P
LUBRIfJATION----~~------------
Section
P.12
PRIMING THE
ENGINE
OIL PUMP
To facilitate priming
of
the
oil pump, which is
necessary
after
oil drainage. a priming plug was
introduced
on
the
oil
pump
body
at
Engine No.
X
PAG
tTD2/20972.
fig. P.22.
The location of
the
priming
plug on engines subsequent
to
No, XPAG/TD2j20971.
When
engines so
equipped
are
started
up after an
oil change
or
after having remained
stationary
for
a
long
period.
this plug should be
removed
and
the
engine run
at
1,500
to
2,000 r.p.rn.
without
load until
oil appears at
the
plug orifice.
Using this
procedure
there
Is no actual
need
to
prime
the
pump.
but
it
must
be
understood
that
p.e
failure
to
remove
the
plug may
prevent
the
pump
from
operating
due
-to
the
formation of an air lock.
The
later
pumps fitted from Engine No, XPAGfTFf
31263
are
provided
with
an addltl 0 nal alr release
hole in
the
pump body which
renders
the
pump
self-
priming, and
these
engines
require
no special priming
attention.
Fig. P.23.
The component parts
of
the
dry-type
air cleaners
fitted to each individual carbu
retter
of
the
M.G. Midget
(Series"
TF
")
cars.
It is Im
porta
nt
to
remem
ber th at
proper
functloning
of
the
pump is
dependent
on
the
air-tightness
of
the
suction circuit, particularly at
the
joint
between
the
pipe from
the
internal
suction
filter and
the
sump.
The pipe is of
stu
rdy construction, and if
there
is any
fault in its alignment it is unlikely
that
it can be
tightened
onto
its seating evenly by
the
relatively
small retaining nuts. The pipe should carefully be
set
so
that
the
Joint
gasket
is nipped evenly
over
the
whole
area
of
the
joint.
M.G. Midget. Issue 3 (H & E)
8296~1
/54
Wishvilles Classic
Automobile Library
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