Workshop Manuals Factory service & repair Lexus
01 Relays and Modules02 Sensors and Switches03 Maintenance04 Engine, Cooling and Exhaust05 Powertrain Management06 Transmission and Drivetrain07 Brakes and Traction Control08 Starting and Charging09 Power and Ground Distribution10 Steering and Suspension11 Heating and Air Conditioning12 Restraint Systems13 Accessories and Optional Equipment14 Body and Frame15 Cruise Control16 Instrument Panel, Gauges and Warning Indicators17 Lighting and Horns18 Windows and Glass19 Wiper and Washer Systems
Lexus GS 400 V8-4.0L (1UZ-FE) (1999)03 · Maintenance
03 · Maintenance

Timing Belt: Diagrams (page 17 of 19)

Make
Lexus
Model
GS 400
Engine
V8-4.0L (1UZ-FE)
Year
1999
Section
Timing Belt
MaintenanceDiagrams · page 17 of 19
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b. Slowly turn the crankshaft pulley 2 revolutions from TDC to TDC.

NOTICE:  Always turn the crankshaft pulley clockwise.

c. Check that each pulley aligns with the timing marks as shown in the illustration.

If the timing marks do not align, remove the timing belt and reinstall it.

20. TIGHTEN CRANKSHAFT PULLEY BOLT

Using SST, install the pulley bolt.
SST 09213-70010, 09330-00021
Torque: 245 Nm (2,500 kgf.cm, 181 ft. lbs.)

21. INSTALL NO.1 DRIVE BELT IDLER PULLEY

Install the idler pulley with the 2 bolts and 2 nuts. 
Torque:
16 Nm (160 kgf.cm, 12 ft. lbs.) for 12 mm head 
32 Nm (330 kgf.cm, 24 ft. lbs.) for 14 mm head
 

HINT:  Each bolt length is indicated in the illustration. 

Bolt Length:

106 mm (4.17 inch) for 12 mm head (A)
114 mm (4.49 inch) for 14 mm head (B)

Pass the engine wire for the crankshaft position sensor between the idler pulley and oil pump.

Pinch or Ctrl + scroll to zoom. Double-tap to reset.

Parts & tools for this job For 1999 Lexus GS 4.0L

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