Thermostatic Air Cleaner: Testing and Inspection
CHECKING INTAKE AIR PREHEATINGCheck Attachment and Seal of:
^ Preheating hose.
^ Air fiher housing.
^ Inlet hose.
^ Air intake (in front of radiator).
^ Fresh air hose.
Check Air Cleaner and Remove Throttle Housing
^ Remove the air filter.
^ Check inside Air Cleaner, clean if necessary.
^ Undo air duct connections.
^ Carefully pull housing from mountings.
^ Remove Throttle Body (TB) from Air Cleaner (ACL) by pressing two snap fasteners and pulling housing at the same time.
Check Throttle Function:
^ Bearings and mountings.
^ Spring.
^ Thermostat, cool thermostat (with a spray for example).
Throttle position at various temperatures:
- Pos. A = < +5°C (41°F) (preheated air only).
- Pos. B = about +1O°C (5O°F).
- Pos. C = > +15°C (59°F) (cold air only).
Assemble Air Cleaner
^ Assemble the TB.
^ Install ACL in car.
^ Connect all hoses and connectors.
^ Reinstall the air filter, replace if necessary.