61. Fuel Injection Pump Clean and Inspect

Fuel Injection Pump Cleaning and Inspection

Notice: The fuel injection pump is an electronically controlled device. Handle carefully in order to prevent damage to internal and external components.

1. When handling fuel system components, follow these guidelines
^ Keep all of the openings on the fuel injection pump capped at all times.
^ Do nor allow cleaning solvents to enter the fuel injection pinup during cleaning.
^ Keep the fuel injection nozzle openings capped at all times.
2. Clean the fuel injection pump and components with clean solvent.
3. Clean the exterior of the fuel injection nozzles only in clean solvent. Do not use a wire brush.
4. Clean the fuel injection lines in clean solvent.
5. Using compressed air dry the fuel injection nozzles. Wear protective safety glasses.
6. Using compressed air, dry the inside of the fuel injection lines. Wear protective safety glasses.
7. Inspect the fuel injection pump for the following:
^ Damage to the body.
^ Damage to the mounting flange.
^ Damage to the injection line fittings.
^ Damage to the electrical connectors.
^ Evidences of fuel leakage.
8. Inspect the fuel infection lines for the following:
^ Cracking, kinks, or wear marks from rubbing.
^ Damage to the injection line fittings.
^ Damage to the moderating brackets, retaining clips, and insulators.
9. Inspect the fuel injection nozzle injection line fittings for damage.

Important: Replace the glow plug if the matching fuel injection nozzle fails testing, even if the glow plug checks out as being good.

10. Test the fuel injection nozzles for proper operation.
11. Inspect the glow plugs for damage, stripped threads, and fins that are cracked, bulged, or broken.
12. Test the glow plugs for proper operation.