Page 16 - Vetus

M-LINE

M-Line engines are quiet running, highly fuel-efficient, reliable and offer high power and
torque output. The fuel systems are automatically self-bleeding, a great convenience after
a fuel filter replacement. All engines are equipped with a high output marine alternator as
standard for fast recharging of batteries. A second alternator is available as an option on all
type M4 engines. And there is more….!

INNOVATION
Engine space temperature reduction
The heat build-up in engine spaces can easily reach temperatures of 158°F (70°C). High
ambient temperatures in the engine space can have negative effects on engine performance
and installed equipment.

VETUS has developed an elegant yet efficient solution by fitting a water-cooled aluminium top cover. Located directly above
the cylinder head, this huge cooling element absorbs radiant heat coming from the engine. This innovative concept results in a
significant temperature reduction of up to 59°F (15°C) - a 20% reduction! In turn, the cooler ambient temperature provides a more
fuel-efficient air supply to the engine and better combustion. To the best of our knowledge, no other marine engine manufacturer
uses such an incorporated cooling element to reduce ambient temperature in the engine space. A truly unique solution developed
by VETUS.

Engine sound reduction Cooling water circuit

People often go boating to enjoy the peace and quiet of the water. VETUS likes to add
to this experience by creating a propulsion system that performs as quietly as possible. Cooling element
The sturdy, aluminium top cover also significantly reduces the noise level. When
combined with the newly designed air filter housing, tests show a sound reduction
of approximately 5 dB(A) and ‘near silent’ operation at a cruising speed of around
2200 rpm. Those present at the test sites have all enthusiastically described the engine
sound as being incredibly more pleasant to the ear.
FEATURES
Based on customer feedback, the M-Line incorporates many features designed to make life easier for both the boat builder and
the end user.
• Service parts such as fuses and relays (A), fuel filter and fuel connections (B), impeller (C), dipstick (D), and oil filter (E) are all
easily accessible. On all M4 engines the impeller is located at the front, for even easier access
• The wiring is improved to offer easy connection and extra safety
• All M-Line engines are equipped with an electric fuel pump (F), actuated by the ignition switch B A I D
• A new air inlet filter housing attenuates the airflow and lowers the induction sound level (G)
• The heat exchanger unit has 26 improvements over earlier versions, including the construction
materials and surface treatments
• The plastic front cover enhances safety and appearance. All pulleys and belts are covered,
thereby meeting the EC Machinery Directive
• Front mounted oil and fuel filters including a bracket are available as an option, making
servicing as convenient as possible (H)
• When higher charging output is required, all M4 engines are designed to accept a second
alternator as an option (when a second alternator is fitted, the front cover is not supplied)
• All M4 engines can also be supplied as a power pack or hydraulic propulsion,
see page 27
• Furthermore, all M-Line engines can be supplied with an adaptor kit for Volvo Penta
saildrives (110S/120S and 120SB)
• The oil sump pump on all M-Line engines is already installed on the engine for easy maintenance F G E C H
• Finally yet importantly, the water-cooled top cover not only reduces engine room temperature,
but is designed to be used as a step, making it easier to move around or over the engine (I)

All these new advantages come without compromising any other features. With a range from 12 - 52 HP (9 - 37.5 kW) the
VETUS M-Line is the preferred choice for many boat builders. Do you need more reasons to choose a VETUS engine?
Customers can expect the highest level of service when choosing a VETUS engine, together with high quality and professional
advice.
All M-Line engines meet the RCD2 emission standards and some also meet the BSOII regulations.

SOLAS
For our SOLAS solutions see page 40.

16 Engines and around the engines - Want to know more? Visit www.vetus.com