Upper Main Bearings
Do not lubricate the side of the main bearing that is against the cylinder block.
Apply a coat of assembly lubricant, Part Number 3163087 or equivalent, to the crankshaft side of the upper main
bearings.
NOTE: Make sure the main bearing being installed is the same size as the mai n bearin g that was removed. The size
is engraved on the back of the mai n bearing.
NOTE: The crankshaft thrust bearing must be installed in the number four position.
NOTE: The upper and lower main bearing shells of some engines are not interchangeable. The backs of the main
bearings are marked with the proper orientation, if required.
NOTE: If used bearing shells are to be installed, they must be installed in their original locations, as marked
during disassembly.
Use a hoist and nylon list sling, Part Number 3375957.
Install the sling around the number 3 and nu mber 4 connecting rod beari ng journals.
Install the crankshaft.
