1991 LEXUS SC400 Service Repair Manual

Page 1505 of 4087

LEXUS SC400 1991  Service Repair Manual 
(l)  Install the accelerator bracket with the bolt and stud bolt.
(m)  Install 2 new gaskets and union with the union bolt.
Torque: 29 NVm (300 kgf Vcm, 22 ft Vlbf)
(n)  Connect the following hoses:

Page 1506 of 4087

LEXUS SC400 1991  Service Repair Manual 
30. INSTALL HEATER WATER VALVE
(a)  Install the water valve and bracket assembly with the 2 bolts.
(b)  Install the engine wire with the bolt.
(c)  Connect the VSV connector.
31.  INSTALL IAC VALVE
(

Page 1507 of 4087

LEXUS SC400 1991  Service Repair Manual 
33. California:INSTALL EGR VALVE
(a)  Place a new gasket on the EGR valve apaptor.
NOTICE:
w Do not touch the adaptor and EGR valve surfaces of the
gasket with your hand.
w Align  the port holes of t

Page 1508 of 4087

LEXUS SC400 1991  Service Repair Manual 
(c)  Connect the following hoses:(1) Water bypass hose to IAC valve
(2) Water bypass hose to water bypass pipe(from rear water bypass joint)
(3) 2 vacuum hoses to VSV for EGR
(d)  Install the hose cl

Page 1509 of 4087

LEXUS SC400 1991  Service Repair Manual 
36.  INSTALL TIMING BELT REAR PLATESInstall the rear plate with the 2 bolts. Install the 2 rear plates.
Torque: 7.8 N Vm (80 kgf Vcm, 69 in. Vlbf)
37.  INSTALL WATER INLET AND INLET HOUSING
(a)  Remo

Page 1510 of 4087

LEXUS SC400 1991  Service Repair Manual 
(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 CABL

Page 1511 of 4087

LEXUS SC400 1991  Service Repair Manual 
(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 V

Page 1512 of 4087

LEXUS SC400 1991  Service Repair Manual 
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, f