The Engine. .
The recommended lubricants are of the correct quality and viscosity
for our units. The matter of the proper grade of oil is very important
both in relation to the pump used to circulate the oil. and the gauge to
register the pressure; if a very thick oil were used on a cold day. the pump
might be strained or the gauge broken. . .
After the first 500 miles. drain the original oil from the reservoir by
removing the plug in the bottom. while the engine is hot, and refill with
new oil. The sump capacity is half a gallon.
After the first re.filling it is
advisable to change the oil in the
engine after every 2.000 to, 3.000
miles.
Always inspect the level of the
oil, and add enough to fill to the
correct level before starting on a
long journey. The oil level should not
be allowed to go below 1 inch on
the bottom of the dipper rod. It is
advisable to wipe the dipper rod
before taking the reading of the level.
and the reading should only be taken
when the engine is not running and
the car is on the level ground.
After refilling with fresh oil to Tbe Oil Dip Rod.
the correct level. run the engine for a few moments to check that the OIl
is c;'culating and that the oil pressure gauge reading is correct.
Cleaning the Jets.
The front and rear main bearings of the engine are of the ball and
roller type, and the oily vapour in the crankcase is quite sufficient to
lubricate these. The centre main bearing and the camshaft bearings
are lubricated under pressure from the pump.
The pistons are lubricated by the oily vapour. and lubrication of the
big.ends is effected by catching oil from the pump.fed jets in pockets
on the crankshaft webs.
It is advisable to make sure these jets are always clear. and to do so
the plugs over the jets (A) (see illustration on page 35) should be occasion.
ally removed and a piece of stiff wire. not above 18 gauge (I, in. diameter)
inserted through the jets. This prevents foreign matter accumulating in
the oil jets and choking them.
Every 3.000 miles remove the oil reservoir. The gauze oil tray will then
be accessible for removal. Scrupulously clean the gauze and remove all
dirt from inside the reservoir and replace them. Carefully remake the
joint with the packing washer, covering both sides of it with gre!"e. When
tightening up the nuts holding the oil reservoir to the crankcase, do not
pull up one nut tight, but tighten each nut equally, a little at a time.
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See that the drainplug is screwed up tight, then. fill the crankcase with oil
to the maximum level as shown on the dipper rod. About half a gallon
will be enough to fill. '
Oil Gauge.
The oil pressure gauge records in pounds per square inch.
The dial will probably record the maximum pressure when the engine
i. started from" cold" but as the engine warms up in running, so the oil
will become more fluid and the pressure may fall quite Iow-it may even
record only one pound. This. however, is sufficient because if the oil i.
circulating that is all that is necessary.
A sudden rise to a higher pressure reading than normal, while the car
is running with .a warm engine, may be an indication of an obstruction
in the oiling system. This fault may be remedied by cleaning the oil jets
(see page 35). .
A flickering finger may be an indication 01 a serious deficiency of oil
in the crankcase, a damaged oil pipe line or a loose gauge' pipe connection
Any unusual difference from normal registration should be quickly
noticed and the cause of the variations ascertained and set right.
j
Gearbox.
In the angle formed by the floor and the raised portion which is over
the gearbox, on the near side, is a movable cover secured by a screw.
Unscrew and remove this cover. Immediately below it is the plug of the
hole through which oil is poured into the gearbox.
Carefully follow the lubrication chart for oil most suitable for the
gearbox. Do not use thick gear oil, otherwise seizure of bearings may
result.
Maintain the oil at the correct level, i.e., bottom of the filler plug hole.
The gearbox should be drained. and refilled to the correct level after
the first. 1,000 miles and every 6,000 miles subsequently. Quantity
approximately It pints.
Clutch.
The clutch surfaces being of a
fabric material must be kept Ire~ from
oil and grease, or the clutch will fail
to grip. Lubricate the operating ring
lightly through the oiler, as shown
on the sketch, once a week.
The oiler can be seen from the
driving seat when the rubber mat has
been turned back. Press the clutch
pedal down a little and the oiler will
move forwards to facilitate lubri.
cation.
Austin Seven Flywheel
A-FI,wh,d. B-Fl,whool Timing Muk
C-Clu"h Rin, Lubri,",o,.
38
39
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