Engine Mounting; Alignment - Drives, Flanges, Flexible Drives - Beta Marine BV1305 Operation And Maintenance Manual

Section 3
INSTALLATION RECOMMENDATIONS
The installation details contained herewith are basic guidelines to assist installation, due to 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.

ENGINE MOUNTING

To ensure vibration free operation, the
engine must be installed on substan-
tial beds, extending as far forward
and aft as possible and well braced
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
ALIGNMENT
Alignment must be checked for
parallel (A) and concentric (B)
misalignment using a set of feeler
gauges.
A
• 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 shall be effectively
shielded.
and extend the life of the flexible
mount. If necessary, fit spacer blocks
below the mounts.
A flexible coupling should be fitted.
Flexible Mount
Flexible couplings do not accom-
modate bad alignment. The mating
faces of the gearbox and tailshaft
must be checked for alignment, they
must be parallel and concentric to
within 0.005" (0.127mm).
To obtain accurate alignment the
flexible mountings must be adjusted
until alignment is attained, and the
mountings must be locked in
position.
• Engine parts and accessories that
require frequent inspection and /
or servicing must be readily
accessible.
• The insulating materials inside
engine spaces shall be not
combustible.
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.
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!!
Once mounts are tightened,
alignment must be re-checked.
Coupling can now be fitted in
accordance with instructions
supplied with coupling.
B