2003 LEXUS LS430 Factory Repair Manual

Page 3657 of 4500

LEXUS LS430 2003  Factory Repair Manual 2. Install the camshaft timing tube to the camshaft (see OVERHAUL ).  
3. Install the camshaft and No. 2 camshaft without installing the camshaft sub-gear and front 
bearing cap (see OVERHAUL
 ).  
4.

Page 3658 of 4500

LEXUS LS430 2003  Factory Repair Manual 2. Using a dial indicator, measure the circle runout at the center journal.  
Maximum circle runout: 0.08 mm (0.0031 in.)  
If the circle runout is greater than the maximum, replace the No. 2 camshaft

Page 3659 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 374: Measuring Cam Lobe Height Using Micrometer 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
c. Using a micrometer, measure the journal diameter. 
Journal diameter: 26.954 to 26.970 mm (1.0612

Page 3660 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 375: Measuring Journal Diameter Using Micrometer 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
d. Check the oil clearance. 
1. Clean the bearing caps and journals.  
2. Check the bearings for fl

Page 3661 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 376: Checking Oil Clearance 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
6. Remove the bearing caps.  
7. Measure the Plastigage at its widest point. 
Standard oil clearance:  
0.030 to 0.067 m

Page 3662 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 377: Measuring Plastigage At Widest Point 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
e. Check the thrust clearance.  
1. Install the camshaft (see OVERHAUL
 ).  
2. Using a dial indicator, me

Page 3663 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 378: Measuring Thrust Clearance Using Dial Indicator 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
3. Remove the No. 2 camshaft.  
j.INSPECT NO.3 CAMSHAFT SUB-ASSY 
a. Inspect the circle runout.

Page 3664 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 379: Measuring Circle Runout Center Journal Using Dial Indicator 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
b. Using a micrometer, measure the cam lobe height. 
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