Radiator, Radiator Fan
Install the cap [A] on a cooling system pressure tester [B].
Wet the cap sealing surfaces with water or coolant to
prevent pressure leaks.
Watching the pressure gauge, pump the pressure tester
to build up the pressure until the relief valve opens: the
gauge hand flicks downward. Stop pumping and measure
leak time at once. The relief valve must open within the
specified range in the table below and the gauge hand
must remain within the same range at least 6 seconds.
Radiator Cap Relief Pressure
93 ∼ 123 kPa (0.95 ∼ 1.25 kgf/cm², 14 ∼ 18
If the cap cannot hold the specified pressure, or if it holds
too much pressure, replace it with a new one.
Radiator Filler Neck Inspection
Remove the right inner cover (see Frame chapter).
Remove the radiator cap.
Check the radiator filler neck for signs of damage.
Check the condition of the top and bottom sealing seats
[A] in the filler neck. They must be smooth and clean for
the radiator cap to function properly.
COOLING SYSTEM 4-15