Bentley R Type - Oil Pump; Oil Filter

Tun
'R'
TypB BeNrrBy.
Oil Pump.
A
gear
type pump
mounted
in
the
lower
half of the crankcase is
driven
by means
of a vertically-mounted
shaft
and
skew
gears from
the centre of the
camshaft.
A coupled
extension
of
this shaft
also
drives the ignition distributor.
The oil
intake
from
the
sump is
of the floating gauze filter type,
ensuring
the
collection of
clean oil, free
from
sludge.-
Oil
is
drawn by
the
pump
through
the floating
intake and
delivered
direct to the
full-flow
fiIter.
oil Filter.
The
full-flow
filter
is fitted
on the right-hand
side
of
the crankcase
as shown in
Fig.
8,
and,
as
previously
stated,
oil is fed
direct
from the
pump
to the filter,
and, after passing
through
the filter, is
returned
via
the relief
valves
to the
main oil gallery,
d.s
shown in the diagram-
matic
illustration,
Fig.
6.
Every
5,ooo
miles,
as
directed on
page
3o,
the filter
element should be
discarded
and replaced with a
new
one.
It is not practicable
to clean
the
felt element, and no
attempt
must
be
made to
do so.
As this
operation entails a
certain amount of
dismantling,
it is
suggested
that
this
periodic
maintenance
should
be
undertaken
by
u
qualified
Service Station.
To
remove the
element,
first,
completelyslacken
off the
dynamo
adjustment.
Then
remove
lock
plate
securing
domed
nut
(1,
Fig.
8), unscrew
the
central
fixing bolt
to
release
the filter
bowl and
pass
the
bowl
forward and
upward
between
the
dynamo
and
valance
plate.
Remove
the
canister
from
the
bowl and dismantle by
un-
screwing
the
knurled
nut
from
the
bottom cover. Extract
the
felt element and
the two
felt
washers, discard and re-
place
with new
ones.
1.
2.
Fig.
8.-OlL FILTER.
Domed
nut
on
centre
bolt.
Filter
bowl.