4-8 COOLING SYSTEM
Start the engine, warm up the engine thoroughly, and then
stop the engine.
Wait until the engine cools down.
Remove the radiator cap.
Check the coolant level (see Coolant Level Inspection in
the Periodic Maintenance chapter).
If the coolant level is low, add coolant up to the bottom of
the filler neck.
Loosen the air bleeder screw on the top of the left radiator
until the coolant begins to flow out from the air bleeder
Torque - Air Bleeder Screw: 1.6 N·m (0.16 kgf·m, 14 in·lb)
Install the radiator cap.
Check the cooling system for leaks.
Cooling System Pressure Testing
During pressure testing, do not exceed the pres-
sure for which the system is designed to work. The
maximum pressure is 137.3 kPa (1.40 kgf/cm², 19.9
Remove the radiator cap, and install a cooling system
pressure tester [A] and adapter [B] on the radiator filler
Wet the adapter cap sealing surfaces with water or
coolant to prevent pressure leaks.
Build up pressure in the system carefully until the pres-
sure reaches 137.3 kPa (1.40 kgf/cm², 19.9 psi).
Watch the gauge for at least 6 seconds.
If the pressure holds steady, the cooling system is all right.
If the pressure drops and no external source is found,
check for internal leaks. Check the cylinder head gasket
Remove the pressure tester, replenish the coolant, and
install the radiator cap.