could be caused by escaping steam or
water, do not remove the pressure
relief cap from the expansion tank
whilst the system is hot. Wait until the
system is cold, use a cloth or glove to
protect hands from escaping steam
and slowly unscrew the pressure relief
cap one complete turn, wait until all
pressure is released and remove the
cap slowly from the expansion tank.
Engine Coolant
It is essential that the engine is
supplied with sufficient water/
antifreeze mixture at all times.
In an engine of this type, antifreeze or
water additive must be present in the
water at all times. Antifreeze should
be kept at a minimum of 40% by
volume. For details of quantities refer
to Page 2.
Whenever the car is serviced and
periodically between these times, the
coolant must be checked. At the same
time it is recommended that all the
hose clips and hoses are examined for
tightness and damage. Any persistent
loss of water should be indicated to
your dealer when the car is serviced,
or before if the quantity seems high.
It should be noted that when the
expansion tank is filled above the
marking tag inside, water will be
discharged when the engine is hot. It
should not be necessary to top up
further as the system will reach its
own level.
Thermostat
The thermostat controls the water
flow to the engine. It is contained in a
housing at the front of the inlet
manifold. The top hose connects to it.
The thermostat is set to fully open at
88°C. In extreme temperatures it may
prove beneficial to use a lower
temperature thermostat. The
thermostat should be checked during
services and replaced if not operating
correctly. Never run the car without a
thermostat.
Electric Fan
This fan is positioned behind the
radiator and is operated by a
temperature switch in the cylinder
head. The fan will start to run when
the engine temperature reaches 94
0
C.
It will cut out when it reaches 86
0
C. If
the fan appears to run continuously, it
should be examined by your Morgan
dealer.
Warning: Do not allow tools, hands or
clothing to come in contact with the
fan. The fan may operate without
warning, even with the ignition
switched off!
Radiator Cap
The cap on the radiator is of the
sealed system type and should only
be removed if the radiator has been
completely drained and requires a
total refill. For normal toping-up the
cap on the overflow bottle should be
used.
Windscreen Washer Bottle
Is located under the bonnet at the rear
of the engine on the opposite side to
the steering column and is attached to
the metal front. The level must be
checked regularly, especially during
the winter. In cold weather it is
recommended to use an antifreeze
and windscreen cleaner, to prevent
freezing and aid cleaning.
Caution: Do not use engine coolant
antifreeze, only specially prepared
solutions for washer systems. Follow
manufacturers instructions carefully.
Fuel Pump and Filter
The fuel pump and filter are located in
the fuel tank. There is no
20
Plus 8 4.0
Routine
Maintenance
Routine Maintenance
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