Toyota Celica 2005 Repair Manual page 1614

Radiator Cap Tester
Reservoir Cap
30° or more
2005 CELICA (RM1131U)
COOLING − RADIATOR
ON−VEHICLE INSPECTION
1. REMOVE RESERVOIR CAP
CAUTION:
To avoid the danger of being burned, do not remove the res-
ervoir cap while the engine and radiator are still hot, as
fluid and steam can be blown out under pressure.
2. INSPECT RESERVOIR CAP
NOTICE:
If the reservoir cap has contaminations, always rinse
S
it with water.
Before using a radiator cap tester, wet the relief valve
S
and pressure valve with engine coolant or water.
When performing steps (a) and (b) below, keep the ra-
S
diator cap tester at an angle of over 30° above the hor-
izontal.
(a) Using a radiator cap tester, slowly pump the tester and
check that air is coming from the vacuum valve.
Pump speed: 1 push/(3 seconds or more)
NOTICE:
Push the pump at a constant speed.
If air is not coming from the vacuum valve, replace the reservoir
cap.
(b) Pump the tester and measure the relief valve opening
pressure.
B08802
Pump speed: 1 push within 1 second
NOTICE:
This pump speed is for the first pump only (in order to close
the vacuum valve). After this, the pump speed can be re-
duced.
Standard opening pressure:
93 − 123 kPa (0.95 − 1.25 kgf/cm
Minimum opening pressure:
79 kPa (0.8 kgf/cm
HINT:
Use the tester's maximum reading as the opening pressure.
If the opening pressure is less than minimum, replace the reser-
voir cap.
1613
2
, 13.5 − 17.8 psi)
2
, 11.5 psi)
CO−13
CO04O−27