ENGINE COOLING 6B-7
4) Using a pressure tester (1), check system and degassing tank
cap (2) for proper pressure holding capacity 110 kpa
(1.1 kg/cm
2
, 15.6 psi). If replacement of cap is required, use
proper cap specified for this vehicle.
NOTE:
After installing degassing tank cap to degassing tank, make
sure that it is closed certainly as shown in figure. If not, turn
cap more as shown figure.
5) Tighten hose clamps and inspect all hoses. Replace hoses
whenever cracked, swollen or otherwise deteriorated.
6) Clean frontal area of radiator core.
COOLING SYSTEM FLUSH AND REFILL
1) Remove degassing tank cap when engine is cool.
Turn cap slowly to the left until it reaches a “stop” (Do not press
down while turning it).
Wait until pressure is relieved (indicated by a hissing sound)
then press down on cap and continue to turn it to the left.
WARNING:
To help avoid danger of being burned, do not remove de-
gassing tank cap while engine and radiator are still hot.
Scalding fluid and steam can be blown out under pres-
sure if cap is taken off too soon.
2) With degassing tank cap removed, run engine until upper radia-
tor hose is hot (this shows that thermostat is open and coolant
is flowing through system).
3) Stop engine and open radiator drain plug (1) to drain coolant.
4) Close drain plug.
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