On-Vehicle Service; Engine Coolant Leak Checking; Radiator Cap Opening Pressure Check; Engine Coolant Replacement - Mitsubishi Electric Lancer Evolution-VII Workshop Manual

14-6
ENGINE COOLING -

ON-VEHICLE SERVICE

Cap adapter

ENGINE COOLANT LEAK CHECKING

1. Confirm that the coolant level is up to the filler neck.
Adapter
Install a radiator cap tester and apply 160 kPa pressure,
and then check for leakage from the radiator hose or
connections.
Caution
(1) Be sure to completely clean away any moisture
(2) When the tester is taken out, be careful not to
(3) Be careful, when installing and removing the tester
2. If there is leakage, repair or replace the appropriate part.

RADIATOR CAP OPENING PRESSURE CHECK

1. Use a cap adapter to attach the cap to the tester.
2. Increase the pressure until the indicator of the gauge
stops moving.
Cap adapter
Limit: 83 kPa
Standard value: 93 - 123 kPa
3. Replace the radiator cap if the reading does not remain
at or above the limit.
NOTE
Be sure that the cap is clean before testing, since rust
or other foreign material on the cap seal will cause an
improper indication.

ENGINE COOLANT REPLACEMENT

1. Remove the under cover.
(Refer to GROUP 51 - Front Bumper.)
2. Drain the engine coolant by removing the drain plug and
then the radiator cap.
On-vehicle Service
from the places checked.
spill any coolant from it.
and when testing, not to deform the filler neck
of the radiator.