Mainship 40 Trawler Single Operator's Manual - page 118
Mainship 40 Trawler Single & Twin • Engines and Transmissions
11.2
Engine and Transmission
The following is a list of components associated with
your engines and transmissions.
Engine (s)
Engine Mounts
Controls
Engine Monitoring
Engine Cooling
Emergency Equipment
Engine Exhaust
Transmission (s)
Shifters and Controls
11.1 Engine
Your boat is equipped with a marine diesel engine. The
engine drives a propeller through a transmission and pro-
peller shaft. The engine is started with controls at the helm
using a batteries as a power source. Mounted on the engine
is the alternator that keeps the batteries charged. Access
to the engine is through the engine hatch in the salon.
Important: The engine require air to operate. For this reason, do
not operate the engine or generator with this area obstructed.
Figure 11.1
CAUTION
!
!
Take proper care when washing down, or clean-
ing your engines, that water does not enter the air
intakes. Water in the air intakes may go directly to
the cylinders, resulting in rust and possibly internal
engine damage.
Figure 11.2 gives you a look at a typical single engine-
drive and components aboard a boat.
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Important: The engine manual supplied by the manufac-
turer includes complete and detailed information about oper-
ating and maintaining your boat’s engines. Be sure to
read it. Do not start or operate the boat’s engines until you
have done so. The life and performance you receive from
your engines depends greatly on the way you care for it.
The engine manual states the maximum RPM rating
established by the engine manufacturer for your boat’s
engine. Do not exceed this rating. Check the manual for
other information about maximum RPM’s.
The engine manual also specifies a safe oil pressure
rating for the engines. Do not operate an engine if its
pressure is below the minimum rating. The oil pressure
will change as the engine’s speed changes. However, if
the pressure gauge indicates a gradual or sudden drop in
pressure while you are maintaining a constant speed, the
lubrication system may be leaking or the oil pump may
have failed. Shut the engine down immediately. Do not
operate the engine until the problem is corrected. Refer
to the engine manual for complete information.
The engine selected is designed to meet or exceed
industry standards set by marine engine manufacturers.
Important: Engines are not warrantied by Mainship Corporation,
these warranties are written by the engine manufacturers.
CAUTION
!
!
The decking in the engine room can become very
slippery due to heat, water, or oil. Be very careful
when stepping down into the engine room.
Fig. 11.2
F
Engine
Engine Bed
Muffl er
Shaft
Strut
Prop
Pick-up
Strainer
Intake