Lexus IS250 · Service Manual TRANSMISSION

INSTALLATION

Removal / installation


1. INSTALL AUTOMATIC TRANSMISSION EXTENSION HOUSING OIL SEAL

  1. C115252E03
    Coat the lip of a new oil seal with MP grease.

  1. Using SST and a hammer, drive in a new oil seal.

    SST
    09325-40010  

    Oil seal drive in depth:
    5.4 to 5.8 mm (0.213 to 0.228 in.)

    NOTICE:
    1. Keep the lip free from foreign matter.
    2. Do not tap the oil seal at an angle.


2. INSTALL PROPELLER SHAFT WITH CENTER BEARING ASSEMBLY

  1. C109590E02
    Remove the SST from the transmission.
    SST
    09325-40010  

  1. Insert the yoke of the intermediate shaft into the transmission.

    HINT:
    Be careful not to damage the oil seal.

  1. F048233
    Install the 2 center support bearing washers and center support bearing. (for automatic transmission)

  1. Install the 2 center support bearing washers, center support bearing and 2 center support bearing dampers. (for manual transmission)

  1. Temporarily tighten the 2 bolts.

  1. C104521E02
    Align the matchmarks on the propeller shaft flange and differential companion flange, and connect the shaft with the 4 bolts, washers and nuts.

    Torque:
    74 N*m{ 750 kgf*cm , 54 ft.*lbf }

  1. C127022E01
    Adjust the dimension between the edge surface of the center support bearing and the edge surface of the cushion to 11.5 to 13.5 mm (0.4528 to 0.5315 in.) as shown in illustration.

  1. C109375E01
    Check that the center line of the bracket is perpendicular to the shaft axial direction.

  1. F048233
    Tighten the 2 bolts.

    Torque:
    49 N*m{ 500 kgf*cm , 36 ft.*lbf }


3. REMOVE OUTSIDE AIR GUIDE PLATE RH

  1. C126031
    Install the air guide plate outside RH with the 4 nuts.

    Torque:
    5.4 N*m{ 55 kgf*cm , 48 in.*lbf }


4. INSTALL FRONT FLOOR NO. 1 HEAT INSULATOR

  1. C125771E01
    Install the No. 1 heat insulator with the 4 nuts.

    Torque:
    5.4 N*m{ 55 kgf*cm , 48 in.*lbf }


5. INSTALL FRONT EXHAUST PIPE ASSEMBLY

  1. A077857
    Using a vernier caliper, measure the free length of the compression springs.

    Minimum length:
    38.5 mm (1.516 in.)

    If the free length is less than the minimum, replace the compression spring.

  1. A109513E09
    Install a new gasket to the rear end of the front exhaust pipe.

    NOTICE:
    1. Be careful with the installation direction of the gasket.
    1. Do not reuse the gasket.
    1. To ensure a proper seal, do not use the tail exhaust pipe to force the gasket onto the front exhaust pipe.

      HINT:
      Using a plastic hammer, uniformly strike the gasket so that the gasket and front exhaust pipe are properly fit.

  1. Install 3 new gaskets and front exhaust pipe assembly.

    CAUTION:
    Do not reuse the gaskets.

  1. A125008
    Install the 2 bolts and 2 compression springs.

    Torque:
    43 N*m{ 438 kgf*cm , 32 ft.*lbf }

  1. A127822E01
    Install 4 new nuts and 4 bolts.

    Torque:
    62 N*m{ 632 kgf*cm , 46 ft.*lbf }

    NOTICE:
    Do not reuse the nuts.


6. INSTALL OXYGEN SENSOR

  1. A119092
    Before installing the heated oxygen sensors, twist the sensor wires counterclockwise 4 turns.

  1. A123663E02
    Using the SST, install the heated oxygen sensors to the front exhaust pipe.
    SST
    09224-00010  

    Torque:
    44 N*m{ 449 kgf*cm , 33 ft.*lbf }

  1. After installing the sensors, check that the sensor wires are not twisted.
    If the sensor wires are twisted, reinstall them.

  1. A120539E05
    Install the grommets of the heated oxygen sensors.


7. INSTALL FRONT CENTER FLOOR BRACE

  1. C104834
    Install the front center floor brace with the 4 bolts.

    Torque:
    7.4 N*m{ 75 kgf*cm , 65 in.*lbf }


8. INSTALL REAR NO. 1 FLOOR PANEL BRACE

  1. A121036
    Install the rear No. 1 floor panel brace with the 4 bolts.

    Torque:
    19 N*m{ 194 kgf*cm , 14 ft.*lbf }


9. ADD AUTOMATIC TRANSMISSION FLUID
(Click here)

10. CHECK FOR EXHAUST GAS LEAKS
If exhaust gas is leaking, tighten the related parts to stop the leak. Replace damaged parts as necessary.

11. INSTALL NO. 2 ENGINE UNDER COVER
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