F 100 2WD Pickup V8-302 5.0L (1983)
Crankshaft Main Bearing Seal: Service and Repair
Installation
1. Carefully clean the seal groove in the rear crankshaft main bearing cap and cylinder block with a brush and solvent such as lacquer thinner, Extra
Strength Spot and Stain Remover. Also, clean the area where sealer is later to be applied. Dry the area thoroughly, so that no solvent touches the
crankshaft rear oil seal.
2. Dip the split lip-type seal halves in clean engine oil.
CAUTION: Be sure no rubber has been shaved from the outside diameter of the crankshaft rear oil seal by the bottom edge of the groove. Do not
allow oil to get on the sealer area.
3. Carefully install the upper half of the crankshaft rear oil seal (cylinder block) into its groove with undercut side of crankshaft rear oil seal toward
the FRONT of the engine, by ROTATING it on the seal journal of the crankshaft until approximately 9.53 mm (3/8 inch) protrudes below the
parting surface.
4. Tighten the remaining crankshaft main bearing cap bolts to specifications.
Crankshaft rear oil seal installation
