Mazda 323 1988 Workshop Manual page 185

RADIATOR CAP, ELECTRIC FAN MOTOR
3A
RADIATOR CAP
INSPECTION
Radiator Cap Valve
1. Remove foreign material (water residue, etc.) from
between the radiator cap valve and the valve seat.
2. Attach the radiator cap with SST to a tester. Ap-
ply pressure gradually to 74-103 kPa
(0.75-l .05 kg/cm', 1 l-15 psi).
3. Wait about IO seconds, and check whether the
pressure has decreased.
The cap is normal if the pressure is maintained for
about 10 seconds.
Negative-Pressure Valve
1, Pull the negative-pressure valve to open it. Check
that it closes completely when released.
2. Check for damage on the contact surfaces,
cracked or deformed seal packing. Replace the
radiator cap if necessary.
ELECTRIC FAN MOTOR
INSPECTION
1. Disconnect the fan motor connectors
2. Connect an ammeter and battery to the fan motor
connectors.
3. Check to be sure that the fan motor operates
smoothly at the standard current or less.
Standard current: 5.6-7.6 Amperes (MTX)
10.0-l 1.0 Amperes (ATX)
4. If the fan motor is faulty, replace it.
3A-5