Page 1587 - Foton Workshop Manual - Tunland (AT)

PRESSURE BOOST - TURBOCHARGING SYSTEM 21-3

Defect Possible Cause Recommended Solution
Engine oil is dirty or spoiled,
Replace the engine oil,
cause the inner seal of
replace the turbocharger
turbocharger damaged and
assembly
oil leakage
The oil return pipe of the
turbocharger is not smooth, Remove the turbocharger oil
resulting in excessive oil return pipe, clean or replace
accumulation at the middle of oil return pipe
the turbocharger bearing

The turbocharger oil outlet
pipe is out of circulation,
resulting in excessive oil Check turbocharger
accumulation at the middle of discharge line or replace the
the supercharger bearing. turbocharger assembly
Excessive oil is absorbed into
the intake pipe 21
Clean crankcase ventilation
Crankcase vent valve and
valve and exhaust pipe and
exhaust pipe blocked
replace if necessary
Check turbocharger
Turbocharger oil seal compressor and seal for a
damaged
turbine, and replace

Replace air filter element or
The filter element is dirty, the
remove foreign matter, fasten
inlet pipe is blocked and
pipe connection or replace
Pressurization effect is leaking damaged parts
reduced
Turbocharger impeller loose
Remove foreign matter or
or damaged, or foreign body
replace damaged parts
inside the supercharger

Page 1587