Radiator Cleaning; Radiator Inspection; Check Radiator Cap - Toyota 22R-E Service Manual

ENGINE – COOLING SYSTEM
(a) (with A/C)
Idle–up hose
(b) PCV hose
(c) Vacuum hoses
4. FILL WITH ,COOLANT
5. START ENGINE AND CHECK FOR LEAKS
RADIATOR

RADIATOR CLEANING

Using water or a steam cleaner, remove mud and dirt
from the radiator core.
NOTICE: If using a high–pressure type cleaner, be car–
eful not to deform the fins of the radiator core. For
example, keep a distance of more than 40–50 cm (15.75
–19.69 in.) between the radiator core and cleaner nozzle
when the cleaner nozzle pressure is 2.942–3.432 kPa (30
2
–35 kgf/cm . 427–498 psi).

RADIATOR INSPECTION

1. CHECK RADIATOR CAP

Using radiator cap tester, pump the tester until relief
valve opens. Check that the valve opens between 174
2
kPa (0.75 kgf/cm , 10.7 psi) and 103 kPa (1.05 kgf/
2
cm , 14.9 psi).
Check that pressure gauge does not drop rapidly
when pressure on cap is below 59 kPa (0.6 kgf/cm
8.5 psi).
If either check is not within limit, replace the radiator
cap.
EG1–229
2
,