Rear Main Bearing Oil Seal
NOTE:
Replace upper and lower seal halves as a unit. Install seal with lip facing front of engine. With the rear main bearing cap removed, proceed as follows:
- Remove old seal from bearing cap. Use small brass drift punch to tap the upper seal until the end protrudes far enough to be removed with pliers.
- To replace upper seal, fabricate a tool from.004" shim stock (see illustration). Position tool between crankshaft and seal seat, then position seal between crankshaft and tip of tool so that seal bead contacts tip of tool.
- Roll seal around crankshaft using tool as a "shoe-horn" to protect seal bead from sharp corner of seal seat surface. Remove tool, being careful not to withdraw seal.
- Install lower seal in bearing cap, using tool as a "shoehorn". Feed seal into cap using light thumb pressure. Apply sealant to bearing cap interface, being careful to keep sealant off seal split line. Install bearing cap and torque to specification.