GM Service Manual Online
For 1990-2009 cars only

Special Tools

J 43779 Locating Pin Installer

For equivalent regional tools, refer to Special Tools.


    Object Number: 1660845  Size: SH

    Note: Do not replace the oil pump locating pin or pins unless the pin or pins are damaged.

  1. Remove the locating pin (2) from the oil pump body (3).
  2. Caution: DO NOT mar the oil pump body surface when installing the locating pin(s). Tap gently on the locating pin installer tool. Heavy or continued hammering will damage the oil pump body surface.

  3. Using J 43779 installer  (1), install the locating pin (2) to the specified height.
  4. Specification
    The locating pin installed height measurement is 10.7-11.3 mm (0.42-0.44 in) above the oil pump body surface.