Inspection Of Cooling System; Coolant Level (Engine Cold); Coolant Quality; Coolant Leakage - Mazda B-Series 1997 Workshop Manual

SCHEDULED MAINTENANCE SERVICES
INSPECTION OF COOLING SYSTEM
Warning
Never remove the radiator cap while the engine is
hot.
Wrap a thick cloth around the cap when removing
it.
When removing the radiator cap, loosen it slowly to
the first stop until the pressure in the radiator is
released, and then remove it.
4BUOAX-018
Coolant Level (Engine cold)
1. Verify that the coolant level is near the radiator filler neck.
2. Verify that the coolant in the reservoir
is at the COLD FILL
mark. Add coolant as necessary.
4BUOAX-019
Coolant Quality
1. Verify that there is no buildup of rust or scale around the
radiator cap or filler neck.
2. Verify that the coolant is free
of oil. Replace the coolant if
necessary.
Coolant Leakage
1. Connect a radiator tester (commercially available) to the
radiator filler neck.
2. Apply 97-1 24 kPa (1 .O-1.2 kgf/cm2, 14-1
8
psi) pres-
sure
to
the system.
3. Verify that the pressure is held for at least 2 minutes. If not,
check the system for coolant leakage.
6BUOAX-006
A-I 2