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Turbocharger; On-vehicle Inspection - Toyota 1HD-FT Repair Manual

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Table of Contents
ENGINE - TURBOCHARGER SYSTEM
TURBOCHARGER
ON - VEHICLE INSPECTION
EG-97
.....
-.
wI
EGR System
w/o
EGR System
1.
INSPECT INTAKE AIR SYSTEM
Check for leakage or clogging between the air cleaner
housing and turbocharger inlet and between the tur-
bocharger outlet and cylinder head.
Clogged air cleaner .... Clean or replace element
Hoses collapsed or deformed
Repair or replace
Leakage from connections
Check each con-
nection and repair
Cracks in components .... Check and replace
2.
INSPECT EXHAUST SYSTEM
Check for leakage or clogging between the cylinder
head and turbocharger inlet and between the turboch-
arger outlet and exhaust pipe.
Deformed components .... Repair or replace
Foreign material in passages
Remove
Leakage from components
Repair or replace
Cracks in components .... Check and replace
3.
CHECK TURBOCHARGING PRESSURE
(a)
Warm up engine.
(b)
Using a 3 -way connector. connect SST (turbochar-
ger pressure gauge) to the hose between the vacuum
pipe and intake pipe.
SST 09992-00241
(c)
Press in the clutch pedal. then press the accelerator
pedal down as far as it will go. Measure the turbochar-
ging pressure at maximum speed (4.400 rpm).
Standard pre••ure:
38.6 - 50.0 kPa (0.39 - 0.50 kgf/cm", 5.6 - 7.3
p.i)
If the pressure is less than that specification. check
the intake air and exhaust systems for leakage.
If there is no leakage. replace the turbocharger assem-
bly.
If the pressure is above specification, check if the
actuator hose is disconnected or cracked. If not. re-
place the turbocharger assembly.

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  • Dibakar Kundu Aug 13, 2019 04:39:
    much helf full to us,we hope will get this type of support in future.