Nov 16, 2016

Engine Winterisation

Doug, gives us his 7 top tips for getting your diesel engine ready for winter!

While many of us will continue to use our boats throughout the winter and enjoy the quieter waters, fresher winds and clear mornings, many others will choose to lay their yacht up over the winter. While I don't claim that the following is exhaustive, here are a few things you can do to look after your diesel engine if you're laying the boat up for the winter.

  • 1. Drain the cooling system and fill it with with anti freeze, to ensure water does not freeze and cause damage. Having filled it, run the engine to ensure the anti freeze is pumped though out the system.
  • 2. Remove the impeller from the sea water pump so that it's vanes (blades) do not become brittle and bent over the winter.
  • 3. Press your fuel tank(s) up to full, this will help prevent condensation building up in your tank, which could in turn encourage fuel bug.
  • 4. Complete your annual oil change (and oil filter change) before leaving the boat. Leaving the old contaminated oil in the engine does it no good. Likewise change the gearbox oil.
  • 5. Remove your batteries, keep them somewhere warmer and trickle charge them every few weeks, do not allow them to decharge.
  • 6. Remove belts from the system, or at least relax them so they are not under tension.
  • 7. Ensure the engine compartment is well ventilated.

- Doug

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