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Timing Chain: Installation

  1. Rotate crankshaft so that "O" mark on crankshaft sprocket is facing toward oil pan (see Fig 1). Now align oil pump drive sprocket mark with crankshaft sprocket mark (see Fig 1). Install tension sprocket assembly positioning straight pin 1.5" (38 mm) from cylinder block surface.
    Fig 1: Timing Mark Alignment
    G09326274Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. While pulling chain tight, position over sprockets, making sure chain is aligned with teeth on sprockets. Install chain vibration dampers and chain guide. Install crankshaft slinger and engine front cover. Pull up on chain to make sure it is still aligned with sprockets and tie chain tight against vibration damper.
  3. Install cylinder head and camshaft.
    CAUTION: Care must be taken not to rotate crankshaft while installing components.

    Install camshaft sprocket making sure it is correctly positioned. See VALVE TIMING . Reverse removal procedure to install remaining components.