1991 LEXUS SC400 Service Repair Manual

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LEXUS SC400 1991  Service Repair Manual 
DISASSEMBLY OF OIL PUMP
(See Components on page LU±12)
1.  REMOVE RELIEF VALVE (a)  Slighty mount the pump body in a vise.
(b)  Remove the plug, gasket, compression spring and reliefvalve.
NOTICE: B

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LEXUS SC400 1991  Service Repair Manual 
C.  Inspect rotor body clearanceUsing a feeler gauge, measure the clearance between the
driven rotor and pump body.
Standard body clearance: 0.100±0.175 mm
(0.0039±0.0069 in.)
Maximum body clearanc

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LEXUS SC400 1991  Service Repair Manual 
2. INSTALL RELIEF VALVE(a)  Slighty mount the pump body in a vise.
NOTICE: Be careful not to damage the pump body.
(b) Insert  the relief valve and compression spring into the oil
pump body hole.
(c)

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LEXUS SC400 1991  Service Repair Manual 
(d) Install the oil pump with the seven bolts (A) and two bolts
(B).
Torque:     21 N Vm (210 kgf Vcm, 15 ft Vlbf)
HINT: Hand tighten the (A) bolts first.
2.  INSTALL NO.1 OIL PAN (a) Place a  new O

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LEXUS SC400 1991  Service Repair Manual 
3.  INSTALL OIL PAN BAFFLE PLATEInstall the baffle plate with the five bolts and two nuts.
Torque:     8.8 N Vm (90 kgf Vcm, 78 in. Vlbf)
4.  INSTALL OIL STRAINER
Install a new gasket and the oil str

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LEXUS SC400 1991  Service Repair Manual 
6.  INSTALL OIL LEVEL SENSOR(a)  Install a new gasket to the level sensor.
(b)  Install the level sensor with the four bolts.
Torque:     5.4 N Vm (55 kgf Vcm, 48 in. Vlbf)
(c)  Connect the level sen

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LEXUS SC400 1991  Service Repair Manual 
SERVICE SPECIFICATIONS
SERVICE DATA
MA002±0B 








Engine 








Spark plug
Recommended spark plug
Corr

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LEXUS SC400 1991  Service Repair Manual 
MAINTENANCE
GENERAL NOTES:
wThere are 2 separate maintenance schedules,
namely A and B, which apply to different driving
conditions. Find out how the vehicle is driven,
select the appropriate schedul