Suzuki 2000 Grand Vitara SQ625 Service Manual page 519

6B-14 ENGINE COOLING
[G16 engine]
[J20 engine]
[H25 engine]
_ Check thermostatic movement of wax pellet as follows:
a) Immerse thermostat in water, and heat water gradually.
b) Check that valve starts to open at specific temperature.
If valve starts to open at a temperature substantially below or
above specific temperature, thermostat unit should be re-
placed with a new one. Such a unit, if reused, will bring about
overcooling or overheating tendency.
1. Thermostat
2. Thermometer
3. Heater
INSTALLATION
1) When positioning thermostat and O-ring on thermostat case, be
sure to position it so that
_ air bleed valve comes at top (G16 engine).
_ air bleed valve comes at match mark and into the recession of
thermostat case (J20 and H25 engines).
2) Install thermostat cap to intake manifold (G16 engine), water
pump (J20 engine) or thermostat case (H25 engine).
3) Install cooling fan and fan shroud and connect radiator inlet hose
to radiator (H25 engine only).
4) Fill cooling system. Refer to "COOLANT" and steps 8) to 10) of
"COOLING SYSTEM FLUSH AND REFILL" in this section.
5) Connect negative (–) cable at battery.
6) After installation, check each part for leakage.
1. Thermostat
2. Air bleed valve
3. Match mark
Temp. at which
valve begins to open
Temp. at which valve
becomes fully open
Valve lift
J20 and
H25 engines : 82 + 2_C (179 + 3.6_F)
G16 engine : 88 + 2_C (190 + 3.6_F)
J20 and
H25 engines: 95_C (203_F)
G16 engine : 100_C (212_F)
J20 and
H25 engines: More than
: 8 mm at 95_C (203_F)
G16 engine : More than
: 8 mm at 100_C
: (212_F)