RDG603A73 - Issue 3
Page 22 of 96
connection on the top of the thermostat housing. The second hose is connected
between the larger internal diameter outlet on the right hand side of the tank and the
lower
½“ hosetail connection on the engine engine thermostat housing. The hoses
MUST
be connected correctly
•
The connections for the Header Tank are shown on (
•
A constant rise on pipework is required to prevent air locks
Connections on Engine
Connections on Header Tank
Shire 43 WB &
49 WB
Figure 10: Header Tank Connections
4. 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.
5. 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.