Cylinder Block Assembly: Description and Operation
DESCRIPTION
The 3.0L engine utilizes a cast aluminum cylinder block (2) molded around cast iron piston sleeves (1). The cylinder angle is 72 degrees with cylinder spacing at 106 mm (4.173 in.). The cylinder block (2) has increased rigidity that reduces structural flexing, plus a fractured connecting rod cap design that can not distort connecting rod cap fit. The liner (1) surface is honed to a cross hatch angle between 40�-60�.
There is a stamped cylinder liner grading identification number located on the left front of the engine block, below the high pressure pump location. This identification mark (A, X, or B) is used for piston selection. For example, an "X" cylinder liner can use an "A", "X" or "B" piston. An "A" cylinder liner can only use an "A" or an "X" piston, and a "B" cylinder liner can only use a "X" or a "B" cylinder liner.
Cylinders are numbered front to back, beginning with the right bank. The right bank cylinders are numbered 1, 2, 3. The left bank cylinders 4, 5, 6. The injection order of the engine is 1-4-2-5-3-6.