Notice: The fuel injection pump is an electronically controlled
device. Handle carefully in order to prevent damage to internal and external
components.
- When handling fuel system components,
follow these guidelines:
| • | Keep all of the openings on the fuel injection pump capped at
all times. |
| • | Do not allow any cleaning solvents to enter the fuel injection
pump during cleaning. |
| • | Keep the fuel injection nozzle openings capped at all times. |
- Clean the fuel injection pump and components with clean solvent.
- Clean the exterior of the fuel injection nozzles only in clean
solvent. Do not use a wire brush.
- Clean the fuel injection lines in clean solvent.
- Using compressed air, dry the fuel injection nozzles. Wear protective
safety glasses.
- Using compressed air, dry the inside of the fuel injection lines.
Wear protective safety glasses.
- Inspect the fuel injection pump for the following:
| • | Damage to the mounting flange. |
| • | Damage to the injection line fittings. |
| • | Damage to the electrical connectors. |
| • | Evidence of fuel leakage. |
- Inspect the fuel injection lines for the following:
| • | Cracking, kinks, or wear marks from rubbing. |
| • | Damage to the injection line fittings. |
| • | Damage to the mounting brackets, retaining clips, and insulators. |
- 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.
- Test the fuel injection nozzles for proper operation. Refer to
Injection Nozzle(s) Diagnosis
in Engine Controls.
- Inspect the glow plugs for damage, stripped threads, and tips
that are cracked, bulged, or broken .
- Test the glow plugs for proper operation. Refer to
Glow Plug System Check
in Engine Controls.
