On 1967 and earlier models, the air cleaner assembly should be cleaned and inspected every six months or 6,000 miles. In order to clean the filter, the wing nut retaining the air cleaner assembly to the carburetor must be removed. On vehicles equipped with closed crankcase ventilation systems, the hose at the vent filter must be disconnected. Remove the air cleaner cover and filter element. Hold the element in a vertical position and tap it lightly against a smooth horizontal surface to shake the dust and dirt out. Direct clean, compressed air through the element in the opposite direction of normal air flow. Clean the inside of the filter housing with a solvent-dampened rag. Inspect the filter by placing a light bulb in its center, and check for cracks and remaining dirt. Install the air cleaner body on top of the carburetor so that the word front faces the front of the car. Place the filter in the cleaner housing and place the cleaner cover on top. Connect the air duct to the air cleaner and tighten the retaining wing nuts. On vehicles with closed crankcase ventilation, connect the vent hose to the vent filter and tighten the hose retaining clamp.
REMOVAL & INSTALLATION
See Figures 1 through 6
The interval for replacing the air filter varies with the model year, engine, and type of element. Refer to the maintenance schedule for the proper interval. The procedure for removing the old filter and installing the new one is the same procedure as for cleaning. When installing the new filter, be sure that the word top faces up.