Volkswagen Front Wheel Drive 1974-1989 Repair Guide

Vacuum Servo

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REMOVAL & INSTALLATION



See Figures 1 and 2

  1. Disconnect the negative battery cable.
  2.  
  3. If necessary, remove the air cleaner.
  4.  
  5. Disconnect the vacuum line from the servo.
  6.  



Click image to see an enlarged view

Fig. Fig. 1: Unplug the vacuum line and remove the nuts securing the servo

  1. Remove the nut(s), then disconnect the rod and remove the servo from the engine.
  2.  



Click image to see an enlarged view

Fig. Fig. 2: Disconnect the rod, then remove the servo from the engine

  1. Installation is the reverse of removal.
  2.  

ADJUSTMENT



  1. Disengage the connecting rod from the throttle lever ball socket.
  2.  
  3. Make sure the throttle is fully closed against the stop screw.
  4.  
  5. Adjust the length of the rod to fit exactly between the servo and the throttle, then turn the ball socket out one more turn to lengthen the rod.
  6.  
  7. Make sure the idle speed is correct and check the throttle for smooth movement.
  8.  

 
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