Fuel Pump (Jerk-Type / Common Rail)
criticalParent: Fuel Injection System
Components for this Group (3)
L48/60CR Common Rail HP Pump
MAN Energy Solutions L48/60CR
· Supplier: MAN Energy Solutions / L'Orange
Common Failures:
- • HP pump plunger/barrel wear
- • Fuel leakage at HP connections
- • Drive coupling fatigue failure
- • Suction valve malfunction
Service: Common rail pressure up to 1800 bar. HP pump overhaul at 16,000 hrs. Monitor pump delivery pressure.
Weight: 280.0 kg
W31 Common Rail Injection Unit
Wartsila Wartsila 31
· Supplier: Wartsila / L'Orange
Common Failures:
- • Rail pressure regulator drift
- • Injector nozzle erosion from high injection pressure
- • HP pump plunger wear
- • Fuel leakage at rail connections
Service: Common rail pressure up to 2200 bar. Rail and injector overhaul at 12,000 hrs. Monitor rail pressure stability.
Weight: 120.0 kg
M43C Fuel Injection Pump (Jerk-Type)
Caterpillar/MaK MaK M43C
· Supplier: Caterpillar/MaK / Bosch
Common Failures:
- • Plunger/barrel wear causing reduced injection pressure
- • Delivery valve leakage
- • Spring fatigue
- • Timing drive gear wear
Service: Mechanical jerk-type pump per cylinder. Overhaul at 8,000-12,000 hrs. Check plunger clearance with micrometer.
Weight: 85.0 kg