Bentley R Type - Page 47

44
Tnn
'R'
TvpB
Bsurr,BY.
The
car
must
on
no account
be
run
if
the
gauge reads
as low
as
this
continuousl'y.
Such
a
persistently
low
pressure,
which may
be accompanied
by
fluctuations
of the
gauge
needle,
may
be
due to
one
or
rnore
causes.
In the
first
place, it
should
be ascertained
that
there
is
sufficient
oil
in
the
sump-by
referring to
the
oil
level
indicator.
If this
is found
to be
in
order,
the
trouble
may
be due
to a
particle
of
foreign
matter
having
lodged
on one
of
the
relief
valve seatin-gs
and
preienting
the
valve from
closing.
If the
latter
is suspected,
the
relief
valve should
be inspected
and
cleaned
as directed
on
page
42,