GENERAL UPKEEP-Lubrication
Carburettors
Every 6,000 miles (10,000
km.)
unscrew the brass hexagon plug
in the top of each of the carbur-
ettors and top up with current
engine oil to the level of the
inner hollow shaft. Apply oil
also to the throttle linkages on
the engine, do not oil the bear-
ings of the transverse rod at-
tached to the scuttle as this will
seriously deteriorate the sealing
composition.
The
Oil Cleaner
The oil cleaner has been de-
signed to filter the oil to a very
fine degree and the only atten-
tion it requires is to see that the
filtering cartridge
(B)
is re-
moved and that a new replace-
ment cartridge is fitted at periods
not exceeding 6,000 miles
(10,000
km.).
Later models
employ a
"
full-flow
"
cleaner,
and since a very
"fine"
filter
Fig.
4.
Oil
Cleaner
"
full-flow"
type.
cartridge is fitted it is important that this operation is carried out,
otherwise, as the filter becomes choked,
unfiltered oil will be passed to
the engine via the balance valve in
the cleaner. To renew the cartridge,
unscrew the securing
bolt and remove the container, the cartridge can
then be withdrawn. On some models it may be necessary to unclip and
swing the crankcase breather tube rearwards to provide sufficient room
for container removal.
Wipe out the container to remove foreign matter trapped by the filter,
using a non-fluffy cloth, and inspect afterwards to make certain that no
cloth fibres remain.
It may be desirable to discard the old container washer
(A),
replacing it
with a new one each time the cartridge is renewed. When re-assembling
the container, ensure that the washer is correctly positioned in the groove
in the filter body. Do not tighten the bolt
(C)
more than is necessary
to obtain an oil-tight joint.
Approximately one pint of oil will be lost due to the removal of the con-
tainer, and the sump should be topped up with new oil after assembly.
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