1. With the oil pan and oil pump
removed, remove the rear main bearing cap.
2. Remove oil seal from the bearing
cap by prying from the bottom with a small screwdriver.
3. To remove the upper half of the
seal, use a small hammer to tap a brass pin punch on one end of seal until it protrudes
far enough to be removed with pliers.
4. Clean all sealant and foreign
material from cylinder case, bearing cap and crankshaft, using a non-abrasive cleaner.
5. Inspect components for nicks,
scratches, burrs and machining defects at all sealing surfaces, case assembly and
6. Coat seal lips and seal bead with
light engine oil. Keep oil off seal mating ends.
7. Position tip of tool between
crankshaft and seal seat in cylinder case.
8. Position seal between crankshaft
and tip of tool so that seal bead contacts tip of tool. Make sure that oil seal lip
is positioned toward front of engine.
9. Roll seal around crankshaft using
tool as a "shoe-horn" to protect seal bead from sharp corner of seal seat
surface in cylinder case. Installation tool must remain in position until seal is
properly positioned with both ends flush with block.
10. Remove tool, being careful not to
11. Install seal half in bearing cap, again
using tool as a "shoe-horn", feeding seal into cap using light pressure with
thumb and finger.
12. Install bearing cap to case with
sealant applied to the cap-to-case interface being careful to keep sealant off the seal
13. Install the rear main bearing cap (with
new seal) and torque to 10-12 lb. ft.. Tap end of crankshaft first rearward then
forward with a dead blow hammer. This will line up the thrust surfaces.
Retorque bearing cap to 70 lb. ft..