Thermostatic Air Cleaner: Testing and Inspection

Fig. 77 Testing the heated air intake system:

1. Remove the air cleaner cover and air duct.
2. Run the engine at idle and verify that when the air temperature inside the air cleaner is below 30 degrees C or 86 degrees F that the cold air inlet is closed and that when the air temperature inside the air cleaner is above 45 degrees C or 113 degrees F that the cold air inlet side is open, Fig. 77. Note that it may be necessary to apply heat with a hair dryer or heat gun and/or to cool the thermo sensor with compressed air, Fig. 77.

Fig. 78 Testing the heated air intake system:

Note that it may be necessary to apply heat with a hair dryer or heat gun and/or to cool the thermo sensor with compressed air, Fig. 78.