1991 LEXUS SC400 Service Repair Manual

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Page 2257 of 4087

LEXUS SC400 1991 Service Repair Manual 37. INSTALL A/C COMPRESSOR(a) In sta ll th e A/C co mp re sso r, co mp re sso r sta y an dground cable with the three bolts and nut. Torque: Bolt 49 N Vm (500 kgf Vcm, 36 ft Vlbf) Nut 29 N Vm (300

Page 2258 of 4087

LEXUS SC400 1991 Service Repair Manual CYLINDER HEADS COMPONENTS FOR REMOVAL AND INSTALLATION EM±58± ENGINE MECHANICAL Cylinder Heads WhereEverybodyKnowsYourName

Page 2259 of 4087

LEXUS SC400 1991 Service Repair Manual COMPONENTS FOR REMOVAL AND INSTALLATION (Contd) ± ENGINE MECHANICAL Cylinder HeadsEM±59 WhereEverybodyKnowsYourName

Page 2260 of 4087

LEXUS SC400 1991 Service Repair Manual REMOVAL OF CYLINDER HEADS (See Components on pages EM±58 and 59) 1. DISCONNECT TIMING BELT FROM CAMSHAFT TIMING PULLEYS (See steps 1 to 28 on pages EM±35 to 42) 2. REMOVE CAMSHAFT TIMING PULLEYS

Page 2261 of 4087

LEXUS SC400 1991 Service Repair Manual 5. REMOVE THROTTLE BODY COVER(a) Remove the mounting cap nut. (b) Loosen the two bolts, and remove the throttle bodycover. 6. DISCONNECT CONTROL CABLES FROM THROTTLE BODY Disconnect the followi

Page 2262 of 4087

LEXUS SC400 1991 Service Repair Manual 9. REMOVE TIMING BELT REAR PLATESRemove the two bolts and rear plate. Remove the two rear plates. 10. REMOVE VACUUM PIPE (a) Disconnect the following hoses:(1) (USA Spec.) Vacuum hose from throttle

Page 2263 of 4087

LEXUS SC400 1991 Service Repair Manual 11. (USA Spec.)REMOVE EGR VALVE (a) Disconnect the EGR valve connector. (b) Disconnect the following hoses:(1) Water by±pass pipe hose from ISC valve (2) Water by±pass hose from water by±pass pi

Page 2264 of 4087

LEXUS SC400 1991 Service Repair Manual (b) Remove the two bolts, two nuts, adaptor and gasket. (c) (USA Spec. only)Disconnect the EGR gas temperature sensor connec- tor. 14. REMOVE ISC VALVE (a) Disconnect the ISC valve connector. (b
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