1991 LEXUS SC400 Service Repair Manual

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Page 2065 of 4087

LEXUS SC400 1991 Service Repair Manual REMOVAL OF INJECTORS (See Components on page FI±27 ) 1. DISCONNECT CABLE FROM NEGATIVE TERMINAL OF BATTERY CAUTION: Turn the ignition switch to ºLOCKº. Disconnect the cable from the negative (±

Page 2066 of 4087

LEXUS SC400 1991 Service Repair Manual 7. DISCONNECT VACUUM SENSING HOSE FROMPRESSURE REGULATOR 8. DISCONNECT INJECTOR CONNECTORS 9. DISCONNECT CONTROL VALVE ACTUATOR Remove the two bolts and turn the actuator sideways. HINT: Wrap the a

Page 2067 of 4087

LEXUS SC400 1991 Service Repair Manual INSPECTION OF INJECTORS 1. INSPECT INJECTOR INJECTIONCAUTION: Keep injector clear of sparks during the test. (a) Remove the two bolts and fuel hose clamp. (b) Disconnect the fuel inlet hose from th

Page 2068 of 4087

LEXUS SC400 1991 Service Repair Manual (g) Install the grommet and a new O±ring to the injector. (h) Connect SST (hose) to the injector with SST (union),and hold the injector and union with SST (clamp). SST 09268±41045 (i) Put the i

Page 2069 of 4087

LEXUS SC400 1991 Service Repair Manual (e) Install the fuel hose clamp with the two bolts. INSTALLATION OF INJECTORS (See Components on page FI±27) 1. INSTALL INJECTORS AND DELIVERY PIPE (a) Install the grommet to each injector. (b)

Page 2070 of 4087

LEXUS SC400 1991 Service Repair Manual (g) Temporarily install the three bolts holding the deliverypipe to the cylinder head. (h) Check that the injectors rotate smoothly. HINT: If injectors do not rotate smoothly, the probable cause is

Page 2071 of 4087

LEXUS SC400 1991 Service Repair Manual 5. INSTALL AIR INTAKE CHAMBER STAYSInstall the intake chamber stay with the bolt and nut. Install the No. 1 and No. 2 stays. Torque: 18 N Vm (185 kgf Vcm, 13 ft Vlbf) HINT: The No. 1 stay is mar

Page 2072 of 4087

LEXUS SC400 1991 Service Repair Manual Fuel Pressure Pulsation Damper COMPONENTS FOR REMOVAL AND INSTALLATION REMOVAL OF FUEL PRESSURE PULSATION DAMPER 1. (A/T)REMOVE DIPSTICK GUIDE FOR TRANSMISSION (a) Remove the mounting bolt. (b) P u
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