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Home >> GMC >> 1986 >> Forward Control 7.4 W, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Fuel Injection System - 6.2L Diesel >> Removal & Installation >> Injection Pump >> Installation
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Injection Pump: Installation

    NOTE: Cylinder No. 1 must be set at TDC.
  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. See Fig 1.
  2. Attach injection pump to front cover. Alignment marks made during removal must be aligned. Tighten nuts. Attach pump to drive gear and tighten bolts. Reverse removal procedure to complete installation. Check injection pump timing.
Fig 1: Injection Pump Timing Mark Locations
G9784


    NOTE: Cylinder No. 1 must be set at TDC.
  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. See Figure.
  2. Attach injection pump to front cover. Alignment marks made during removal must be aligned. Tighten nuts. Attach pump to drive gear and tighten bolts. Reverse removal procedure to complete installation. Check injection pump timing.
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