main applications - KS Motor

ENGLISH
BASICS
2.2.6 Troubleshooting / damage diagnosis
The lubrication system and the engine
mechanics consist of a number of
fi xed and moveable parts. Each component
is involved specifi cally for
itself as well as in conjunction with
other components. For this reason,
oil pressure and oil supply problems
can have multiple causes. When one
component fails, often the entire
lubrication system is affected. If
• Oil level too low
• Oil viscosity too low (too thin)
• Oil foam in crankcase because oil
level is too high, due to unsuitable
oil with wrong additive, or due to
dirty oil
• Oil intake strainer clogged
• Leak in oil intake pipe (only air is
drawn in)
• Sticking (open) oil pressure
control valve
(Usually these are not caused by a
defective oil pump)
• Oil viscosity too high (too thick)
• Oil pressure control valve does
not work (remains closed)
32
the problem is not detected in time,
or even ignored, all the associated
components will be impaired. Often a
small problem can cause the complete
destruction of the engine. Before
the replacement of an oil pump is
considered, check the options below
and remedy any potential damage.
Problems caused if oil pressure is insuffi cient or absent
Problems caused if oil pressure is excessive
• Clogged oil fi lter
• Clogged oil ducts, hose lines and
oil cooler
• Always open or broken oil spray
nozzles (piston oil-spray cooling)
• Missing or fallen out plugs on
pressure carrying ducts of the
engine block, cylinder head and
crankshaft.
• Worn bearings in crankshaft,
camshaft, balance shafts and
rocker shafts.
• Oil fi lter clogged
• Oil pressure lines clogged
• A pump with an excessive delivery
rate was installed by mistake
• Worn or defective components
such as hydraulic valve lifters,
turbochargers, injection pumps
or high pressure fuel pumps.
• Leaky sealing surfaces in the
engine