REMOVAL & INSTALLATION
Replacement oil seals are the split rubber type. Both halves of the seal must be replaced at the same time.
- Remove the oil pan. On V8 engines, remove the oil pump.
- Remove the rear main bearing cap and seal retainer.
- Remove the lower half rope seal from the bearing cap. Remove the upper half by driving on either exposed end with a short piece of 3 / 16 in. brazing wire. As the end of the seal becomes exposed, grasp it with a pair of pliers and pull it gently from the block.
- Loosen the crankshaft main bearing caps just enough to allow the crankshaft to drop 1 / 16 in. Do not allow the crankshaft to drop enough to permit the main bearings to become displaced.
- Wipe the crankshaft clean and lightly oil the crankshaft and new seal before installation.
- Hold the seal tightly against the crankshaft (with the paint stripe to the rear) and install the upper seal half into its groove. If necessary, rotate the crankshaft as the seal is pushed in place.
- Install the lower seal half into the rear main bearing cap, with the paint stripe to the rear.
- Install the rear main bearing cap.
- Tighten the rest of the bearing caps.
- Install the oil pump, if removed, and oil pan.