CRITICAL: DO NOT START THE ENGINE

Do not start the engine. Salt water plus combustion heat accelerates corrosion and can seize internals.

VesselsFuel & Oil Problems
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Salt Water Ingestion

Salt water is far more aggressive than fresh. When it gets into a marine engine — through a failed riser, a back-flooding exhaust, or a swamp — it begins corroding cylinder walls, valves, and bearings almost immediately. The window to flush and preserve the engine is short. Keeping the engine off and getting a technician to it quickly is the difference between a flush and a rebuild.

Call Now: 0800 769 000

24/7 marine fuel recovery — nationwide

What to Look For

Raw water reached the cylinders, intake, or oil

A back-flooding or corroded exhaust riser

Engine was swamped or submerged in seawater

Rusty water on the dipstick or at the plugs

Common Causes

Riser / manifold failure

The classic marine petrol failure — raw water siphons back into the cylinders.

Exhaust back-flooding

A low transom or slow cranking lets exhaust water reverse into the engine.

What to Do — and What Not to Do

Do

  • Keep the engine off
  • Note the water source — salt vs fresh
  • Call 0800 769 000 immediately

Don't

  • Start, crank, or run the engine
  • Attempt to burn off contaminated fuel by running it
  • Top up the oil or fuel before the system is assessed
  • Motor the vessel back to the ramp under its own power
  • Pump contaminated fuel overboard — it is an environmental offence

How Recovery Works

1.Call 0800 769 000 — do not start or run the engine
2.We confirm the vessel name, location (marina and berth), and what happened
3.A certified marine technician is dispatched to the vessel
4.Contamination assessed and the affected fuel or oil system isolated
5.Contaminated fuel or oil drained and captured for compliant disposal
6.Fuel or oil system flushed and filters replaced
7.System refilled to manufacturer specification and the engine checked
8.Insurance report generated on request

Related Guides

Need Help Now?

Available 24/7. Don't start the engine — call us first.

0800 769 000