GM Full Size Vans 1967-1986 Repair Guide

Valve Cover(s)

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REMOVAL & INSTALLATION



All Engines

See Figures 1, 2, 3 and 4



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Fig. Fig. 1: Unfasten the valve cover retainers



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Fig. Fig. 2: Remove the valve cover from the engine



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Fig. Fig. 3: Using a gasket scraper, remove the old valve cover gasket from the cylinder head



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Fig. Fig. 4: Apply sealer to the valve covers as shown. Always run the sealer bead on the inside edge of the bolt holes on the cover flange

  1. Remove air cleaner.
  2.  
  3. Disconnect and reposition as necessary any vacuum or PCV hoses that obstruct the valve covers.
  4.  
  5. Disconnect electrical wire(s) (spark plug, etc.) from the valve cover slips.
  6.  
  7. Unbolt and remove the valve cover(s).
  8.  

Do not pry the covers off if they seem stuck. Instead, gently tap around each cover with a rubber mallet until the old gasket or sealer breaks loose.

  1. To install, use a new valve cover gasket or RTV (or any equivalent) sealer. If using sealer, follow directions on the tube. Install valve cover and tighten cover bolts to 3 ft. lbs. (4 Nm).
  2.  
  3. Connect and reposition all vacuum and PCV hoses, and reconnect electrical and/or spark plug wires at the cover clips. Install the air cleaner.
  4.  

 
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