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Injection Pump: Installation

  1. Install NEW injection pump gasket. Align locating pin on injection pump hub with slot in injection pump driven gear. At the same time, align injection pump timing marks. Ensure cylinder No. 1 is set at TDC.
  2. Install injection pump onto front cover. Ensure alignment marks made during removal are aligned. Tighten injection pump mounting nuts. Install pump onto drive gear and tighten bolts to specification. See TORQUE SPECIFICATIONS . To complete installation, reverse removal procedure. Check injection pump timing. See appropriate ON-VEHICLE ADJUSTMENTS.
Fig 1: Identifying Diesel Injection Pump Components (6.5L)
G94H65596Courtesy of GENERAL MOTORS CORP.
Fig 2: Removing Fuel Injection Pump (6.6L)
G00058508Courtesy of GENERAL MOTORS CORP.
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