Replacing the front crankshaft seal ring
Remove the battery ground cable. Loosen the lower mounting bolts and the upper tension bolt of the alternator, tilt the alternator toward the engine and remove the drive belt. Unscrew the pulley mounting bolt on the crankshaft, for which it is necessary to secure the engine flywheel, having previously removed the lower clutch housing or the starter, for free access to the flywheel. Remove the pulley from the crankshaft. Using a suitable tool such as a claw, remove the front crankshaft sealing ring (see Fig. 2A.34).
Clean the sealing ring seat thoroughly. Install a new sealing ring and pulley onto the crankshaft journal and, while tightening the pulley mounting bolt, press the sealing ring into the seat.
Loosen the pulley mounting bolt again, remove the pulley and apply a layer of grease to the pulley surface that contacts the sealing ring, then install the pulley in place and secure it with a bolt. Install the lower clutch housing or starter. Install the alternator drive belt and adjust its tension. Connect the ground wire to the battery.
Replacing the rear crankshaft seal ring
Remove the flywheel.
Using a suitable claw type tool, remove the rear crankshaft seal ring. Clean the seal ring seat thoroughly.
There are two possible methods for installing the O-ring, depending on the tools available. If you have the Ford 21-011 tool, lubricate the crankshaft flange and the sealing lips with clean engine oil. Install the O-ring in the tool, then press the O-ring into the housing.
If you do not have the special tool, remove the oil pan, then unscrew the bolts securing the rear seal seat and remove the seal seat from the cylinder block. It is necessary to use new gaskets for the seal seat and the pan when installing in its original position. Thoroughly clean the seal seat and the mating surfaces of the pan and crankcase. Install a new seal ring directly into the housing; place a flat block across the ring and press the seal ring into the housing. Lubricate the crankshaft flange and the inner lip of the seal ring with clean engine oil, and install the housing with a new gasket on the cylinder block and secure with bolts (see Fig. 2A.35, 2A.36).
Check that the mating surfaces of the crankshaft and flywheel are clean, then install the flywheel.
The text of the article was copied from the website FORDBOOK.RU