Engine Mounting - Beta Marine Beta 10 Operator's Maintenance Manual

Section 1
Installation Recommendations
The installation details are basic guidelines to assist installation, however due to the great diversity of marine craft it is
impossible to give definitive instructions. Therefore Beta Marine can accept no responsibility for any damage or injury incurred
during the installation of a Beta Marine Engine whilst following these guidelines.
• All engines shall be placed within an enclosure separated
from living quarters and installed so as to minimise the
risk of fires or spread of fires as well as hazards from toxic
fumes, heat, noise or vibrations in the living quarters.
• Unless the engine is protected by a cover or its own
enclosure, exposed moving or hot parts of the engine that
could cause personal injury must be effectively shielded.
• Engine parts and accessories that require frequent
inspection and / or servicing must be readily accessible.
• The insulating materials inside engine spaces shall be
non-combustible.
• Ventilation - It is important that the engine compartment
has adequate ventilation, and this is your responsibility.
If there is no ventilation the engine can overheat and
damage can be caused. As a general statement an engine
will produce radiated heat - approximately equal to
the engine output power. Also the 45 & 100 amp battery
charging alternators create lots of heat. (A symptom of
overheating problems is often black belt dust).

Engine Mounting

To ensure vibration free operation, the engine must be
installed and correctly aligned on substantial beds, extending
as far forward and aft as possible, well braced and securely
fastened to form an integral part of the hull.
The engine must be installed as low as possible on the
flexible mount pillar stud. This will limit vibration and extend
the life of the flexible mount. To assist with engine
replacement we offer 'Special Engine Feet' manufactured to
your dimensions, as an optional extra to suit your existing
engine bearers and shaft alignment/installation.
Warning
(1) Do not set the engine feet high up the flexible mount
pillar stud. This will cause excessive engine movement
and vibration. Pack under the flexible mount with steel
shims securely bolted into the engine bearer.
If you have any doubts about the temperature of your
engine compartment please check with a thermometer
on a hot day, the maximum temperature in the engine
compartment should less than 60°C - the cooler the
better! Engine compartment ventilation is normally best
with two holes; an inlet allowing colder air to enter near
to the alternator and drive belts and a second outlet
(a third bigger than the inlet) for the hot air to rise and
ventilate out from the top of the engine compartment.
Adequate ventilation must be included with all
installations.
• General - Keel Cooled Engines, sometimes overheating is
caused by:
(a) Not fully venting the engine cooling system of air. It is
necessary to remove all air from the cooling system -
including the "skin" tanks and (if fitted) the Calorifier and
1
/ of
associated piping.
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(b) Incorrectly sized "skin" tanks that have been sized for
'usual' canal use, rather than maximum engine output
that can sometimes be required on fast flowing rivers.
An additional "skin" tank may need to be fitted; please
refer to our website.
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(2) The pillar stud on the flexible mount is secured into
position by the lower locknut, do not forget to tighten
this. Also ensure that the stud is not screwed too far
through the mounting body so that it can touch the
bearer. This will cause vibration and knocking noises
which are very hard to find!
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