ENGINE COOLING SYSTEM - Water Pump (Cont'd) / Thermostat

LC-11prose procedure

Thermostat is offered in two grades — Standard (82°C / 179°F opening) and 'For cold area' (88°C / 190°F opening).

Water Pump (Cont'd)

Before installing water pump, remove liquid gasket from mating surface of water pump using a scraper.

IMPORTANT

Be sure liquid gasket in grooves is also removed.

Remove liquid gasket from mating surface of front cover.

Remove all traces of liquid gasket using white gasoline.

Apply liquid gasket to mating surface of pump housing as shown.

Specification	Value
Liquid gasket bead widthWater pump mating surface	2.0 - 3.0mm (0.079 - 0.118 in)

Liquid gasket bead widthWater pump mating surface

2.0 - 3.0mm (0.079 - 0.118 in)

1
Check for valve seating condition at ordinary temperatures. It should seat tightly.
SLC259A
2
Check valve opening temperature and maximum valve lift.
SLC343
3
Then check if valve closes at 5°C (9°F) below valve opening temperature.
After installation, run engine for a few minutes, and check for leaks.

Parameter	Standard	For cold area
Valve opening temperature °C (°F)	82 (179)	88 (190)
Max. valve lift mm/°C (in/°F)	8/95 (0.31/203)	8/101 (0.31/214)

Valve opening temperature °C (°F)

Standard82 (179)

For cold area88 (190)

Max. valve lift mm/°C (in/°F)

Standard8/95 (0.31/203)

For cold area8/101 (0.31/214)

When installing water outlet apply liquid gasket as shown.

Specification	Value
Thermostat housing / water outlet boltTightening torque	6.3 - 8.3N·m
Liquid gasket bead widthWater outlet mating surface	2.0 - 3.0mm (0.079 - 0.118 in)

Thermostat housing / water outlet boltTightening torque

6.3 - 8.3N·m

Liquid gasket bead widthWater outlet mating surface

2.0 - 3.0mm (0.079 - 0.118 in)