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Auxiliary Shaft

  1. Auxiliary shaft drives distributor, oil pump and fuel pump. Shaft is driven by timing belt. Remove oil pump. See Oil Pump Removal.  Remove fuel pump and distributor. Inspect drive gears of distributor and oil pump, if gears are chipped or worn, auxiliary shaft must be replaced.
  2. Remove timing belt as previously outlined. With fuel pump, oil pump and distributor removed, remove auxiliary shaft sprocket. Remove lock plate and auxiliary shaft. Thoroughly clean and inspect shaft.
  3. Check inner and outer journals of shaft. If journal size is less than specified, replace shaft. Check inside diameter of inner and outer bushings, if more than specified, replace bushings.
  4. To replace bushings, drive out of crankcase using a suitable driver (A.60372/1/2 outer journal and A.660372/1 inner journal). Install new bushings using same drivers as used for removal. Make sure oil holes in bushings align with oil holes in crankcase. Ream bushings to specified clearance with shaft using a suitable reamer (A.90365).
  5. Install auxiliary shaft and lock plate. Install sprocket and secure with lock plate and screw. Install remaining components as previously outlined or in reverse of removal order.
    AUXILIARY SHAFT SPECIFICATIONS

    Application Size
    Auxiliary Shaft  
      Outer Journal 1.4013-1.4023" (35.59-35.62mm)
      Inner Journal 1.2575-1.2583" (31.94-31.96mm)
    Bushings (Reamed)  
      Outer Journal 1.4041 -1.4049" (35.66-35.68mm)
      Inner Journal 1.2598-1.2606" (32.00-32.02mm)
    Clearance  
      Outer Journal .0018-.0036" (.046-.091mm)
      Inner Journal .0016-.0031" (.04-.08mm)
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