strainer of adequate size and capacity be installed between
the sea cock and engine sea water pump. If no sea strainer is
installed, periodically check the cooling inlet piping and hose
to clear debris from engine and transmission oil coolers. Debris
entering the cooling system is one of the main causes of over-
heating.
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