Engine Anti-Vibration Mounts - Barrus Shire 39 Manual

Shire 39, 43 & 49
8. Shaft Connection and Propeller Selection
• Some type of flexible coupling must be used to connect the gearbox output flange to
the propeller shaft flange.
• Please note, underperforming engines will not be covered under warranty if the cause
of the poor performance is found to be the use of an inappropriate propeller.

9. Engine Anti-Vibration Mounts

• Ensure that the engine feet do not end up at the top of the thread on the engine
mounts, this puts undue pressure on them and can result in excessive engine
movement and premature mount failure. If this is a problem put steel packing plates
under the mounts. Packing plates 25mm thick are available: Order RDG3906 Engine
mount spacer. Alternatively they can be manufactured locally.
• Ensure that the engine has been installed for at least 24 hours before shaft alignment
is checked, to allow the mounts time to settle under the engine weight.
• Ensure that the anti-vibration mount centre screw is sufficiently raised so as not to
touch the engine bed. If this occurs, excessive engine vibration will be experienced
through the hull.
• For best results, fit the front AV mounts into the front holes in the engine rails. If the
RDG603A63 - Issue 10
Calorifier Connections on Engine
Outlet
Figure 16: Calorifier Connections
Inlet
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