TC-8 TURBOCHARGER SYSTEM
-
Turbocharger
TURBOCHARGER
ON-VEHICLE INSPECTION OF TURBOCHARGER
2,400
rpm
or more
\
SST
INSPECT INTAKE AIR SYSTEM
Check for leakage or clogging between the air cleaner and
turbocharger inlet and between the turbocharger outlet
and cylinder head.
Clogged air cleaner
....
Clean or replace the element
Hoses collapsed or deformed
....
Check each connection
and repair
Cracks in components
....
Check and replace
INSPECT EXHAUST SYSTEM
Check for leakage or clogging between the cylinder head
and turbocharger inlet and between the turbocharger out-
let 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
CHECK TURBOCHARGING PRESSURE
(a)
Warm up the engine.
(b)
Connect
a
3-way union to the intake pipe pressure
hose and install
SST
(turbocharger pressure gauge) to
it.
SST
09992-0024
1
(b)
Press in the clutch pedal, then press the accelerator
pedal down
as
far
as
it
will go. Measure the turbo-
charging pressure
at
2,400 rpm or more.
Standard pressure:
0.61
-
0.81 kg/cm2
(8.7
-
11.5 psi,
60
-
79 kPa)
If the pressure
is
less
than specification, check the intake
air and exhaust systems for leakage. If there
is
no leakage,
replace the turbocharger assembly.
If the pressure
is
above specification, check if the actuator
hose
is
disconnected or cracked. If not, replace the turbo-
charger assembly.
INSPECT IMPELLER WHEEL ROTATION
(a)
Disconnect the air cleaner hose.
(b)
Grasp the edge of the impeller wheel and turn
it.
Check that
it
turns smoothly.
If
it
does not turn or if
it
turns with
a
drag, replace the
turbocharger assembly.
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