Miata 1990-1997

Valve Covers

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Removal & Installation



  1. Disconnect the vent hose from the rocker arm cover.

    Click image to see an enlarged view

    Fig. Exploded view of the engine valve cover assembly

  2.  
  3. Remove the PCV valve from the rocker arm cover.
  4.  
  5. Remove the spark plug wires from the wire clips.
  6.  
  7. Remove the rocker arm cover retaining bolts and remove the rocker arm cover and gasket.
  8.  

To install:

  1. Clean all old gasket material from the rocker arm cover and the cylinder head.
  2.  
  3. Install a new gasket onto the rocker arm cover.
  4.  
  5. Apply silicone sealer around the groove of the cover.
  6.  
  7. Install the rocker arm cover on the cylinder head with the retaining bolts. Tighten the bolts to 43-78 inch lbs. (5-9 Nm).
  8.  
  9. Install the spark plug wires to the retaining clips and install the PCV valve. Connect the vent hose to the rocker arm cover.
  10.  
  11. Start the engine and bring to normal operating temperature. Check for leaks.
  12.  

 
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