LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> GMC >> 1987 >> Forward Control 5.7 K, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Fuel Injection System - TBI >> Overhaul >> Reassembly (Model 220) >> Fuel Injector
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Fuel Injector

  1. Using a slight twisting motion, install fuel injector filter on nozzle end of injector until seated against base. Ensure that large end of filter faces injector. Filter should cover raised rib at base of injector.
  2. Lubricate "O" rings with automatic transmission fluid. Push small "O" ring on nozzle end of injector until seated against injector fuel filter. Install back-up washer in top recess of fuel meter body cavity.
  3. Install large "O" ring directly above back-up washer. Press "O" ring into cavity until it is flush with top of fuel meter body casting surface.
    NOTE: "O" rings and back-up washer must be installed before fuel injector. Otherwise injector fuel leaks may occur.
  4. Align raised lug on injector base with notch in fuel meter body cavity. Push down on injector until it is fully seated. Injector is correctly installed when electrical connections are parallel to throttle shaft.
scientia non olet · About LEMON Manuals