2001 Lexus LS 430FACTORY OEM SERVICE PROCEDURE

Torque When Using Torque Wrench With Extension Tool

WARNING: This page is about a different car, the 2004 Lexus LS 430. However, it is still accessible from the selected car via links, so may be relevant.
  1. If SST or an extension tool is combined with the torque wrench to extend its length, do not tighten the torque wrench to the specified torque values in this article. The actual torque will be excessive.
  2. Use the formula below to calculate special torque values for situations where SST or an extension tool is combined with the torque wrench.
    Fig 1: Identifying Length Of Extension Tool And Torque Wrench (1 Of 2)
    G03693761Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. Formula: T'=T x L2/ (L1 + L2)
    TORQUE VALUE FORMULA DESCRIPTION

    T' Reading of torque wrench {N.m (kgf.cm, ft.lbf)}
    T Torque {N.m (kgf.cm, ft.lbf)}
    L1 Length of SST or extension tool (cm)
    L2 Length of torque wrench (cm)
    Fig 2: Identifying Length Of Extension Tool And Torque Wrench (2 Of 2)
    G03693762Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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