TURBOCHARGER COMPONENTS
INSPECTION
Turbochargers
1. INSPECT TURBINE SHAFT ROTATION
Grasp the edge of the turbine wheel and turn it. Check that
the impeller wheel turns smoothly.
If the impeller wheel does not turn or if it turns with a drag, re-
place the turbocharger assembly.
2. INSPECT AXIAL PLAY OF TURBINE SHAFT
(a) Using a dial indicator, insert the needle of the dial indicator
into the air tube side.
(b) Move the turbine shaft in an axial direction, measure the axial
play of the turbine shaft.
Maximum axial play:
0.110 mm (0.0045 in.)
If the axial play is greater than maximum, replace the turbo-
charger assembly.
3. INSPECT RADIAL PLAY OF TURBINE SHAFT
(a) Using a dial indicator, insert the needle of the dial indicator
into the oil outlet hole and set it in the center of the turbine
shaft.
(b) Move the turbine shaft in a radial direction, measure the
radial play of the turbine shaft.
Maximum radial play:
0.162 mm (0.0064 in.)
If the axial play is greater than maximum, replace the turbo-
charger assembly.
4. INSPECT WASTE GATE VALVE OPERATION
(a) Disconnect the actuator air hose from the housing, and plug
the hose end.
(b) Using SST, apply approx. 120 kPa (1.22 kgf/cm
2, 17.4 psi) of
pressure to the actuator.
SST 09992±00241
(c) Move the actuator push rod, and check that the waste gate
valve is open.
If operation is not as specified, replace the No.1 turbocharger
assembly.
NOTICE: Never apply more than 187 kPa (1.91 kgf/cm2, 27.2
psi) of pressure to the actuator.
(d) Reconnect the actuator air hose to the housing. EG±158
± ENGINETURBOCHARGER SYSTEM (2JZ±GTE)
SERVICE SPECIFICATIONS
SERVICE DATA
Turbocharger
Turbocharging pressure
Impeller wheel axial play Limit
Impeller wheel radial play Limit
61±75 kPa (0.62±0.76 kgf/cm2, 8.8±10.8 psi)
0.162 mm (0.0064 in.)
0.110 mm (0.0045 in.)
TORQUE SPECIFICATIONS
Part tightened
NVm
kgfVcm
ftVlbf
Turbocharger x Turbine outlet elbow 25 250 18
Turbo water pipe x Turbocharger 8.8 90 78 in.Vlbf
Side bearing housing plate x Turbocharger 8.8 90 78 in.Vlbf
No.2 air tube x No.2 turbocharger 21 210 15
Turbocharger x Exhaust manifold
54
550
40
Turbo oil pipe x Turbocharger 21 210 15
Turbo oil pipe x Cylinder block 39 400 29
Turbocharger stay x Turbocharger 43 440 32
Turbocharger stay x Cylinder block
43
440
32
Exhaust gas control valve x Turbine outlet elbow 69 700 51
Main heated oxygen sensor x Exhaust gas control valve 20 200 14
Exhaust gas control valve stay x Exhaust gas control valve 43 440 32
Exhaust gas control valve stay x Cylinder block
43
440
32
Exhaust bypass pipe x Turbine outlet elbow 25 250 18
Exhaust bypass pipe x Exhaust gas control valve 25 250 18
Intake air control valve x No.2 turbocharger 21 210 15
No.4 air tube x No.1 turbocharger
21
210
15
No.1 air tube x No.1 turbocharger
21
210
15
No.2 front exhaust pipe x Exhaust gas control valve 62 630 46
Front exhaust pipe x No.2 front exhaust pipe 58 590 43
Pipe support bracket x Transmission 43 440 32
Upper front crossmember extension x Front suspension Bolt
Nut
29
33
300
340
22
25
Front lower arm bracket stay x Front suspension Bolt
Nut
44
59
450
600
33
43
CAC duct x CAC 4.9 50 43 in.Vlbf
CAC x Body 13 135 10
EG±162± ENGINETURBOCHARGER SYSTEM (2JZ±GTE)
