Page 1586 - Foton Workshop Manual - Tunland (AT)

21-2 PRESSURE BOOST - TURBOCHARGING SYSTEM

DEFECTS

Defect Possible Cause Recommended Solution
The filter element or pipeline
damaged, foreign matter Replace damaged filter
enters the supercharger and element or pipeline, replace
hits the impeller or shaft the supercharger assembly
directly

Engine oil is dirty or spoiled
for a long time, causing Replace the standard engine
The supercharger suddenly serious bad lubrication and oil and replace the
stopped working card sluggish of turbocharger turbocharger assembly
bearing

The turbocharger exhaust
bypass valve is faulty, Troubleshooting the
causing the turbocharger to turbocharger exhaust bypass
run at high load for a long valve components, replace
21
time and damage the the turbocharger assembly
bearings
The filter element or pipeline
damaged, foreign matter Replace damaged filter
enters the supercharger and element or pipeline, replace
hits the impeller or shaft the turbocharger assembly
directly
Engine oil is dirty or spoiled
for a long time, causing Replace the standard engine
serious bad lubrication and oil, replace the turbocharger
card sluggish of turbocharger assembly
bearing

Oil pressure is too low,
Rule out low oil pressure
Abnormal sound of the resulting in turbocharger oil fault, replace the turbocharger
turbocharger supply is not timely, bearing
assembly
lubrication is not good

Turbocharger impeller
replace the turbocharger
damaged and friction with the
assembly
housing
Generates periodic abnormal
sound when rotating
turbocharger impeller, notice
replace the turbocharger
the bearing clearance when
assembly
sloshing turbocharger
impeller, excessive wear of
bearings
Oil leakage of the Bolts loose, oil leakage at the
Tighten the connecting bolts
turbocharger junction

Page 1586