Albemarle 41 CONVERTIBLE, Owner'S Manual, Page: 15 / 138

15
4
10 Convertible
Chapter 1:
PROPULSION SYSTEM
1.1 General
The Albemarle 41 Convertible is designed to be powered with
twin diesel inboard engines. Each manufacturer of the various
marine power components provides an owner’s information
manual with their product. It is important that you read the
manuals very carefully and become familiar with the proper
care and operation of the engines and drive system. A warranty
registration card has been furnished with each new engine and
can be located in the engine owner’s manual. All information
requested on this card should be filled out completely by the
dealer and purchaser and then returned to the respective engine
manufacturer as soon as possible.
DO NOT ATTEMPT TO SERVICE ANY ENGINE OR
DRIVE COMPONENT WITHOUT BEING TOTALLY
FAMILIAR WITH THE SAFE AND PROPER SERVICE
PROCEDURES. CERTAIN MOVING PARTS ARE
EXPOSED AND CAN PROVE DANGEROUS TO
SOMEONE UNFAMILIAR WITH THE OPERATION
AND FUNCTION OF THE EQUIPMENT.
1.2 Drive Systems
On inboard propulsion systems, all shifting and gearing com-
ponents are installed inside the hull. Only the propeller shafts
and associated equipment are under water. The engines are
mounted below the cabin floor. A transmission, also called a
gearbox, which performs desired shifting functions, is directly
coupled to each engine. The propeller shaft extends through
the hull and connects the transmission output coupling with the
propeller. The transmissions have built-in reduction gearing.
This gearing reduces the speed of the propeller in relation to
engine speed.
ALWAYS RETURN THE ENGINE THROTTLE LEVERS
TO THE EXTREME LOW SPEED POSITION BEFORE
SHIFTING. NEVER SHIFT THE UNIT WHILE THE
ENGINE SPEED IS ABOVE 1000 RPM.
All transmissions require oil or fluid of some type for lubrica-
tion. This level should be checked at the same interval as the
engine oil level.
Your boat is equipped with transmissions supplied by the en-
gine manufacturer. For details on the transmissions, refer to
the engine or transmission owner’s manual.
1.3 Engine Exhaust System
Engine exhaust exits the rear of the boat through the exhaust
system. The system consists of engine exhaust manifolds,
exhaust hoses, mufflers, and thru-hull exhaust fittings.
Inboard boats use the exhaust system to expel exhaust gases
and cooling water. A periodic inspection of the hoses, muf-
flers and related parts should be made to ensure that leaks or
heat deterioration have not resulted. Periodically inspect these
items for signs of deterioration or damage. Replace them as
necessary.
DO NOT INHALE EXHAUST FUMES! EXHAUST
C O N TA I N S C A R B O N M O N OX I D E T H AT
IS COLORLESS AND ODORLESS. CARBON
MONOXIDE IS A DANGEROUS GAS THAT IS
POTENTIALLY LETHAL.
1.4 Engine Cooling System
All marine engines use surface water as a cooling medium.
The cooling water enters the system through a water intake in
the hull and is expelled through the exhaust system. Water is
pumped through the water inlets, circulated through the engine
block or heat exchanger, and relinquished with the exhaust
gases through the exhaust system. The water pump uses a small
impeller made of synthetic rubber. The impeller and water
pump cannot run dry for more than a few seconds.
Propulsion System