Volvo Penta V6 Series User Manual

Engine Noises and Vibrations
Valves (Hydraulic Lifters) – Check:
•
Oil pressure; check gauge for low pressure.
•
Oil quality; oil is old (overdue for change), debris or
water in oil.
•
Oil quantity; proper level on dipstick.
•
Oil type and weight.
Ping, Knock, or Detonation; Fuel and Ignition
System – Check:
•
Fuel quality; octane too low, ethanol percentage too
high, water in fuel, old fuel.
•
Ignition system secondary circuit; spark plug wires,
spark plugs.
Cooling System – Check:
•
Seawater pump, circulation pump.
•
Loose belts and/or pulleys.
Engine Mounts – Check:
•
Loose, broken, or worn engine mounts.
•
Loose lag screws or bolts holding mounts to
stringer.
Alternator – Check:
•
Loose pulley (see dealer).
•
Noise from bearings (see dealer).
•
Noise from belt tensioner or pulleys.
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.
Troubleshooting
47712779 09-2020 © AB VOLVO PENTA 63

Volvo Penta V6 Series Specifications

General

Brand	Volvo Penta
Model	V6 Series
Category	Engine
Language	English