ENGINE
tighten to 20-24 lbs.
ft.
Finally
tighten the two nuts attaching the inlet
to the exhaust manifold to
16---l8
lbs.
ft..
(xli)
Fit the Purolator oil filter with packing
to left-hand side of cylinder block.
It
is located by a tubular stud and secured
by three bolts with lock washers. The
tubular stud accommodates the oil
pressure gauge pipe. This part is
fitted to the stud with a copper washer
either side of the banjo connection
and secured by a cap nut. The pipe is
also attached by a clip to the rear stud
of the fuel pump.
(xlii)
Fit fuel pump and packing and secure
with
two nuts and lock washers. The
rearmost stud of this mounting also
accommodates the clip steadying the
oil pressure pipe.
(xliii) Connect fuel pipe from pump, clipping
it to the thermostat housing, also the
suction tube to the distribution union.
The latter, a narrow section tube, is
strapped to the fuel pipe.
(xliv) Apply oil to the rocker arms and valve
tops. Ensure that the rocker cover seal
is in position and is in good order and
secure cover to top of engine by the two
nyloc nuts, each bearing on a fibre
and plain washers. Ensure that the
rocker cover does not foul the cylinder
head nuts at
the
right-hand side of the
engine.
(xlv) Offer up the clutch driven plate and
housing to flywheel, ensuring first
that they are
in
good condition and the
release levers of the housing are cor-
rectly adjusted. (See "Clutch" Section.)
Settle the housing on the two dowels
and secure the flywheel with six set-
screws and lock washers, centralising
the clutch driving plate with a dummy
constant pinion shaft or mandrel.
(xlvi) Ascertain that the gearbox, clutch
release bearing and clutch operating
shaft are in
working order before
assembling to engine. Offer the gear-
box
up to the engine, locating it on
two dowels and three studs, and secure
with six bolts, nuts and lock washers,
and three nuts and washers on the
studs.
37
(xlvii) The engine and gearbox can be fitted
to the chassis with the use of a derrick
or moveable crane. Allow the rear
extension of the gearbox to be lower
than the sump and by slowly lowering
the whole
u@t the mounting points can
be found
;
utilise a rope sling fitted as
shown in Fig. 3
1.
(xlviii) The attachment of the engine and
gearbox to the chassis is the reversal
of the detachment procedure.
(xlix)
The engine and the gearbox must be
refilled with oil and the radiator with
water before the car is used.
22.
IGNITION
SYSTEM
Notes on
Sparking Plugs
When sparking plugs are removed
from the engine, remove their gaskets
with them. Place the plugs and gaskets
in a suitable holder,
identifying
each
plug with the cylinder number. The
tray shown in Fig.
38
is a simple con-
struction with holes drilled to admit
the upper ends of the plugs. Place a
new plug of the proper type beside the
others to afford a comparison of
relative condition of the plugs in use,
to the new plug.
Look for signs of oil fouling, indicated
by wet, shiny, black deposit on the
insulator (Fig. 39). Oil pumping is
caused by worn cylinders and pistons
or gummed-up rings. On the suction
stroke of the piston, oil vapour from
the crankcase is forced up past the
worn rings, where it fouls the plugs
and causes sticking valves, with re-
sultant waste of petrol. On the com-
pression stroke, the mixture of oil and
petrol vapour is forced past the rings
into the crankcase again, contaminating
the oil and turning it black with carbon.
Carbon deposists in the combustion
chamber are formed from burning oil
vapour and cause
"
pinking."
Next, look for petrol fouling indicated
by a dry
fluffy,
black deposit (Fig. 401.
This is caused by many things-
faulty carburation, ignition system,
defect in battery, distribution coil
01
condenser, broken or worn-out cable.
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