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DISCOVERY OPERATING MANUAL
NW Explorations
Engine Room
Preferred access to the engine room
is through the floor hatch by the
entertainment center in the salon.
Engine room lighting is turned on by a
breaker in the ship’s DC power panel.
The engines are to each side, while
forward of the engines are their sea
strainer/seacocks, the sea strainer for the
refrigeration system, the vacuum pump
for the forward head, filters for the
watermaker. On the forward bulkhead
of the room are wiring terminals and
the ship’s inverter. Outboard of the
engines to starboard are the ship’s
furnace, watermaker, and two batteries;
to port are the fresh water pressure
pump and accumulator tank, the water
heater, refrigeration compressors, and
two more battery boxes.
Just aft of the engines outboard are
the two fuel tanks, with sight gauges
for fuel levels (the valves at each end
of the gauge for safety must be opened
for a tank reading). Aft of the engines
midships is the Northern Lights
generator in its sound shield; and to
each side of it are the main engine
Racor primary fuel filters. To starboard
of the genset are the oil change pump
and a set of controls for the genset.
To port of the genset is its sea strainer
and Racor, the aft head vacuum pump
and accumulator tank, and the genset
muffler. The engine shafts lead from the
transmission couplings through the
hull via virtually maintenance-free shaft
logs/packing glands. Just forward of the
genset midships is a fuel manifold panel
(which requires no operation under
normal circumstances) and beneath the
genset is one of the ship’s two water
tanks; the other is forward.
Right over the middle of the port engine.
The water pressure accumulator tank
to right (the refrigeration compressor is
forward of it), thewater heater, and the
synchronizer unit.
Forward, just to port: The inverter above
its battery switch. To right, a water
faucet. To left, the refrigeration control
box, and underneath a battery box.
In the center aft engine room you
see the white genset box; the fuel
manifold with its valves, and the fuel
filters for each engine. The genset
battery is outboard of the port engine.
Looking over the top of the starboard
engine aft of the wiring panel: we see
the heater system and its various
hoses. Note the asbestos-wrapped ex-
haust going out the starboard side:
we talk about this under “Furnace”
later in this manual.
Looking to starboard at the forward
end of the engine room. You see the
battery switches (foreground) a head
systen vacuum pump, the battery
charger and the wiring panel,
and the steering cables.
Looking aft of the starboard engine
there is the starboard fuel tank with
its sight gauge; a set of generator
controls, and the sound shield
around the generator.
