Personal injury can result from air pressure.
Personal injury can result without following proper
procedure. When using pressure air, wear a protective
face shield and protective clothing.
Maximum air pressure at the nozzle must be less than 205
kPa (30 psi) for cleaning purposes.
Inspect the cooling plate (3) for cracks and dents.
Replace the cooling plate if cracks or dents exist.
If necessary, clean the outside of the cooling plate and
clean the inside of the cooling plate. Use a solvent that
is not corrosive on copper. Ensure that no restrictions
for the flow of lubricating oil exist in the cooling plate.
Dry the cooling plate with low pressure air. Flush the
inside of the cooling plate with clean lubricating oil.
If the studs (8) were removed from the cylinder block,
clean the threads. Place Loctite 270 on the threads of
the stud which are threaded into the cylinder block.
Place a new gasket (10) on the studs (8). Do not use
any sealant on the gasket. Place the assembly (9) on
the cylinder block.
Tighten the nuts and bolts for the cover plate (6) to a
torque of 22 Nom (16 lb-ft).
Clean the seats for the three-piece O-rings (2). Install
new O-rings for the hose connections.
Do not remove the two-piece flanges (7) and nuts
(5) from the studs before one of the oil hoses is
installed on the cover plate. When the oil hoses
are installed, this placement of the flanges and
nuts will help to ensure that the cooling plate is
held in the correct position on the cover plate.
Install the oil hoses on the cover plate. Tighten the nuts
for the flange (5) to a torque of 22Nom (16 lb-ft).
Ensure that the cooling system of the engine is filled to
the correct level. Operate the engine.
Check for oil or coolant leakage.
Problems Of The Lubrication System
Hydraulic Test Group
The following problems are the most common problems in the
Excessive oil consumption
Low oil pressure
High oil pressure
Excessive wear of components
Excessive Oil Consumption
Leakage of Oil Through Seals And Gaskets
Inspect the rear main bearing for leakage through the
Inspect each end of the oil pan for leakage through the
seals. Inspect the oil pan for leakage through the
Inspect the lubrication system for leakage at all
Inspect the cylinder head for leakage through the
Leakage of Oil In The Cylinder Head
Leakage of oil in the cylinder head can be the cause of blue
smoke. There are four possible causes of leakage of oil into
the cylinder head:
Oil leakage between worn valve bores, valve guides,
and valve stems.
Piston rings are worn or damaged.
Piston rings are incorrectly installed.
The viscosity of the oil is incorrect.
Oil with a low viscosity can be caused by water
contamination, fuel contamination, or chemical
breakdown of the oil. The chemical breakdown can be
caused by these conditions:
An engine that continually overheats