26
Oil Filter Element
Lubrication SyStem
44
45
Oil Pump Flow (back side)
• The oil pump is a gerotor style pump driven off of
the flats on the front of the engine’s crankshaft.
• The 6.4L oil pump is held in its own removeable aluminum
housing which also contains the regulator valve.
• Oil is drawn into the pump via the combination of
atmospheric pressure (applied to the oil in the pan)
and the low pressure area that is created between the
gerotor gears on the inlet side of the pump whenever
the pump is being driven by the crankshaft.
• Once this happens, the oil will flow into the pump and
the pump will create a generous amount of oil flow.
• When the oil reaches various restriction
throughout the engine, pressure is created.
• Pressure is limited via a pressure regulator valve located
inside the pump housing. Whenever a pressure of 65
psi is reached, the regulator valve will open and allow
pressurized oil to flow back through a relief passage to the
inlet side of the pump, thus regulating system pressure.
Oil Filter
• The 6.4L Power Stroke
®
Diesel uses a cartridge
style oil filter, located on the top of the engine.
• When the oil filter is removed, the oil filter
housing drain valve is automatically opened to
drain most of the oil from the housing.
• The oil filter element snaps into the oil filter lid.
Note: The oil filter lid should be removed before
draining the oil from the oil pan so that the oil can
drain from the filter housing into the oil pan.
Turbocharger Oil Supply
• Oil is supplied to the turbochargers from the oil filter
base via a steel oil line, a steel T fitting, and two
separate steel lines to each turbo (the high pressure
turbocharger oil supply line has a flexible link in it).
• The oil lines are connected to each turbo via
banjo fittings and washer gaskets.
Note: The washer gaskets (which are used as a gasket
medium) must be replaced each time the banjo fittings are
loosened.
43
Inlet From Oil Pan
Back Side of Pump
Outlet to
Oil Cooler
Regulator
Valve
Relief Passage
Low Pressure Turbocharger
Oil Supply
High Pressure Turbocharger
Oil Supply
Pump Rotation
Summary of Contents for 6.4L Power Stroke
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Page 89: ...88 wiring diagram single alt reference only Refer to Ford Wiring Diagrams for Wiring ...
Page 90: ...89 wiring diagram single alt reference only Refer to Ford Wiring Diagrams for Wiring ...