Toyota Celica, Corolla, ECHO & MR2 1999-05

Rocker Arm (Valve) Cover

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Removal & Installation



  1. Disconnect the spark plug wires from the clamp on the valve cover.
  2.  
  3. Label the spark plug wires and extract them at the rubber boot end.
  4.  

Pulling on or bending the plug wires may damage the conductor inside.

  1. Disconnect the accelerator cable from the throttle body, then pull the cable from the clamp on the intake manifold.
  2.  
  3. Disconnect the throttle control cable from the throttle body.
  4.  
  5. Remove the PCV hose.
  6.  



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Fig. Pull the PCV valve and assorted hoses from the valve cover

  1. Unbolt the cable bracket from the intake manifold.
  2.  
  3. On some models, disconnect the engine wire protector from the mounting bolts of the No. 2 timing belt cover in the sequence shown.
  4.  



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Fig. Remove the engine wire protector from the mounting bolts for the No. 2 timing belt cover in this sequence



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Fig. Then lift the cover off and set the harness aside

  1. Remove the nuts, grommets, valve cover and gasket.
  2.  



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Fig. Remove the four nuts to extract the ...



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Fig. ... grommets. Be sure to arrange them in the order of removal

If the grommets are being reused, arrange them in the same order as they had been removed. Leakage can occur if a grommet is placed in the wrong position.



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Fig. Lift the entire valve cover off the cylinder head to ...

  1. Pull off the gasket from the crease of the valve cover.
  2.  



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Fig. ... pull off the seal inset into the valve cover

  1. Clean the valve cover and cylinder head mating area thoroughly.
  2.  

To install:

  1. Apply seal packing to the cylinder head as shown in the illustration.
  2.  



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Fig. Apply seal packing to the cylinder head at these areas

  1. Install the gasket to the valve cover. Install the valve cover and position the four grommets and nuts.
  2.  
  3. Uniformly tighten the nuts in several passes to 17 ft. lbs. (23 Nm).
  4.  

Install the grommets so that their markings are as shown.



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Fig. Be sure to install the grommets with the markings in the correct position

  1. If removed, install the engine wire protector to the mounting bolts of the No. 2 timing belt cover in the sequence shown.
  2.  



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Fig. Tighten the engine wire protector mounting bolts in this order

  1. Connect all the cables and hoses detached previously. Tighten the accelerator bracket.
  2.  
  3. Install and secure the plug wires. Attach the wires into the clamp.
  4.  

 
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