● Spark plugs.
● Water in fuel.
● Condition of battery and cables.
● Starter motor–for overheat damage.
● Call for assistance or see Volvo Penta authorized dealer.
Did Engine Refuse to Start after Being Run? Check:
● Ignition system primary circuit.
● Ignition coil(s) and/or ignition module.
● Flooded engine.
● Call for assistance or see Volvo Penta authorized dealer.
Engine Noises and Vibrations
Valves (Hydraulic Lifters) – Check:
● Oil quality (dirt or water in oil).
● Oil quantity.
● Oil type and weight.
● Call for assistance or see Volvo Penta authorized dealer.
Ignition System (Ping or Knock) – Check:
● Improper tuning (see dealer).
● Cap and rotor for corrosion (see
Workshop Manual
) .
● Proper octane fuel is used.
● Call for assistance or see Volvo Penta authorized dealer.
Cooling System – Check:
● Supply pump.
● Loose belts and/or pulleys.
● See
Cooling System
.
● Call for assistance or see Volvo Penta authorized dealer.
Mountings – Check:
● Loose, broken, or worn engine mounts.
● Loose lag screws holding mounts to stringer.
● Call for assistance or see Volvo Penta authorized dealer.
Alternator – Check:
● Loose pulley (see dealer).
● Noise from bearings (see dealer).
● Call for assistance or see Volvo Penta authorized dealer.
Drive – Check:
● Failed U–joints or gimbal bearing (see dealer).
● Damaged internal drive components (see dealer).
● Worn, bent, or broken propeller hub or blades (refer to
Propeller Replacement
).
● Call for assistance or see Volvo Penta authorized dealer.
Engine Runs Rough
If At Slow Speed – Check:
● Idle speed.
● Spark plugs.
● Fuel pump pressure.
● Water or contaminants in fuel.
● Manifold vacuum leak.
● Call for assistance or see Volvo Penta authorized dealer.
Troubleshooting
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47706149 09-2015 © AB VOLVO PENTA
Summary of Contents for V8-225
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