Toyota Celica 1986-1993 Repair Guide

Valve Stem Seals

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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.

With Cylinder Head On Engine
  1. Disconnect the negative battery terminal.
  2.  
  3. Remove the valve cover, using the proper procedures.
  4.  
  5. Remove the camshaft, shims and rockers, if equipped, using the proper procedures.
  6.  
  7. Remove the spark plugs.
  8.  
  9. Rotate the engine to Top Dead Center (TDC) for each cylinder's seals that are being replaced; e.g., if replacing the No. 2 cylinder valve seals, have the No. 2 cylinder at TDC. Use a coat hanger put down into the cylinder to determine when it is at TDC.
  10.  
  11. Attach a fixture at the flywheel or the front of the engine to prevent the engine from rotating. Make sure the fixture damages no components.
  12.  
  13. Thread an adapter into the spark plug holes that can be hooked up to a shop compressor air hose.
  14.  
  15. Apply 90 psi of shop compressor air to the adapter hose. This is done to keep the valves from dropping down into the cylinder when the valve springs are removed.
  16.  


CAUTION
To avoid personal injury, wear eye and ear protection. Keep hands and clothing away from engine parts that rotate, in case the engine does rotate from the cylinder air pressure.

  1. With the cylinder under pressure, remove the valve spring retainer and the spring, using a spring compressor tool. Hitting the spring retainer with a soft hammer may help loosen the valve keepers, if the keeper will not move downward when trying to compress the spring.
  2.  
  3. With the valve spring removed, remove the oil seal.
  4.  

To Install:

  1. Install a new seal, using Toyota Special Service Tool (SST) 09201-41020, or equivalent.
  2.  
  3. Reinstall the valve springs (See Valves).
  4.  
  5. Release the air pressure and reverse the removal procedures to complete installation.
  6.  
  7. Connect the negative battery terminal, start the engine and check for leaks.
  8.  



Click image to see an enlarged view

Fig. Fig. 1 Removing the valve sealsCelica



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Fig. Fig. 2 Intake and exhaust valve sealsCelica



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Fig. Fig. 3 Installing the valve sealsCelica

With Cylinder Head Off Engine
  1. Disconnect the negative battery terminal.
  2.  
  3. Remove the cylinder head, using the proper procedures.
  4.  
  5. Remove the valve and spring (See Valves).
  6.  
  7. Remove the oil seal.
  8.  

To Install:

  1. Install a new seal, using Toyota Special Service Tool (SST) 09201-41020, or equivalent.
  2.  
  3. Reinstall the removed components to complete installation.
  4.  
  5. Connect the negative battery terminal, start the engine and check for leaks.
  6.  

 
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