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Lexus GS 400 V8-4.0L (1UZ-FE) (1999)03 · Maintenance
03 · Maintenance

Timing Belt: Diagrams (page 8 of 19)

Make
Lexus
Model
GS 400
Engine
V8-4.0L (1UZ-FE)
Year
1999
Section
Timing Belt
MaintenanceDiagrams · page 8 of 19
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Check that there are 3 installation marks on the timing belt by turning the crankshaft pulley as shown in the illustration.

HINT:  If the installation marks have disappeared, place a new installation mark on the timing belt before removing each part.

16. LOOSEN CRANKSHAFT PULLEY BOLT

Using SST, loosen the pulley bolt.
SST 09213-70010, 09330-00021

17. SET NO.1 CYLINDER TO APPROX. 50° ATDC/COMPRESSION

a. Turn the crankshaft pulley and align its groove with timing mark "0" of the No.1 timing belt cover.

b. Check that the timing marks of the camshaft timing pulleys and timing belt rear plates aligned.

If not, turn the crankshaft 1 revolution (360°).

c. Turn the crankshaft pulley approx. 50° clockwise, and put the timing mark of the crankshaft pulley in line with the centers of the crankshaft

pulley bolt and the No.2 timing belt idler pulley bolt.

NOTICE:  If the timing belt is disengaged, having the crankshaft pulley at the wrong angle can cause the piston head and valve head to come
into contact with each other when you remove the camshaft timing pulley (step 15), causing damage. So always set the crankshaft pulley at the
correct angle.

d. Remove the crankshaft pulley bolt.

NOTICE:  Do not turn the crankshaft pulley.

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

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