2003 Toyota PriusFACTORY OEM SERVICE PROCEDURE

Hybrid Transaxle Assembly: Reassembly

  1. INSPECT ROTOR BUSH OF MG2 ASSEMBLY 

    Using a dial indicator, measure the inside diameter of the rotor bush.

    Standard diameter: 

    • 20.025 - 20.046 mm (0.78838 - 0.78921 in.) 

    Maximum diameter: 

    • 20.096 mm (0.79118 in.) 

    If the inside diameter exceeds the limit, replace the MG2 assembly.

    Fig 1: Measuring Inside Diameter Of Rotor Bush Using Dial Indicator
    G03431101Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. PLACE WOOD BLOCK UNDER MG1 ASSEMBLY TO STABILIZE 
    Fig 2: Placing Wood Block Under MG1 Assembly
    G03431102Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. INSTALL DRAIN PLUG AND SCREW PLUG (MG1 side) 
    1. Apply liquid sealer to the screw plug and install it to the MG1 assembly with a hexagon wrench.

      Sealant: 

      • Part No. 08833-00080, TREE BOND 1344, LOCTITE 242 or equivalent 

      Torque:  12.7 N.m (130 kgf.cm, 9 ft.lbf)

    2. Install a new gasket and the drain plug.

      Torque:  39 N.m (400 kgf.cm, 29 ft.lbf)

      Fig 3: Installing Drain Plug & Screw Plug (MG1 Side)
      G03431103Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  4. PLACE WOOD BLOCK UNDER MG2 ASSEMBLY 
    NOTE: Be careful not to bend the parking lock rod. 
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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.

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