Lexus IS250 · Service Manual STEERING

REASSEMBLY

Removal / installation

NOTICE:
When installing, coat the parts indicated by arrows with lithium soap base glycol grease (Click here).


1. INSTALL STEERING RACK END SUB-ASSEMBLY

  1. Install 2 new claw washers.

    HINT:
    Align the claws of the claw washer with the steering rack grooves.

  1. C115524E01
    Using 2 SST, install the steering rack end sub-assembly (RH side).
    SST
    09922-10010  

    Torque:
    76 N*m{ 775 kgf*cm , 56 ft.*lbf }

    NOTICE:
    1. Use SST 09922-10010 following the direction shown in the illustration.
    2. Use a torque wrench with a fulcrum length of 345 mm (13.58 in.).

    HINT:
    Using SST, hold the steering rack and install the steering rack end sub-assembly.

  1. C115525E01
    Using 2 SST, install the steering rack end sub-assembly (LH side).
    SST
    09922-10010  

    Torque:
    76 N*m{ 775 kgf*cm , 56 ft.*lbf }

    NOTICE:
    1. Use SST 09922-10010 following the direction shown in the illustration.
    2. Use a torque wrench with a fulcrum length of 345 mm (13.58 in.).

    HINT:
    Using SST, hold the steering rack and install the steering rack end sub-assembly.

  1. C100974
    Using a brass bar and a hammer, stake the 2 claw washers.

    NOTICE:
    Avoid any impact to the steering rack.


2. INSTALL NO. 1 STEERING RACK BOOT

  1. C100988
    Apply lithium soap base glycol grease to the inside of the small opening of the No.1 steering rack boot (LH side).

  1. C100975E03
    Temporarily install a new No. 1 steering rack boot clamp to the large opening of the No. 1 steering rack boot (LH side) at the position shown by arrow (A).

    NOTICE:
    1. Use a new No. 1 steering rack boot clamp.
    2. Do not expand the No. 1 steering rack boot clamp more than necessary for installation.
    3. Do not deform the No. 1 steering rack boot clamp.
    4. Tightening force of the No. 1 steering rack boot clamp becomes uneven if it is installed after being expanded as shown in the illustration. As a result, rust is caused by water entering from the clearance between the No. 1 steering rack boot and rack housing, causing a malfunction.
    5. Use only the supply parts which are applicable to the vehicle to secure the No. 1 steering rack boot.

    HINT:
    After disengaging the claw of a new No. 1 steering rack boot clamp, temporarily install it from the end without expanding the clamp diameter more than necessary.

  1. Install the No. 1 rack boot (LH side) to the groove on the rack housing.

    NOTICE:
    1. Be careful not to damage or twist the No. 1 steering rack boot.
    2. Do not damage the No. 1 steering rack boot (LH side).
    3. Ensure that the No. 1 steering rack boot clamp is installed before installing the No. 1 steering rack boot (LH side) to the rack housing.

  1. Install the RH side by using the same procedure as for the LH side.


3. INSTALL NO. 1 STEERING RACK BOOT CLAMP

  1. C107884E02
    Using pliers and a screwdriver, install the No. 1 steering rack boot clamp (LH side).

    NOTICE:
    1. Be careful not to damage the steering rack boot.
    2. Do not twist the steering rack boot.

    HINT:
    Make sure that the protrusion of the steering rack boot clamp is positioned within the area shown in the illustration.

  1. Install the RH side by using the same procedure as for the LH side.


4. INSTALL STEERING RACK BOOT CLIP

  1. Using pliers, install the 2 steering rack boot clips.

  1. C105581E01
    Using SST, turn the pinion and check that the rack boots expand and contract smoothly.
    SST
    09616-00011  


5. INSTALL TIE ROD END LH

  1. C110352E01
    Install the lock nut and the tie rod end LH to the rack end until the matchmarks are aligned.

    HINT:
    After adjusting toe-in, torque the lock nut.


6. INSTALL TIE ROD END RH

HINT:
Perform the same procedure as for the LH side.

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