Mazda Trucks 1972-1986 Repair Guide

Air Pump Filter

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REPLACEMENT



1972-73 California Models Only

See Figure 1

Click image to see an enlarged view

Fig. Fig. 1: View of the air pump air filter assembly used on 1972-73 California modelsreplace the filter element at 24,000 mile intervals

Mazdas built to be sold in California in 1972 and 1973 have an air filter for the air pump. The air pump is used for purposes of emission control; more information on the air pump system can be found in Emission Controls . The filter must be replaced at 24,000 mile intervals.

  1. Remove the wing nut holding the filter housing cover in place.
  2.  
  3. Remove the cover. Remove the old filter and discard it.
  4.  
  5. Install the new filter and install the cover. Replace the wing nut and tighten it securely.
  6.  

 
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