2. Thermostat case
2. Thermometer
3. Heater
Upside
6B-8 ENGINE COOLING
4) Remove thermostat (1).
INSPECTION
1) Make sure that air bleed valve (1) of thermostat is clean.
Should this valve be clogged, engine would tend to overheat.
2) Check to make sure that valve seat is free from foreign matters
which would prevent valve from seating tight.
3) Check thermostatic movement of wax pellet as follows:
Immerse thermostat (1) in water, and heat water gradually.
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.
INSTALLATION
1) When positioning thermostat on thermostat case, be sure to
position it so that air bleed valve comes uppermost and into the
recession of thermostat case.
2) Install thermostat cap to thermostat case. When installing cap,
align arrow marks on cap and case.
3) Fill cooling system.
4) Connect negative cable.
5) After installation, check each part for leakage.
