4) Using a radiator cap tester, check system and radiator cap (1)
for proper pressure holding capacity. If replacement of cap is re-
quired, use proper cap specified torque for this vehicle.
Pressure holding capacity:
90 kPa (0.9 kg/cm
2
, 12.8 psi)
M/T
. . .
110 kPa (1.1 kg/cm
2
, 15.6 psi)
A/T
. . .
NOTE:
After installing radiator cap to radiator, make sure that its
ears (2) are in horizontal direction as shown. If not, tighten
it securely till that direction is obtained.
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 radiator 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
radiator cap while engine and radiator are still hot.
Scalding fluid and steam can be blown out under
pressure if cap is taken off too soon.
2) With radiator cap removed, run engine until upper radiator
hose is hot (this shows that thermostat is open and coolant is
flowing through system).
6B-6
ENGINE COOLING
SH410