Mitsubishi Lancer Evolution-IV Workshop Manual page 82

14-4
Rubber ring
ENGINE COOLING –
INSTALLATION SERVICE POINTS
Jiggle valve
"AA THERMOSTAT INSTALLATION
(1) Install the thermostat so that the jiggle valve is facing
(2) When assembling the thermostat, be careful not to fold
"BA RADIATOR LOWER HOSE CONNECTION
(1) Insert each hose as far as the projection of the water
(2) Align the mating marks on the radiator hose and hose
INSPECTION
THERMOSTAT CHECK
(1) Immerse the thermostat in water, and heat the water while
(2) Check that the amount of valve lift is at the standard
Valve lift
Thermostat
straight up.
Caution
Make absolutely sure that no oil is adhering to the
rubber ring of the thermostat. If the rubber ring is
damaged, replace the thermostat.
over or scratch the rubber ring.
inlet fitting.
clamp, and then connect the radiator hose.
stirring. Check the thermostat valve opening temperature.
Standard value: 76.5 ± 1.5_C
value when the water is at the full-opening temperature.
Standard value:
Full-opening temperature: 90_C
Amount of valve lift: 8.5 mm or more
NOTE
Measure the valve height when the thermostat is fully
closed, calculate the valve lift by subtracting this
measurement from the valve height when the thermostat
is fully open.