Suzuki GA413, Service Manual

Page: 388 / 1246

4) Using a pressure tester, check system, radiator cap for proper
pressure holding capacity 110 kPa (1.1 kg/cm
2
, 15.6 psi). If re-
placement of cap is required, use proper cap specified for this
vehicle.
NOTE:
After installing radiator cap to radiator, make sure that the
ear of cap lines is parallel to radiator.
5) Tighten hose clamps and inspect all hoses. Replace hoses
whenever cracked, swollen or otherwise deteriorated.
6) Clean frontal area of radiator core.
7) Using a pressure tester, check cap of thermostat cap for proper
pressure holding capacity 90 kPa (0.9 kg/cm
2
, 12.8 psi). If re-
placement of cap is required, use proper cap specified for this
vehicle.
1. Pressure tester
2. Radiator
3. Radiator cap/Cap (included in thermostat cap)
CAUTION:
When removing cap of thermostat cap, drain coolant
from system in advance.
COOLING SYSTEM FLUSH AND REFILL
1) Remove radiator cap when engine is cool:
Turn cap counterclockwise slowly 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 counterclock-
wise.
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).
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.
CAUTION:
The cap of thermostat cap must not be removed.
3) Stop engine and drain coolant.
4) Close drain plug. Add water until system is filled and run engine
until upper radiator hose is hot again.
5) Repeat steps 3) and 4) several times until drained liquid is near-
ly colorless.
6) Drain system and then close radiator drain plug tightly.
1. Radiator
2. Radiator drain plug
6B-6 ENGINE COOLING