Mazda Trucks 1972-1986 Repair Guide

Air Cleaner

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See Figures 1, 2, 3, 4, 5, 6 and 7

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Fig. Fig. 1: View of the 1,586cc engine air cleaner housingto help prevent icing, move the lever to W when temperatures drop below 50ºF; above 50ºF, move the lever to S



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Fig. Fig. 2: View of the 1,998cc air cleaner housingthe filter element (1) should be replaced every 24,000 miles or 2 years



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Fig. Fig. 3: View of the rotary engine air cleaner housing



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Fig. Fig. 4: View of the diesel engine air cleaner housingthe arrows show the mounting points



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Fig. Fig. 5: View of the 1,796cc and 1,970cc engine air cleaner housing



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Fig. Fig. 6: To change the air filter, remove the wingnut at the center of the air cleaner assembly ...



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Fig. Fig. 7: While you have the lid off the air cleaner, check the breather filter and replace as necessary

The air cleaner uses a disposable paper element on carbureted, diesel and fuel injected engines. The air filter should be replaced at least every two years or 24,000-30,000 miles. If the car is driven in a dry and dusty climate, clean or replace the air filter twice as often. Inspect the air cleaner element for accumulations of dirt and oil and wipe the air cleaner housing with a cleaner. Replace the element as necessary.

In severe service, such as off-road use or in extremely dusty areas, the maintenance interval should be cut in half.

REMOVAL & INSTALLATION



Replacing the air cleaner element is a simple, routine maintenance operation. You should be careful, however, to keep dust and dirt out of the air cleaner housing, as they accelerate engine wear. If the outside of the air cleaner housing is dusty, wipe it with a clean rag before beginning work.

On carburetor equipped engines, you typically have to remove only the top cover of the air cleaner. Remove the wingnut at the center of the housing and then unclip the three clips situated around the sides. Then, pull the top cover off and remove the air cleaner element. When installing the new element, make sure it seats squarely around the bulge in the center of the lower air cleaner housing. Install the housing top, turning it until the wingnut mounting stud lines up with the hole in the top (it's usually off center). Note that the top cover should seat tightly all around. Install the wingnut and reclip the clips.

 
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