Toyota Previa 1991-1997 Repair Information

Rocker Arm (Valve) Cover

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REMOVAL & INSTALLATION



See Figures 1 through 9

  1. Remove the right side engine service hole cover.
    1. Remove the three screws and the scuff plate.
    2.  
    3. Unbolt and disconnect the right seat belt from the front floor panel.
    4.  
    5. Remove the four bolts holding the right front seat.
    6.  
    7. Remove the two bolts and the right front seat leg.
    8.  
    9. Remove the jack, the jack stand and the tool bag.
    10.  
    11. Remove the engine service hole cover.
    12.  

  2.  
  3. Remove the No. 2 cylinder head cover with the gasket.
  4.  



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Fig. Fig. 1: Remove the 3 bolts retaining the No. 2 cylinder head cover to extract it from the engine

  1. Remove the PCV hose and disconnect the four spark plug wires from the spark plugs.
  2.  
  3. Remove the No. 2 cord clamp support plate.
  4.  



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Fig. Fig. 2: Remove the four spark plug wires and PCV hose, then ...



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Fig. Fig. 3: ... remove the valve cover retaining bolts

  1. Remove the No. 1 cylinder head cover and the gasket.
  2.  



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Fig. Fig. 4: Pull the cover off and ...



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Fig. Fig. 5: ... remember the gasket on the cylinder head



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Fig. Fig. 6: Sometimes it may be stuck to the valve cover

To install:
  1. Clean the valve cover and mating surfaces of any gasket or packing materials with a scraper.
  2.  
  3. Apply seal packing to the 6 locations of the cylinder had as shown in the illustration.
  4.  



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Fig. Fig. 7: Apply seal packing to these 6 locations prior to installing the valve cover



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Fig. Fig. 8: A lot of your sealants come with a handy tip for application

  1. Place a new gasket on the cover and position it on the cylinder head. tighten the cover bolts in the sequence shown to 69 inch lbs. (8 Nm).
  2.  



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Fig. Fig. 9: No. 1 cylinder head cover tightening sequence

  1. Attach the No. 2 cord clamp support plate and tighten to 43 inch lbs. (5 Nm).
  2.  
  3. Attach the spark plug wires and PCV hose.
  4.  
  5. Attach the No. 2 cylinder head cover and secure the bolts to 48 inch lbs. (6 Nm).
  6.  
  7. Install the remaining components and secure the engine service hole cover.
  8.  

 
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