Page 470
SPECIFICATIONS
Cylinder head cover Casting is changed to allow space between the front and rear
cover assemblies, to accommodate the upper EGR gas tube
Cylinder sleeve Wet/dry, replaceable, centrifugally cast, alloyed cast iron
Cylinder heads Alloyed gray cast iron, two per engine, four valves per
cylinder. Intake port design changed to achieve optimum air
flow and desired swirl characteristics
Cylinder head — valve springs Progressive rate design capable of working under higher
engine speeds. Exhaust valves have additional inner springs
Cylinder head — valve guides Machined to a smaller diameter to accommodate the new
design valve stem seal. Smaller diameter also required to
provide sufficient room for the inner valve spring
Cylinder head gaskets — body Nonasbestos material with steel core, two per engine
Cylinder head gaskets — fire ring Steel, keyed, six per engine
EGR cooler Stainless steel construction with lower petcock for draining
EGR gas tubing All tubes and clamps are made of stainless steel
EGR valve Poppet-type valve with two sealing surfaces on a common
shaft
Engine front cover (timing gear cover) Die-cast aluminum, precision-doweled
Flywheel housing Die-cast aluminum or ductile iron, standard SAE No. 1,
precision-doweled
Fuel filters Spin-on disposal type with metric mounting threads
Fuel injection nozzles 8-hole, 140-degree spray angle, Bosch
Fuel injection pumps Electronic unit pumps, Bosch
Fuel supply pump Gear type, Bosch
Lubrication system Full pressure, wet sump
Oil capacities —
앫 Total system capacity (dry, after engine overhaul) —
41.5 qts. (39.3 L)
앫 Oil change capacity without filter replacement —
36 qts. (34 L)
앫 Oil change capacity with filter replacement — 40 qts.
(38.9 L)
Main bearing caps Ductile iron, intermediates supported with buttress screws
Manifold — air inlet One-piece aluminum alloy, six port
Manifold — EGR gas mixer One-piece aluminum alloy
Manifold — exhaust Three-piece, six port includes EGR valve mounting and inlet
chamber
Manifold — water All new one-piece aluminum with three-bolt pattern at each
point the manifold contacts the head
Pistons Two-piece articulated, steel crown with three rings, aluminum
alloy skirt, pin bushingless. The crown of piston contains the
swirl/combustion chamber incorporated into its design
Piston rings — compression Keystone, plasma-faced top ring. Rectangular, chrome,
tapered-face second ring
Item Description
5-111.bk Page 470 Monday, July 10, 2006 2:26 PM
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