New Yorker L6-225 3.7L VIN E 1-bbl (1982)
Fan Clutch: Testing and Inspection
Fig. 2 Disconnecting thermostatic spring
Fig. 3 Checking spring & shaft rotation
Do not operate the engine until the fan has been first checked for possible cracks and separations.
Run the engine at a fast idle speed (1000 RPM) until normal operating temperature is reached. This process can be speeded up by blocking off the front
of the radiator with cardboard. Regardless of temperatures, the unit must be operated for at least five minutes immediately before being tested.
Stop the engine and, using a glove or a cloth to protect the hand, immediately check the effort required to turn the fan. If considerable effort is required,
it can be assumed that the coupling is operating satisfactorily. If very little effort is required to turn the fan, it is an indication that the coupling is not
operating properly and should be replaced.
Another test is to disconnect the bi-metal spring and rotate counterclockwise until a stop is felt. Measure the gap between end of coil and housing clip.
The gap should be 1/2 inch. If not, replace fan clutch.
