1991 LEXUS SC400 transmission

30. REMOVE OIL DIPSTICK AND GUIDE FORTRANSMISSION
(a) Remove the bolt holding the oil dipstick to the LH cylinder head.
(b) Pull out the dipstick guide together with the dipstick from the oil pan.
(c) Remove the O±ring from the dipstick guide.
31. REMOVE OIL DIPSTICK AND GUIDE FOR ENGINE
32. REMOVE EGR PIPE
(a) Remove the 2 bolts holding the EGR pipe to the RH exhaust pipe.
(b) Remove the EGR pipe and gasket.
33. DISCONNECT ENGINE WIRE FROM CYLINDER HEADS
(a) Remove the 2 bolts, and disconnect the engine wire protector
from the RH cylinder head.
(b) Remove the bolt, and disconnect the ground strap from the RH cylinder head.
(c) Remove the 5 bolts, and disconnect the engine wire protector
from the LH cylinder head.
34. REMOVE ENGINE HANGERS Remove the 2 bolts and engine hanger. Remove the 2 engine
hangers.
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(c) Install the engine wire protector to the LH cylinder head withthe 5 bolts.
14. INSTALL EGR PIPE Install a new gasket and EGR pipe to the RH exhaust man-
ifold with 2 new nuts.
Torque: 18 N Vm (185 kgf Vcm, 13 ft Vlbf)
15. INSTALL OIL DIPSTICK AND GUIDE FOR ENGINE
(a) Install a new O±ring to the dipstick guide.
(b) Apply soapy water to the O±ring.
(c) Push in the dipstick guide end into the guide hole of the No.1
oil pan.
(d) Install the dipstick guide with the bolt.
(e) Install the dipstick.
16. I N S TA L L O I L D I P S T I C K A N D G U I D E F O R TRANSMISSION
17. INSTALL REAR WATER BYPASS JOINT
(a) Install 2 new gaskets and the water bypass joint with the 4 nuts. Alternately tighten the nuts.
Torque: 18 N Vm (185 kgf Vcm, 13 ft Vlbf)
(b) Install the water bypass pipe to the LH rear engine hanger
with the bolt.
18. INSTALL FRONT WATER BYPASS JOINT
(a) Install 2 new gaskets and the water bypass joint with the 4 nuts. Alternately tighten the nuts.
Torque: 18 N Vm (185 kgf Vcm, 13 ft Vlbf)
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(d) Install a new gasket to the EGR pipe.
(e) Temporarily connect the EGR pipe to the air intake chamberwith the 2 bolts.
HINT: Use bolt 20 mm (0.79 in.) in length.
(f) Temporarily install the air intake and and following parts with the 4 bolts and 8 nuts:
(1) VSV for fuel pressure control
(2) Except California:VSV for EGR
(3) Transmission throttle cable bracket
(4) DLC1
(g) Uniformly tighten the bolts and nuts several passes.
Torque: 18 N Vm (185 kgf Vcm, 13 ft Vlbf)
HINT: Use bolt 40 mm (1.57 in.) in length.
(h) Tighten the 2 bolts holding the EGR pipe to the air intake chamber.
Torque: 18 N Vm (185 kgf Vcm, 13 ft Vlbf)
(i) Tighten the bolt holding the EGR pipe to the RH cylinder
head.
Torque: 18 N Vm (185 kgf Vcm, 13 ft Vlbf)
(j) Connect the cold start injector tube to the RH delivery pipe
with 2 new gaskets and the union bolt.
Torque: 15 N Vm (150 kgf Vcm, 11 ft Vlbf)
(k) Connect the following connectors:
wCold start injector connector
w VSV connector for fuel pressure control
w Except California:
VSV connector for EGR
EG±128
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(g) Connect the water bypass hose to the IAC valve.
38. INSTALL RH IGNITION COIL
(a) Install the ignition coil with the 2 bolts.
(b) Connect the ignition coil connector.
39. CONNECT CONTROL CABLES TO THROTTLE BODYConnect the following cables:
(1) Accelerator cable
(2) Transmission throttle control cable
(3) Cruise control actuator cable
40. INSTALL THROTTLE BODY COVER
(a) Install the thro ttle body cover and hose clamp with the cap nut
and 2 bolts.
(b) Install the EVAP hose to the hose clamp.
41. INSTALL POWER STEERING (PS) PUMP
(a) Install the PS pump with the nut and 3 bolts. Alternately tighten the bolts and nut.
Torque:
39 NVm (400 kgf Vcm, 29 ft Vlbf) for bolt
43 N Vm (440 kgf Vcm, 32 ft Vlbf) for nut
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(b) Connect the vacuum hose to the air intake chamber.
