idler tensioner pulley LEXUS LS430 2003 Factory Repair Manual

Fig. 8: Removing Fan And Generator V Belt
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
3.INSTALL FAN AND GENERATOR V BELT
a. Set the V belt to everything except the idler pulley No. 2, as shown in the illustration.
b. Loosen the V belt by turning the belt tensioner counterclockwise.
c. Then set the V belt to the idler pulle
y.

Fig. 83: Removing Cover And Gasket
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
7.REMOVE IDLER PULLEY ASSY
a. Remove the 2 bolts, 2 nuts and idler pulley.
8.REMOVE TIMING BELT COVER SUB-ASSY NO.2
a. Remove the 2 bolts and timing belt cover.
9.REMOVE IDLER PULLEY SUB-ASSY NO.2
a. Remove the pulley bolt, cover plate and idler pulley.
10.REMOVE V-RIBBED BELT TENSIONER ASSY
a. Remove the bolt, 2 nuts and belt tensioner.
11.REMOVE CRANKSHAFT DAMPER SUB-ASSY
a. Using SST, remove the damper bolt.
SST 09213-70011, 09330-00021

Fig. 91: Checking Timing Belt
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
c. If there is noticeable wear or cracks on the belt face, check to see if there are nicks on the side of
the idler pulley lock and water pump.
d. If there is wear or damage on only one side of the belt, check the belt guide and the alignment of
each pulley.
e. If there is noticeable wear on the belt teeth, check the timing cover for damage, check that the
gasket has been installed correctly, and check for foreign material on the pulley teeth.
If necessary, replace the timing belt.
17.INSPECT TIMING BELT TENSIONER
a. Visually check the seal portion of the tensioner for oil leakage.
HINT:
If there is only the faint trace of oil on the push rod, the tensioner does not need to be replaced.
If leaka
ge is found, replace the tensioner.

Fig. 177: Installing Damper Bolt Using SST
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
78.ADJUST VALVE CLEARANCE (See ADJUSTMENT
)
79.INSTALL V-RIBBED BELT TENSIONER ASSY
a. Install the belt tensioner with the bolt and 2 nuts.
Torque: 16 N.m (163 kgf.cm, 11 ft.lbf)
HINT:
Use a bolt that is 106 mm (4.18 in.) in length.
80.INSTALL IDLER PULLEY SUB-ASSY NO.2
a. Install the idler pulley and cover plate with the bolt.
Torque: 39 N.m (398 kgf.cm, 29 ft.lbf)
81.INSTALL TIMING BELT COVER SUB-ASSY NO.2
a. Fit the timing belt cover, matching the claws and pin with each part.
b. Install the timing belt cover with the 2 bolts.
Torque: 16 N.m (163 kgf.cm, 12 ft.lbf)

10. Connect the timing belt to the idler No.1.
Fig. 200: Aligning Timing Marks Of Crankshaft Timing Pulley And Oil Pump Body

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
29. Set the belt tensioner.
1. Using a press, slowly press in the push rod using 981 to 9,807 N (100 to 1,000 kgf, 220 to 2,205
lbf) of pressure.
2. Align the holes of the push rod and housing. Pass a 1.27 mm hexagon wrench through the holes to
keep the setting position of the push rod.
3. Release the press.
4. Install the dust boot to the belt tensioner.

Fig. 208: Installing Idler Pulley And Bolts
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
HINT:
Each bolt length is indicated below.
Bolt length:
114 mm (4.49 in.) for 14 mm head (A)
106 mm (4.17 in.) for 12 mm head (B)
36.INSTALL V-RIBBED BELT TENSIONER ASSY
a. Install the belt tensioner with the bolt and 2 nuts.
Torque: 16 N.m (163 kgf.cm, 12 ft.lbf)
HINT:
Use a bolt that is 106 mm (4.18 in.) in length.