LUBRICATION
SYSTEM
SECTION AIO
ANTI-DRAIN
VALVE
A
The
anti-drain valve
Is
situated
In
the
crankcase
centre
section adjacent
to
the
oil pump housing.
The purpose of
the
valve
Is
to
prevent
oil draining
through from
the
feed side of
the
pump
when
the
engine
Is
stationary
overnight,
or
when
the
pump
has
suffered a
great
deal of
wear.
If
this condition
Is
evident (Indicated
by
voluminous
smoke
from the
exhaust), It
must
be assumed
that
the
ball
of
this
valve
Is
sticking,
or
Is
being held off Its seating
by
some means.
To
clean
the
bail and spring, hold the
cupped hand beneath
the
valve,
remove
the
plug
from
the
crankcase, and collect
the
ball and spring.
(Fig.
AS).
Wash
these
carefully
In
kerosene
(paraffin) and replace having made
sure
that
the
bail
seating
Is
free
of
foreign
matter.
Fig.
AB.
Anti-drain
valve
SECTION
All
CONTACT
BREAKER
LUBRICATION
The contact
breaker
Is
situated
In
the
timing cover,
and It
Is
Imperative
that
no
oil from
the
engine
lubrication system reaches
the
contact breaker
chamber. For this purpose,
there
Is
an oil seal at the
back of the contact
breaker
unit, pressed Into the
timing cover. However, slight lubrication of the
cam
spindle
at
the
slot
K and
auto
advance pivots L
Is
necessary. Also lubricate
the
moving
arm
of the
contact breakers at pivots
J,
with
one
spot
of
engine
011.
On Initial assembly
the
three
felt lubricating wicks
are
Impregnated with Shell Retlnax
"A"
grease.
and
at
Intervals of 3,000 miles,
three
drops
of clean
engine oil should be applied
to
each wick,
In
ordereo
lubricate
the
cam and nylon heels.
If
this operation
Is
not carried out, premature
wear
will occur
on
each of
the
nylon heels.
The cam spindle must be lubricated with
one
drop
of clean engine oil
at
the
same time. Similarly, one
drop of oil must be applied
to
governor
pivots "M"
(Fig.
A.9). Check
that
the
governor
weights
move
freely, and
that
If
the
cam
"K"
Is
turned
by hand
against
the
spring tension and
then
released. the
weights
are
seen
to
open
and close.
Fig. A9.
Contact
breaker
lubrication
points
A11
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