Owners Manual

REGULAR
EVERY 5,000
MILES
(8,000 Km.)
Decarbonising, Valve Grinding and Tappet Adjustment
This attention may
not
be needed so frequently on
cars used for long journeys. As a general rule, a falling
off
in
engine power with pinking indicates when de-
carbonising
is
due.
This operation entails such preliminary dismantling
of
components as the carburetter, manifolds, cylinder
bead and push rods.
The
correct valve clearance,
measured between the rocker arm and the valve stem,
is
. 015in., with the engine
hot
or
cold.
Shock Absorbers
All
the
shock absorbers fitted to the A40 models,
with the exception
of
the A40 Sports fronts, are
of
Arm-
strong manufacture. Check
the
fluid levels
and
top
up
if
necessary. The correct level is
just
below the filler
plug threads. Carefully clear away all
road
dirt and grit
from the vicinity
of
the filler plug before removal. Use
only Armstrong Super (Thin) Shock Absorber Oil.
Girling shock absorbers are fitted
to
the A40 Sports
front suspension. They
must
be removed from the
chassis before inspecting
the
fluid levels
or
topping
up
with Girling Piston Type
Thin
Fluid.
EVERY 6,000
MILES
(9,600 Km.)
External Oil Filter
Take off the old filter and replace it with a new unit.
Use only "A.C. Sphinx" type
ARIC
or
Purolator
Micronic type
MF2001.
EVERY 10,000
MILES
(16,000 Km.)
Contact Breaker Points
Clean the contact breaker points. Cleaning
of
the
contacts is made easier
if
the contact breaker lever,
which carries the moving contact, is removed.
To
do
this, slacken the nuts
on
the terminal post
and
lift off
ATTENTIONS
xxi
the spring, which
is
slotted to facilitate removal. Before
replacing, smear the pivot
on
which the contact breaker
works, with clean oil.
Check the contact breaker setting, re-set
if
necessary.
The
correct gap
is
.Ol4-.016in.
Starter Commutators
Clean, also check the freedom
of
the brushes
within the holders.
Tracl>
Adjustment
Check the front wheel alignment:
1
~
-lin.
toe-in
taken along a horizontal line
at
centre height using the
wheel rims as data points.
Steering Box
Check for wear. This may be felt when the front
wheels can be moved without creating any movement
at
the steering wheel.
Clutch
Pedal Clearance
Check and adjust
if
necessary.
The
pedal should be
depressed approximately
!in.
before the clutch springs
are felt
to
be under compression.
Oil Sump
Remove and clean the sump, also the oil pump
strainer gauze.
Front and Rear Hub Bearings
Check for any signs
of
wear. Details for this
operation are given in Sections H
and
K.
Ignition Timing
Check the setting
and
adjust
if
necessary.