Inspection Of Turbine - SSANGYONG 2004 Rexton 2.7XDi Workshop Manual

- Oil Drain Pipe Defect
In case where oil flow from the turbo charger
sensor housing to the crank case is not smooth
would become the reason for leakage as oil builds
up within the center housing. Also, oil thickens
(sludge) at high temperature and becomes the
indirect reason of wheel hub section. In such case,
clogging and damage of the oil drain pipe and the
pressure of blow-by gas within the crank case
must be inspected.
- Damages from Foreign Materials
When the foreign materials get into the system,
it could induce inner damage as rotating balance
of the turbo charger gets out of alignment.
EXHAUST SYSTEM
DI ENG SM - 2004.4

Inspection of Turbine

Thoroughly check the followings.
Notice
Must absolutely not operate the turbo charger with the
compressor outlet and inlet opened as it could damage
the turbo charger or be hazardous during inspection.
- Interference: In case where is trace of interference or
smallest damage on the compressor wheel means,
most of times, that abrasion has occurred on the
journal bearing. Must inspect after the overhaul.
- Oil Leakage: The reason for oil leakage at the
compressor section is the air cleaner, clogged by
substances such as dust, causes the compressor
inlet negative pressure;
A. Rotating in high speed at no-load for extended
period of time can cause oil leakage to the
compressor section as oil pressure within the
center housing gets higher than pressure within
the compressor housing.
B. Overuse of engine break (especially in low gear)
in down hill makes significantly low exhaust gas
energy compared to the time where great amount
of air is required during idling conditions of the
engine. Therefore, amount of air in the
compressor inlet increases but the turbo charge
pressure is not high, which makes negative
pressure at the compressor section causing the
oil leakage within the center housing.
Notice
No problem will occur with the turbo charger if
above conditions are found in early stage but oil
leaked over long period of time will solidify at
each section causing to breakout secondary
defects.
- Damages by foreign materials: In case where the
compressor wheel is damaged by foreign materials
requires having an overhaul. At this time, it's
necessary to check whether the foreign materials have
contaminated intake/exhaust manifold or inside of
engine.
DI04-11
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EFFECTIVE DATE
AFFECTED VIN