11 - 6
Cooling
05_084
- On revealing values or gradual heating considerably
different to that of the engine, proceed with thermo-
stat control;
- Remove the thermostat cover and the thermostat
itself as described in Chapter 5- FLYWHEEL COVER.
05_496
- Visually check that the thermostat has no mechanical
damage;
- Prepare a metal container with ~ 1 litre of water;
- Immerse the thermostat keeping it to the centre of the
container;
- Immerse the thermometer probe of the multimeter
near to the thermostat;
- Heat the container with a heat gun;
- Check the temperature at initial opening of the ther-
mostat.
Initial opening temperature: ~ 75° C
Specific tools:
Multimeter 020331Y
Heater 020151Y
- Continue to heat until the thermostat is fully opened:
Opening length: 4 mm a 90 ± 2 °C
N.B.: Heating must be seen as gradual.
- For correct trial testing, avoid direct
contact between the thermostat and the container.
Warning
05_083
- On revealing incorrect values, replace the thermo-
stat;
- Reassemble the thermostat and its cover as de-
scribed in Chapter 5-FLYWHEEL COVER;
- Repeat the procedure from filling to discharge.
THERMOSTAT
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