1991 LEXUS SC400 Service Repair Manual

Page 2897 of 4087

LEXUS SC400 1991  Service Repair Manual 
6.  REMOVE UPPER HIGH±TENSION CORD COVER(a)  Remove the two mounting bolts.
(b)  Disconnect  the front side claw groove of the cord coverfrom the claw of the lower cover, and remove the cord
cover.

Page 2898 of 4087

LEXUS SC400 1991  Service Repair Manual 
11.  REMOVE LH NO.3 TIMING BELT COVER(a)  Remove the four mounting bolts.
(b) Disconnect   the cord grommet from the timing belt cover,
and remove the timing belt cover.
(c)  Remove the cord grommet

Page 2899 of 4087

LEXUS SC400 1991  Service Repair Manual 
(2)  Water by±pass hose from ISC valve
(3) (USA Spec.)Vacuum hose from throttle body
(4)  (Exc. USA Spec.)
Three vacuum hoses from throttle body
(c)  Remove the two bolts and two nuts, disconnect th

Page 2900 of 4087

LEXUS SC400 1991  Service Repair Manual 
15. DISCONNECT HOSESDisconnect the following hoses:(1)  Water by±pass hose (from water inlet housing) from ISC valve
(2) Vacuum  hose (from PS air control valve) from air in-
take chamber
(3)  Vacuu

Page 2901 of 4087

LEXUS SC400 1991  Service Repair Manual 
(b)  Remove the union bolt and two gaskets, and disconnectthe cold start injector tube from the RH delivery pipe.
(c)  Remove the two bolts and gasket, and disconnect the EGR pipe from the air intake

Page 2902 of 4087

LEXUS SC400 1991  Service Repair Manual 
19.  DISCONNECT EGR PIPE FROM RH CYLINDER HEADRemove the bolt holding the EGR pipe to the cylinder head,
and disconnect the EGR pipe.
20.  DISCONNECT ENGINE WIRE FROM INTAKE MANIFOLD Remove the two b

Page 2903 of 4087

LEXUS SC400 1991  Service Repair Manual 
22.  REMOVE FUEL RETURN PIPE(a)  Remove the bolt holding the return pipe to the LHcylinder head.
(b)  Remove the union bolt, two gaskets and return pipe.
23. REMOVE DELIVERY PIPES AND INTAKE MANIFOLD

Page 2904 of 4087

LEXUS SC400 1991  Service Repair Manual 
27. REMOVE STARTER(a)  Remove the two bolts holding the starter to the cylinderblock.
(b)  Disconnect the starter connector.
(c)  Remove the nut, and disconnect the starter wire.
(d)  Disconnect  the