2008 Lexus IS FFACTORY OEM SERVICE PROCEDURE

Engine Assembly: Installation

  1. INSTALL FRONT ENGINE MOUNTING INSULATOR 
    1. Install the 2 engine mounting insulators with the 2 nuts

      Torque: 70 N*m (714 kgf*cm, 52 ft.*lbf) 

    2. Install the 2 engine mounting spacers
    Fig 1: Installing Front Engine Mounting Insulators
    G05749497Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. INSTALL FRONT SUSPENSION CROSSMEMBER SUB-ASSEMBLY 
    1. Install the front suspension crossmember sub-assembly with the 2 nuts

      Torque: 35 N*m (357 kgf*cm, 26 ft.*lbf) 

    Fig 2: Locating Front Suspension Crossmember Nuts
    G05749496Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. INSTALL DRIVE PLATE AND RING GEAR SUB-ASSEMBLY 
    1. Using SST, hold the crankshaft

      SST 09213-38010,09330-00021 

    2. Clean the 10 bolt holes.
      Fig 3: Holding Crankshaft Using SST
      G05749494Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Install the crankshaft angle sensor rotor.

      HINT

      Align the pin hole of the crankshaft angle sensor rotor with the pin of the crankshaft

      Fig 4: Aligning Pin Hole Of Crankshaft Angle Sensor Rotor With Pin Of Crankshaft
      G05749501Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Install the drive plate and ring gear sub-assembly and drive plate spacer RR on to the crankshaft.
      Fig 5: Identifying Drive Plate And Ring Gear
      G05749502Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. Uniformly install and tighten 10 new bolts in the sequence shown in the illustration.

      Torque: 30 N*m (301 kgf*cm, 22 ft.*lbf) 

      NOTE:
      • Do not reuse the drive plate and ring gear sub-assembly installation bolts.
      • Do not impact or damage the drive plate and ring gear sub-assembly installation bolts. Be sure to handle them carefully.
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.