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Fig. U2
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Fis. UI
It is most important tbat tbe flywbeel bousing
he correctly aligned witb tbe cranksbaft. tberefore
if a bousing bas been removed tbe greatest care
must be taken on replacement to ensure accuracy
of alignment.
For convenience in turning tbe engine it is
advisable to release (but not remove) tbe nuts
holding tbe atomisers in place when carrying out
alignment of flywheel and flywheel housing.
To Remo'fe Flywheel.
Remove the locking wire from the set screws
which secure tbe flywheel to the crankshaft flange.
Turn the engine to bring oae setscrew to tbe top.
Remove tros setscrew and screw in a stud in its
place as a temporary measure, to prevent the
tlywheel from dropping.
Remove remainder of setscrews.
Remove flywheel.
To Remo'fe Flywheel Ho~ing.
Remove flywheel.
Removal of Duts and spring washers from the
studs securing tbe flywheel housing to the cylinder
block. or back plate (if fitted) win enable the
flywheel housing to be removed.
To Refit Flywheel Housing.
Before fitting or refitting flywheel housing
ensure that the mating faces of the cylinder block,
or back plate (when fitted) and housing are per-
fectly clean and free from bum.
Put the housing on to the studs, replace spring
washers and nuts. Tighten nuts evenly, do not
overtighten so as to allow adjustment.
Alignment of Flywheel Housing Bore.
"
Secure the base of an indicator stand to the fiange
,
of the crankshaft.
\
Set the needIe of the gauge to the interior of the
bored hole in the fiywheel housing. (See fig. UI).
i
Turn tilt crankshaft and check that this hole is
~ntral.
The housing is adjusted until the bored
hole is central with the crankshaft within the
following limits (total indicator. reading).
Diameter of Houslng Bore
~x. Allowance (T.I.R.)
Up to 14-1: in
0.006 in
(362 mrn)
(0,15 mm)
14-1: to 2Ot in
0.008 in
(362 to 511 mm)
(0,20 mm)
2Ot to 251 in
0.010 in
(511 to 648 mm)
(0,25 mm)
251 to 31 in
0.012 in
(648 to 787 mm)
(0,30 mm)
Alignment of Flywheel Housing Face.
With the base of the indicator stand still secured
.,
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