RDG603A31- Issue 4
Page 25 of 88
Connections on Engine
Shire 60, 65
Figure 12: Calorifier Connections
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
engine room space is a problem the mounts can be fitted slightly further back in the
Inlet
Outlet
