SSANGYONG Rodius 2012.07 Manual page 246

2) Inspection of Turbocharger
When problem occurs with the turbocharger, it could cause engine power decline, excessive
discharge of exhaust gas, outbreak of abnormal noise and excessive consumption of oil.
1. On-board Inspection
- Check the bolts and nuts foe looseness or missing
- Check the intake and exhaust manifold for looseness or damage
-
Check the oil supply pipe and drain pipe for damages
- Check the housing for crack and deterioration
2. Inspection of turbine
Remove the exhaust pipe at the opening of the turbine and check, with a lamp, the existence of
interference of housing and wheel, oil leakage and contamination (at blade edge) of foreign
materials.
- Interference: In case where the oil leak sign exists, even the small traces of interferences on
the turbine wheel mean, most of times, that abrasion has occurred on the journal bearing.
- Must inspect after overhauling the turbocharger.
Oil Leakage: Followings are the reasons for oil leakage condition
* Problems in engine: In case where the oil is smeared on inner wall section of the exhaust
gas opening.
* Problems in turbocharger: In case where the oil is smeared on only at the exhaust gas
outlet section.
Idling for long period of time can cause oil leakage to the turbine side due to low pressure of
exhaust gas and the rotation speed of turbine wheel. Please note this is not a turbocharger
problem.
- Oil Drain Pipe Defect
In case where oil flow from the turbocharger 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 due to Foreign Materials.
- When the foreign materials get into the system, it could induce inner damage as rotating
balance of the turbocharger gets out of alignment.
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