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:

5. Install the lower half of the crankshaft rear oil seal in the rear crankshaft main bearing cap with undercut side of crankshaft rear oil seal toward the FRONT of the engine. Allow the crankshaft rear oil seal to protrude approximately 9.53 mm (3/8 inch) above the parting surface to mate with the upper half of the crankshaft rear oil seal when the rear crankshaft main bearing cap is installed.
6. Apply a continuous even 1.59 mm (1/16 inch) diameter bead of RTV Silicone Rubber Sealer or equivalent to the areas shown in the image, following the procedures given in the illustration.

NOTE: When applying rubber silicone always use the bead size specified and join the components within 15 minutes of application. After this amount of time the sealant begins to "set-up" and its sealing effectiveness may be reduced.

7. Install the rear crankshaft main bearing cap. Tighten the bolts to specifications.
8. Install the oil pump and oil pan. Fill the crankcase with the proper amount and type of oil.
9. Operate the engine and check for oil leaks.