Engine Description

The 6.4L diesel engine:

• is a 4-cycle turbocharged V-8 with overhead valves.
• has a 6.4L (390 cu in) displacement.
• has 2 separate banks, the right bank is numbered 1, 3, 5, 7 and the left bank is numbered 2, 4, 6, 8.
• has a cylinder block design that consists of:
  • a 2-piece crankcase.
  • internal piston cooling oil jets.
  • a forged steel crankshaft.
  • powered metal, cracked connecting rods.
• has pistons that are:
  • made of an aluminum alloy.
  • fitted with an upper keystone compression ring.
  • fitted with a lower rectangular compression ring.
  • fitted with oil control rings.
• has piston pins that are:
  • free-floating design.
  • retained by piston pin retainers.
• has a camshaft that is:
  • supported by 5 insert-type camshaft bearings.
  • roller camshaft design.
  • driven by the crankshaft through the use of the crankshaft gear and the camshaft gear.
• has hydraulic valve tappets that:
  • minimize engine noise.
  • maintain zero valve lash.
  • incorporate camshaft follower guides.
  • incorporate a roller follower design that reduces camshaft wear.
• has a cylinder head design that:
  • incorporates piezo actuated fuel injectors.
  • locates the fuel injectors in the center of the combustion chambers between the rocker arms.
  • has external low pressure fuel return galleries.
• has an optional block heater that is:
  • designed to heat the engine coolant and oil for improved cold weather starts.
  • located near the starter.
  • powered by a 120-volt external power source.
  • replaceable, but not repairable.
• has an engine lubrication system that:
  • is cooled by an engine oil cooler.
  • utilizes an Engine Oil Pressure (EOP) switch, an oil pressure regulator and an Engine Oil Temperature (EOT) sensor.
  • uses a gerotor oil pump driven by the crankshaft.
• has exhaust manifolds that:
  • are a cast iron design.
  • use an exhaust manifold gasket.
  • routes exhaust gases from the engine block to the turbocharger inlet pipes.
• has an oil pan:
  • that is a 2-piece design.
  • contains an oil baffle that is located in the upper oil pan.
  • has the pickup tube mounted to the upper oil pan.
• has an intake manifold:
  • that is a 1-piece cast aluminum design.
  • has an EGR adapter mounted to it.

The 6.4L diesel engine is of a 4-stroke design. The 6.4L diesel utilizes 2 turbochargers and a high pressure common rail fuel injection system. The 6.4L diesel is designed to meet the government mandated emission standards.