Installation Manual
N40475 Chapter 2
Page 5
Flexible engine mounts
It is recommended that exible engine mounts should
be used for all applications. The principal purpose of
the mounts is to reduce the transmission of vibration
from the engine to the hull, but another valuable
advantage is that the mountings reduce the shock
transmitted from the hull to the engine under adverse
weather conditions and also prevent the engine being
inadvertently used as a structural part of the boat,
due to exing in the hull, a function the engine will not
satisfactorily full.
Figure 5 shows the exible engine mount for most
applications.
Note: refer to the installation drawing for specic
dimensions, which are for the mount in the unloaded
condition.
To adjust the height of the mount, use the adjuster nut
and bolt (2) against the pad (3) to introduce shims (4).
A maximum of thirteen shims per mount can be used,
eleven at 1mm thick and 2 at 0.5mm thick.
Radially slotted holes (5) can be utilised to obtain the
optimum position.
Engines used with unusual drive arrangements, such
as ‘V’ drives when integral with the engine unit, pose
special mounting problems and recommendations as
to the most suitable mounting arrangement can be
made for specic applications.
Note: For transmission ratios above 2:1 or use
in extreme conditions, please contact your local
distributor for advice.
Installation drawings are available showing the
preferred mounting arrangements when using a
variety of gearboxes and applications.
Figure 5