Engine Alignment - Barrus SHIRE 14 70 WB Manual

Alternative mounting position if
engine compartment space is
Normal mounting position.
7.

Engine Alignment

•
The gearbox output shaft flange and propeller shaft input flange must be almost
perfectly aligned. A maximum of 0.05mm (0.002") misalignment in any plane is
acceptable. Ensure alignment is rechecked after the first 4 hours of running, at the
end of the first month and annually thereafter.
•
If the engine is out of alignment it will result in excessive vibration and possible
damage to the stern tube and propeller shaft.
•
Boats that are fitted with fully flexible drive couplings should still have the engine and
shaft alignment as close as possible. A dummy shaft may be required for this
purpose.
(Note: some types of flexible shaft couplings require the input and output to be
misaligned, check with the coupling manufacturer's installation instructions).
RDG603A11 - Issue 8 - Shire 14 70, 85 & 130 WB Owners Manual
restricted.
Figure 3-6: Anti-Vibration Mount Installation Points
Page 16 of 50