GM Corvette 1984-1996 Repair Guide

Front Cover Oil Seal

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REPLACEMENT



5.7L (VIN 8) Engine

See Figure 1

cover removed
  1. Remove the front cover from the vehicle.
  2.  
  3. Use a suitable tool to pry the oil seal out of the cover from the front, being very careful not to damage the cover.
  4.  

To install:
  1. Support the rear of the cover at the seal area.
  2.  
  3. Install the seal using tool J 35468 or equivalent front cover aligner and oil seal installer, so that the open end of the seal is toward the inside of the cover.
  4.  
  5. Install the front cover in the vehicle.
  6.  



Click image to see an enlarged view

Fig. Fig. 1: You must use the suitable tool to drive the seal into the front cover-5.7L (VIN 8) engine

cover installed
  1. Remove the crankshaft (torsional) damper.
  2.  
  3. Use a suitable tool to pry the oil seal out of the cover from the front, being very careful not to damage the cover.
  4.  

To install:
  1. Install the seal using tool J 35468 or equivalent front cover aligner and oil seal installer, so that the open end of the seal is toward the inside of the cover.
  2.  

5.7L (VIN J) Engine

See Figures 2 and 3

  1. Disconnect the battery negative cable.
  2.  
  3. Remove the timing chain front cover assembly.
  4.  
  5. Remove the seal from the front cover using J-29077-A or equivalent seal remover tool.
  6.  
  7. Thoroughly clean the cylinder case, front cover and water pump sealing surfaces.
  8.  



Click image to see an enlarged view

Fig. Fig. 2: Removing the timing chain front cover seal, using the proper tools

To install:
  1. Apply Loctite® 262 to studs and Loctite® 565 to the bolt threads.
  2.  
  3. Install a new cover gasket and the cover, nuts and bolts.
  4.  



Click image to see an enlarged view

Fig. Fig. 3: Installation of the front cover seal-5.7L (VIN J) engine

  1. Install the new seal coated with engine oil using tool J-37309 or equivalent.
  2.  

Do not remove seal installing tool J-37309, until the front cover bolts are tightened.

  1. Tighten the front cover attaching bolts to 19 inch lbs. (26 Nm) and the stud nuts to 21 ft. lbs. (28 Nm).
  2.  
  3. Complete the front cover installation procedure and connect the negative battery cable.
  4.  

5.7L (VIN P and 5) Engines
  1. Disconnect the battery negative cable.
  2.  
  3. Remove the engine front cover.
  4.  
  5. Using a suitable tool, remove the crankshaft, distributor shaft and/or water pump driven gear shaft seals, as necessary.
  6.  
  7. As applicable; use tool J-35468 or equivalent aligner and installer, to install the crankshaft seal, tool J-39090 or equivalent, to install the distributor shaft seal and/or tool J-39088 or equivalent, to install the water pump shaft seal.
  8.  
  9. Install the engine front cover.
  10.  
  11. Connect the negative battery cable.
  12.  

 
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