Engine Does Not Reach Maximum Rpm Under Load - Vetus D-LINE VD4.120 Operation Manual

9 Troubleshooting

5 Engine does not reach maximum rpm under load

Possible fault
Fuel pre filter clogged.
Fuel filter clogged with water
and/or contamination.
Clogged injectors
Faulty injector/injection pump.
Leaking fuel supply line or fuel
injection line.
Air in fuel system.
Wrong fuel quality or contami-
nated fuel.
Incorrect injection timing.
Oil level too high.
Lubricating oil incorrect SAE
spec or quality for ambient
temperature.
Insufficient intake air.
Leak in inlet manifold.
Intercooler dirty.
Exhaust restricted.
Incorrect valve clearance.
Transmission defect.
Turbocharger damaged.
100
Remedy
Clean/replace.
Check or replace.
Check, replace if required.
Check, replace if required.
Check / replace.
Check and bleed.
Check fuel. Drain and flush fuel
tank. Replace with new fuel.
Check / adjust.
Lower level.
Replace.
Check.
Check / replace.
Check/clean.
Check / clean.
Adjust.
Check
Replace
5 Engine does not reach maximum rpm under load
Possible fault
Engine overloaded.
Boat load inadequate.
Hull/propeller dirty.
Fault finding table
Remedy
Check size of propeller. Clean the
propeller.
-
Clean