The four-cylinder engine features a one-piece rear
Crankshaft Seal installed after the final crankshaft installation. V6 engines from 1984 and earlier originally came with a two-piece rear Crankshaft Seal, which is prone to leakage and should be replaced with a one-piece service replacement rear Crankshaft Seal kit; this kit can be obtained from an auto parts supplier or dealership and is installed during crankshaft installation. V6 engines from 1985 and later are equipped with a one-piece rear Crankshaft Seal similar to the four-cylinder design, installed after the final crankshaft installation. For V8 engines from 1985 and earlier, it is important to inspect the bearing cap and engine block mating surfaces for defects, install the lower seal section in the block with the lip facing the front, and ensure it is seated properly. The remaining seal half is then installed in the rear Crankshaft Seal bearing cap, also ensuring proper seating. During the final installation of the crankshaft, a thin, even film of anaerobic-type gasket sealant should be applied to the Crankshaft Seal bearing cap split-line. For models from 1986 and later, the rear Crankshaft Seal is installed after the final crankshaft installation; the old oil seal must be carefully pried out, the retainer cleaned, and a new gasket installed with specified torque. The seal lip should be lubricated with clean engine oil, and the seal can be pressed into the housing using a one-piece rear Crankshaft Seal installation tool or driven in carefully with a blunt tool, ensuring it is squarely positioned without damage.