Morgan PLUS FOUR, Owner'S Handbook Manual

Page: 51 / 74

48
Engine Coolant Expansion Tanks
Cooling System
The coolant expansion tanks and coolant systems are situated under the bonnet.
Under the left hand bonnet is the engine coolant circuit and under the right hand
bonnet is the low temperature intercooler circuit. Both coolant systems should
be filled to half way up the tank with HT-12 coolant and should be inspected only
when the engine is cool. It is essential that the engine is supplied with sufficient
water/HT-12 mixture at all times. In an engine of this type, HT-12 must be present
in the water at all times. HT-12 should be kept at a minimum of 50
%
by volume.
WARNING Only remove the coolant filler cap when the engine is cool,
otherwise the escaping steam and boiling water may cause serious
scalding and injury.
WARNING Coolant fluids are dangerous; keep out of reach of children.
Swallowing coolant may damage health resulting in death or serious
damage to the body.
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 be examined for tightness and damage. Any persistent loss of coolant
should be indicated to a Morgan service agent at the earliest opportunity.
NOTICE: When the expansion tank is filled above half, water would be
discharged through the clear overflow pipe on the neck of the expansion tank
when the engine is hot.
Electric Fans
Two electric fans are positioned behind the radiator and an auxiliary fan in front.
These are operated by a temperature switch in the engine and controlled by
the ECU. The fan speed will automatically vary to maintain the correct engine
temperature. As the temperature rises in traffic, the fans will then cut in and cut out.
If there is any doubt about the operation of the fan system, consult a Morgan Dealer.
WARNING Do not allow tools, hands or clothing to come into contact
with the fans. Fans may operate without warning, even with the ignition
switched off!
Windscreen Washer
The Windscreen washer bottle filler is located under the left hand bonnet. Pull off
the filler cap, top up with windscreen cleaner then refit the filler cap. In cold weather
it is recommended to use an antifreeze and windscreen cleaner, to prevent freezing
and aid cleaning.
NOTICE: Do not use engine coolant antifreeze, only specially prepared solutions
for washer systems. Follow manufacturer’s instructions carefully.