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BOAT OPERATION
ENGINE
Andiamo
has a Yanmar 20 horsepower auxiliary engine (Model – 3YM-20). The engine drives a two-blade
propeller forward and reverse. There is a single control lever that operates both the throttle and
transmission. On the engine control panel there are gauges for RPM, fuel, ammeter, oil pressure, engine
hour counter and water temperature. A sound alarm is provided to indicate high fresh water temperature and
low oil pressure. The engine will propel
Andiamo
at about 6.5 knots in calm water at 2600 RPM. We ask
that you maintain engine RPM between 2300 and 2800 for cruising. Higher throttle settings will only
minimally increase speed, but will greatly increase fuel consumption and wear on the engine. Please limit
higher throttle settings for emergency situations.
Andiamo
has noticeable prop-walk to port in reverse.
When in reverse, be careful to keep a firm grip on the wheel and use only low RPM's.
Engine Inspection
Each day you are planning to use the engine, you should run through your
W.O.B.B.S.
check the WATER (coolant), OIL, BILGE, BELTS, and. SEA STRAINER
Engine Oil:
Check the oil level in the engine with the
dipstick located on the starboard side of the
Engine. The oil level should be anywhere
between the high and low marks. Spare oil is
kept on board, and should be located during
your orientation. The companionway ladder
must be removed to access the engine to add
oil. If you need to add oil, please use great
care not to overfill. Running the engine with
too much oil will cause damage.
Engine Coolant:
Check the level of coolant in the expansion
tank. Engine coolant is a mixture of 50%
antifreeze and 50% water. There is coolant
kept on board and should be located during
your orientation.
Belts:
Check the general condition of the belts, hoses, and fuel lines.
Bilges:
Remove the largest cabin sole panel under the dinette table to check the bilges. There is normally a small
amount of water in the bilge. Check for debris, oil, or anything unusual. There is also normally some water
in the bilge aft of the engine, below the prop shaft. This does not drain to the main bilge, to prevent oil from
being pumped overboard by the bilge pump.
Cooling System:
The Yanmar engine is cooled by a heat exchanger. The engine pumps sea water through a sea water strainer,
then through a heat exchanger that cools the coolant fluid, thus cooling the engine. The sea water is then
pumped overboard.
Coolant
Sea strainer
Dip Stick
