Suzuki WagonR+ RB310 Service Manual page 2563

6B-6 ENGINE COOLING
4) Using a pressure tester (1), check system and radiator cap (2)
for proper pressure holding capacity 110 kPa (1.1 kg/cm
15.6 psi). If replacement of cap is required, use specified cap 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.
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 counterclockwise.
WARNING:
To help avoid danger of being burned, do not remove ra-
diator cap while engine and radiator are still hot. Scald-
ing 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).
3) Stop engine and drain coolant.
4) Close drain plug (1). Add water until system is filled and run en-
gine until upper radiator hose is hot again.
5) Repeat steps 3) and 4) several times until drained liquid is nearly
colorless.
6) Drain system and then close radiator drain plug tightly.
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