Sunbeam ALPINE I SERIES: APLINE II SERIES, Workshop Manual

Page: 82 / 413

Page 44
reconditioning by the manufacturers.
However,
if
suitable equipment Is available, the starter ring may
be removed and replaced by adopting the following
method.
Place flywheel in a suitable container of clean COLD
water, supporting the assembly In the container by
placing three or four metal blocks under the starter
ring. Arrange the flywheel assembly so that it Is
partly submerged in water, starter ring uppermost
(i.e., the complete starter ring must be
above
the
water line, and it is recommended that the ring
itself be approximately -&-· (5 mm.) clear of the
water level, as shown In Fig. 50.
Heat the starter ring evenly round its circumference
(using an oxy-acetylene welding torch) thus
expanding the ring, which will allow the flywheel
itself to drop out. Remove flywhael from the water
and thoroughly dry it.
Check height of securing lip by means of straight­
edge and feeler gauge. This dimension should be
·OOS· ( ·203 mm.). If the height of the lip is greater
than -oos· (·203 mm.) it must be reduced by means
of a lathe. In carrying out this operation it Is most
Important that the flywheel is located by the dowel
holes.
Check the surface of the flywheel on which the
clutch driven plate operates. If badly scored, or
worn, regrind to restore smooth surface.
FLYWHEEL RESTING IN
COLD WATER TO THIS LEVEL
-------------
COLDWATER
Fig. 50.
Remo�ing worn flywheel rinf rear
Ensure that registering faces of flywheel and starter
ring are clean and free from burrs.
To fit a new starter ring after completion of the
operations as detailed above, proceed as follows:-
Heat the new gear ring by suspending It from
wire hooks in a container of clean engine oil
which has been heated to 220 ° C. (428 ° F.) until
the ring has attained the same
temperature as
the oil
(See
Fig. 51 ).
WSM.124
Section B (Engine)
To eliminate the possibility of fire,
keep
the
container covered by a metal lid to prevent
flame from reaching the surface of the oil.
Do not allow start�r ring (or thermometer) to
rest on bottom of container or a false
tempera­
ture may result.
THERMOMETER ENGINE OIL HEATED �i°1P���:DRl
1
�?
to lO()OC.
ENGINE OIL
Fig. 51.
Heating flywheel ring gear
Lift the heated ring from the oil by means of the
wire hooks and quickly wipe away surplus oil
with a lintless rag.
Place the new ring in position on the flywheel
with chamfered sides of teeth to the clutch side
of the flywheel.
Make sure that the ring is completely over the
securing lip and bedding against its locating face.
On cooling, the ring will contract and thus
firmly grip the flywheel.
FLYWHEEL CENTRE BEARING
To remove and refit
The clutch spigot bearing Is of self-lubricating bush
type, and a push fit in crankshaft end recess. To
remove the bush for replacement, use a small
internal type extractor. If the old bush is too tight
to remove by this method, thread it with an -11-· tap,
when It may be removed by screwing in an ordinary
ft" bolt. An alternative method of removing an
old bush is to fill it with grease, then Insert a close
fitting piece of steel bar. A hammer blow on the
end of the bar will then cause the bush to come out.
It is most essential that the new spigot bush should be
soaked
In
engine oil for
24
hours
before
fitting,
preferably at room temperature.
The new bush should be pressed into position until
flush with the rear face of the crankshaft flange.
.J