COOLING SYSTEM
RADIATOR CAP/SYSTEM PRESSURE
INSPECTION
Remove the radiator cap.
Wet the sealing surfaces of the cap, then install the
cap onto the tester.
Pressurize the radiator cap using the tester.
Replace the radiator cap if it does not hold pressure,
or if relief pressure is too high or too low.
The cap must hold the specified pressure for at least
6 seconds.
RADIATOR CAP RELIEF PRESSURE:
108 - 137 kPa (1.1 - 1.4 kgf/cm
2
,16 - 20 psi)
Pressurize the radiator, engine and hoses using the
tester, and check for leaks.
Repair or replace components if the system will not
hold the specified pressure for at least 6 seconds.
Remove the tester and install the radiator cap.
NOTICE
Excessive
pressure can damage the cooling system
components. Do not exceed
137 kPa
(1.4 kgf/cm
2
, 20
psi).
RADIATOR CAP TESTER
RADIATOR CAP TESTER
COOLANT REPLACEMENT
PREPARATION
NOTICE
Using coolant with silicate corrosion inhibitors may
cause premature wear of water pump seals or
blockage of radiator
passages.
Using tap water may
cause engine damage.
NOTE:
• The effectiveness of coolant decreases with the
accumulation of rust or if there is a change in the
mixing proportion during usage. Therefore, for
best performance change the coolant regularly
as specified in the maintenance schedule.
Mix only distilled, low mineral water with the rec-
ommended antifreeze.
RECOMMENDED ANTIFREEZE:
Pro Honda HP coolant or an equivalent high qual-
ity ethylene glycol antifreeze containing silicate-
free corrosion inhibitors
RECOMMENDED MIXTURE:
1:1 (distilled water and recommended antifreeze)
ANTIFREEZE
SOLUTION
(ETHYLENE
GLYCOL BASE
SOLUTION)
LOW MINERAL
OR DISTILLED
WATER
COOLANT
6-6
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