Air Injection Filter: Service and Repair

Fig. 68 Removing centrifugal type air pump filter:

Centrifugal Filter Fan, Replace

1. Remove drive pulley and outer disc from air pump.

2. Remove filter fan from pump, Fig. 90.


NOTE: Do not attempt to remove the metal drive hub.


3. Install new filter fan using the pulley and bolts. Alternately tighten bolts to draw fan down evenly.


NOTE: A slight interference between the fan and housing is normal. A new fan may make noise during initial operation, until it's outer diameter sealing lip has worn in, after approximately 20-30 miles of operation.