Toyota Celica 1986-1993 Repair Guide

Release Cylinder

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REMOVAL & INSTALLATION




CAUTION
On models with an air bag, wait at least 30 seconds from the time that the ignition switch is turned to the lock position and the battery is disconnected before performing any further work.

  1. Place a small plastic container under the clutch line tube fitting and disconnect it, using a line wrench.
  2.  
  3. Remove the two retaining bolts and the tube clamp bolt.
  4.  
  5. Pull the release cylinder from its mounting.
  6.  

To install:

  1. Install the release cylinder onto it mounting.
  2.  
  3. Install and tighten the two bolts.
  4.  
  5. Connect and tighten the clutch line tube to 11 ft. lbs. (15 Nm).
  6.  
  7. Fill the reservoir with brake fluid and bleed the clutch system as described in this Section.
  8.  
  9. Check for leaks and test drive the vehicle.
  10.  

OVERHAUL



  1. Remove the release cylinder and loosely clamp in a soft jaw vise.
  2.  
  3. Using low pressure compressed air, remove the piston and spring from the cylinder.
  4.  
  5. Inspect the release cylinder bore for scoring or corrosion. Clean the bore or replace the release cylinder as necessary.
  6.  
  7. Inspect the piston cups for wear, cracks, scoring or swelling.
  8.  
  9. Inspect the pushrod for wear or damage.
  10.  
  11. Coat the piston with lithium soap base glycol grease.
  12.  
  13. Insert the piston with the spring.
  14.  
  15. Install the boot and insert the push rod.
  16.  
  17. Install the cylinder, fill the clutch reservoir and bleed the system.
  18.  
  19. Check for leaks.
  20.  



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Fig. Fig. 1 Clutch release cylinder components1990-93 Celica shown



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Fig. Fig. 2 Applying lubricant to clutch release cylinder componentsCelica

HYDRAULIC SYSTEM BLEEDING




WARNING
If any maintenance on the clutch system was performed or the system is suspected of containing air, bleed the system. Brake fluid will remove the paint from any surface. If the brake fluid spills onto any painted surface, wash it off immediately with soap and water.

  1. Fill the clutch reservoir with brake fluid. Check the reservoir level frequently and add fluid as needed.
  2.  
  3. Connect one end of a vinyl tube to the bleeder plug and submerge the other end into a container half-filled with brake fluid.
  4.  
  5. Slowly pump the clutch pedal several times.
  6.  
  7. Have an assistant hold the clutch pedal down and loosen the bleeder plug until fluid starts to run out of the bleeder plug. You will notice air bubbles mixed in with the fluid.
  8.  
  9. Repeat Steps 2 and 3 until all the air bubbles are removed from the system.
  10.  
  11. Tighten the bleeder plug when all the air is gone.
  12.  
  13. Refill the master cylinder to the proper level as required.
  14.  
  15. Check the system for leaks.
  16.  



Click image to see an enlarged view

Fig. Fig. 3 Bleeding clutch system at release cylinderCelica

 
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