42. INSTALL TWC (FRONT)
(a) Using a 14 deep socket wrench, install a new gasket and theTWC with 3 new nuts. Install the 2 TWC.
Torque: 62 N Vm (630 kgf Vcm, 46 ft Vlbf)
(b) Te m p o r a r i l y i n s t a l l t h e p i p e s upport bracket to the
transmission with the 4 bolts.
(c) Install a new gasket to each front end of the front exhaust
pipe.
(d) Connect the front exhaust pipe to the 2 TWC with the 4 bolts and 4 new nuts.
Torque: 43 N Vm (440 kgf Vcm, 32 ft Vlbf)
(e) Tighten the 4 bolts holding the pipe support bracket to the
transmission.
Torque: 43 N Vm (440 kgf Vcm, 32 ft Vlbf)
43. INSTALL HYDRAULIC PUMP
Install the hydraulic pump with the 2 bolts and 2 nuts.
Torque:
16 NVm (160 kgf Vcm, 12 ft Vlbf) for 12 mm head
30 N Vm (310 kgf Vcm, 22 ft Vlbf) for 14 mm head
HINT: Each bolt length is indicated in the illustration.
Bolt length:
106 mm (4.17 in.) for A of 12 mm head
114 mm (4.49 in.) for B of 14 mm head
44. INSTALL RH CAMSHAFT TIMING PULLEY
(a) Align the camshaft knock pin with the knock pin groove of the
timing pulley, and slide on the timing pulley.
(b) Slide the timing pulley on the camshaft, facing the ªRº mark forward.
(c) Using SST, install the pulley bolt. SST 09278±54012
Torque: 108 N Vm (1,100 kgf Vcm, 80 ft Vlbf)
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45. INSTALL LH CAMSHAFT TIMING PULLEY
(a) Align the camshaft knock pin with the knock pin groove of the
timing pulley, and slide on the timing pulley.
(b) Slide the timing pulley on the camshaft, facing the ªLº mark forward.
(c) Using SST, install the pulley bolt. SST 09278±54012
Torque: 108 N Vm (1,100 kgf Vcm, 80 ft Vlbf)
46. C O N N E C T T I M I N G B E LT TO C A M S H A F T T I M I N G
PULLEYS
(See steps 10 to 40 on pages EG±61 to 72)
47. CONNECT NEGATIVE TERMINAL CABLE TO BATTERY
48. FILL WITH ENGINE COOLANT
49. START ENGINE AND CHECK FOR LEAKS
50. CHECK TRANSMISSION FLUID LEVEL
51. PERFORM ENGINE ADJUSTMENT (See Tune±Up on pages EG±9 to 34)
52. PERFORM ROAD TEST Check for abnormal noise, shock, slipage, correct shift points
and smooth operation.
53. INSTALL ENGINE UNDER COVER
EG±136
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7. REMOVE THROTTLE BODY COVER
(a) Disconnect the EVAP hose from the hose clamp.
(b) Remove the cap nut.
(c) Loosen the 2 bolts, and remove the hose clamp and throttlebody cover.
8. DISCONNECT CONTROL CABLES TO THROTTLE BODY Disconnect the following cables:
(1) Accelerator cable
(2) Transmission throttle control cable
(3) Cruise control actuator cable
9. REMOVE AIR CLEANER
(a) Disconnect the VAF meter connector.
(b) Remove the hose clamp bolt holding the air cleaner hose to the intake air connector.
(c) Remove the 4 bolts.
(d) Disconnect the air cleaner hose from the intake air connector.
(e) Disconnect the air duct from the air cleaner case, and remove
the air cleaner.
10. D I S C O N N E C T VA CUUM HOSE (A) (FROM PS AIR
CONTROL VALVE) FROM AIR INTAKE CHAMBER
11. REMOVE INTAKE AIR CONNECTOR
(a) Disconnect the following hoses from the intake air connector:
(1) Air hose (from IAC valve)
(2) Air hose (from air control valve on PS pump)
(b) Remove the hose clamp bolt holding the intake air connector to the throttle body.
(c) Remove the bolt and intake air connector.
EG±140
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(3) 2 oil cooler hoses (for transmission) from radiator
HINT: Plug the hose ends.
(4) Suction hose from hydraulic pump
(5) Pressure hose from hydraulic pump
(d) Remove the 2 bolts, screw and upper radiator support. Remove the 2 upper radiator supports.
(e) Slightly lift the radiator, and disconnect the 2 oil cooler hoses (for cooling fan) from the hose clamp on the radiator fan
shroud.
(f) Remove the radiator assembly.
(g) Remove the 2 lower radiator supports from the radiator.
14. DISCONNECT IGNITER CONNECTORS
(a) Disconnect the 2 igniter connectors.
(b) Disconnect the wire clamp from the body.
EG±142
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