The purpose of New Product Information is to highlight or indicate important changes from the previous model year.

Changes may include one or more of the following items:

The engine mechanical fastener tightening specifications have not changed for model year 2003.

There are early and late design engine mechanical specifications for connecting rod bore diameter - pin end, piston pin bore diameter and piston pin diameter. Refer to Engine Mechanical Specifications .

There are changes in drill depth and tap depth to the engine block deck face holes for the cylinder head bolts. Refer to Thread Repair Specifications .

There are no changes to the sealants and/or adhesives used for model year 2003.

The Lubrication System Priming Procedure has been replaced by the Lubrication Preluber Procedure. A new tool J 45299 has been developed to prime the engine with new clean engine oil.

There are early and late design crankshaft rear oil seals. The early design crankshaft rear oil seal requires the use of the installation tool J 42842 in order to set the correct depth. The late design crankshaft rear oil seal requires the use of a new installation tool J 44642 in order to set the correct depth. Refer to Crankshaft Rear Oil Seal Installation .

Additional engine coolant leakage diagnostics have been added.

*A new tool J 45299 has been developed to prime the engine with new clean engine oil.

*Starting in model year 2003 the bushing used in the fixture plate has been replaced by J 42385-2002. Refer to Thread Repair . For model year 2000 through 2002 use J 42385-302.

*There are early and late design crankshaft rear oil seals. The early design crankshaft rear oil seal requires the use of the installation tool J 42842 in order to set the correct depth. The late design crankshaft rear oil seal requires the use of a new installation tool J 44642 in order to set the correct depth. Refer to Crankshaft Rear Oil Seal Installation .

*The oil filter adapter has been revised. The oil filter adapter has an additional mounting boss and corresponding fastener bolt.

*The oil filter adapter sealing has been revised. An oil filter adapter gasket replaces the previously used O-rings.

*The lower crankcase has been revised. The oil filter adapter mounting area on the lower crankcase has been modified to accommodate the changes made to the oil filter adapter and the sealing of the oil filter adapter gasket.

Notice: Do not mix early and late design components. Improper clamp loads will occur if cylinder head bolts are tightened using a mixture of early and late design components. Damage will occur to the powertrain if mixed components are used.

*The engine block holes in the engine block deck faces for the M11 cylinder head bolts have decreased in depth, they are drilled and tapped approximately 7 mm (0.276 in) shallower.

Notice: Do not mix early and late design components. The internal balance of the engine will be affected if early and late design components are used together. Damage will occur to the powertrain if mixed components are used.

*There are early and late design crankshaft, connecting rods, pistons and piston pins. The early and late design components must not be interchanged.

Notice: The proper installation tool must be used with the proper component. Early and late design components are installed to different depths. Damage and/or leakage can occur if the improper installation tool is used.

*There are early and late design crankshaft rear oil seals. The early design crankshaft rear oil seal requires the use of the installation tool J 42842 in order to set the correct depth. The late design crankshaft rear oil seal requires the use of a new installation tool J 44642 in order to set the correct depth. Refer to Crankshaft Rear Oil Seal Installation .