6.0 DIT Power Stroke

Overview

• The 6.0L Power Stroke has been designed to meet the customers' expectations of high horsepower and torque over a wide RPM range.
• The 6.0L Power Stroke has also been designed to meet the tougher emissions standards set by the government.
• Meeting the more stringent customer and regulated demands are accomplished in part by: VGT, digital injection, 4 valves per cylinder, and dual timing system.

• The 6.0L Power Stroke creates 325 horsepower at 3300 RPM and 560 ft/lb of torque at 2000 RPM.
• Note: Torque has increased and occurs at lower engine RPM than previous versions.

• The 6.0L Power Stroke engine is a totally new engine design that will provide improved performance and cleaner emissions.
• The cylinders of the 6.0L Power Stroke are numbered from the front on the right side 1, 3, 5, 7 and from the front on the left side 2, 4, 6, 8.

• The engine serial number is located on the left rear corner of the crankcase.
• The engine serial number identifies the engine family, build location, and the sequential build number.
• 6.0 - is the engine family identifier.
• HU2U - is a manufacturing designator.
• 6000173 - is a sequential build number.

• Another location for the engine serial number is a label on the FICM (Fuel Injection Control Module).
• The engine serial number label also states the build location and build date of the engine.
• Another label on the FICM is the part number and the FICM calibration label.

• States the horsepower rating for the engine, programmed in the powertrain control module (PCM).
• Depicts where the engine meets or exceeds emissions standards.
• Shows the engine displacement.
• Is affixed to the right hand valve cover behind the glow plug control module.

6.0L Power Stroke Features

• The aluminum rocker arm carrier is mounted on top of the cylinder head and is held in place by the cylinder head bolts.
• The rocker arm carrier provides the mounting location for all of the rocker fulcrums.
• The carrier also provides the connector pass through for the injector and glow plug.

• The 6.0L Power Stroke uses a four (4) valve per cylinder head design to increase air flow and efficiency.
• For identification, the exhaust valves are smaller than the intake valves.

• The geartrain for the crankshaft, camshaft, and high pressure pump are located in the rear of the engine under the rear cover.
• This allows the high pressure pump to be mounted inside the engine and also reduces geartrain noise.

• The 6.0L Power Stroke uses two different flywheels for the manual transmission.
• A dual-mass flywheel is used on the F-250/350 Super Duty truck.
• The dual-mass flywheel can be identified by springs located around the flywheel on the engine side.
• It can also be identified by an extra ring of bolts on the transmission side of the flywheel that holds the tow masses together.
• From the side it can be identified by the separation between the clutch surface and the starter ring.

• A single mass flywheel is used on the F-450/550 Super Duty trucks.
• The single mass flywheel can be identified by the absence of the above mentioned parts and that it is machined from one solid part.

• The bearing surfaces on the crankshaft are induction hardened.
• During the hardening process the surrounding areas of the crankshaft discolor.  This condition is normal.

Cooling System

• The modular water pump can be serviced without disconnecting radiator hoses.
• Both the glow plug sleeves and the injector sleeves are stainless steel.

• Coolant is drawn into the inlet of the front cover and then flows from the water pump through the front cover to the crankcase.
• Coolant is also routed from the front cover into the crankcase to a passage that feeds the oil cooler.
• Return coolant is directed to the thermostat by the front cover.  If the thermostat is open, coolant flows to the radiator to be cooled.  If the thermostat is closed, coolant is returned to the water pump via a bypass circuit in the front cover.

• Coolant is sealed via a silicon in metal one piece gasket and is directed out of the front cover through three (3) passages.
• Two of the passages route coolant to the crankcase to cool the cylinder walls and cylinder heads.
• The third passage routes coolant to the oil cooler via a passage in the crankcase.
• There are two passages for coolant to return from the crankcase into the front cover.

• Coolant is directed out of the crankcase and into the oil filter base at the front of the engine.
• The oil filter base routes the coolant into the front of the oil cooler then toward the back of the engine.
• Once the coolant has passed through the oil cooler it is directed out of the oil filter base to the EGR cooler.
• Note: There are weep holes in the oil filter base that allow coolant or oil to seep outside of the filter base if an oil cooler seal is damaged.

• Coolant flows out of the filter base and into the EGR cooler through a tube that directs the coolant to the back of the EGR cooler.
• Coolant flows through the EGR cooler and removes heat from the exhaust gasses before the exhaust arrives at the EGR valve.
• Coolant exits the front of the EGR cooler and enters the coolant passage of the intake manifold.  The intake manifold directs the coolant back into the front cover.

• The water pump, (hub and impeller) is mounted into the front cover which is the housing for the water pump.
• The water pump impeller pulls coolant from the center of the housing and pushes it outward.
• The water pump has a built-in reservoir to catch small amounts coolant that during normal operation of the engine may seep past the seal.
• Note: The water pump impeller may be damaged if dropped or hit by a hard object.

• The 6.0L Power Stroke uses stainless steel injector sleeves to seal coolant from the injector and to transfer heat from the injector to the coolant.
• The injector sleeve is replaceable.  See unique service procedures or service manual for more details.

• Glow plug sleeves are used to keep coolant from coming in direct contact with the glow plugs and to seal coolant from the combustion chamber.
• The glow plug sleeve is replaceable.  See unique service procedures or the service manual for more details.

• The coolant recovery bottle is located above the left valve cover.
• One of the ports on the bottle is attached to the EGR cooler deaeration port.  If this port or hose is blocked, damage could occur to the EGR cooler.