1991 LEXUS SC400 Service Repair Manual

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Page 2265 of 4087

LEXUS SC400 1991 Service Repair Manual (b) Remove the two mounting bolts and two mounting nuts,and disconnect the throttle body from the air intake chamber. (c) Disconnect the following hoses, and remove the throttle body: (1) PCV hose

Page 2266 of 4087

LEXUS SC400 1991 Service Repair Manual (c) Remove the two bolts and gaskets, and disconnect theEGR pipe from the air intake chamber. (d) Remove the four mounting bolts, eight mounting nuts and following parts: (1) VSV for fuel pressure

Page 2267 of 4087

LEXUS SC400 1991 Service Repair Manual 24. DISCONNECT EGR PIPE FROM RH CYLINDER HEADRemove the bolt holding the EGR pipe to the RH cylinder head, and disconnect the EGR pipe. 25. DISCONNECT ENGINE WIRE FROM INTAKE MANIFOLD Remove the t

Page 2268 of 4087

LEXUS SC400 1991 Service Repair Manual 27. REMOVE FUEL RETURN PIPE(a) Remove the bolt holding the fuel return pipe to the rearside of the LH cylinder head. (b) Remove the union bolt, two gaskets and return pipe. 28. REMOVE DELIVERY PI

Page 2269 of 4087

LEXUS SC400 1991 Service Repair Manual (c) Remove the four nuts, water by±pass joint and twogaskets. 31. REMOVE REAR WATER BY±PASS JOINT (a) Remove the bolt holding the water by±pass pipe to theengine hanger. (b) Remove the four nu

Page 2270 of 4087

LEXUS SC400 1991 Service Repair Manual 37. DISCONNECT ENGINE WIRE FROM LH CYLINDER HEAD Remove the five bolts, and disconnect the engine wire. 38. REMOVE ENGINE HANGERS Remove the two bolts and engine hanger. Remove the two engine hanger

Page 2271 of 4087

LEXUS SC400 1991 Service Repair Manual (c) Set the timing mark (one dot mark) of the camshaftdriven gear at approx. 105 angle by turning the hexagon wrench head portion of the exhaust camshaft with a wrench. (d) Alternately loosen and

Page 2272 of 4087

LEXUS SC400 1991 Service Repair Manual C. Remove exhaust camshaft from LH cylinder head(a) Bring the service bolt hole of the driven s ub±gear upward by turning the hexagon wrench head portion of the exhaust camshaft with a wrench. (b)
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