Zosca – Jeanneay Sun odyssey 449 – Maintenance

We understand the importance of ensuring every voyage is safe and enjoyable. As every seasoned seaman knows, regular maintenance is crucial. Before each sail, we diligently check key components: inspecting the rigging and sails for wear, verifying the engine’s oil and coolant levels, examining the hull for any signs of damage, and ensuring all safety equipment is in optimal condition. This rigorous routine not only preserves the vessel’s performance but also guarantees a seamless and secure sailing experience for all aboard.

Here’s a quick checklist to jog your memory, but let’s be real—you’ve got this down pat!

Before every sail

Safety

  • Rigging and Sails: Inspect for any wear, tear, or loose fittings.
  • Hull: Look for any signs of damage or cracks.
  • Safety Equipment: Verify that life jackets, fire extinguishers, and flares are all present and in good condition.
  • Bilge Pump: Test to ensure it’s working properly.
  • Navigation Lights: Check that all lights are operational.
  • VHF Radio: Ensure it’s functioning and tuned to the correct channel (16).
  • Lines: Inspect for wear and make sure they’re ready for use.
  • Weather Forecast: Review the latest weather updates for a safe journey.

Engine

  • Visual: Inspect the engine exterior
  • Fuel: Confirm that the fuel tank has fuel for your trip with safety margins.
  • Oil: Check the oil level
  • Coolant: Check the coolant level
  • Seawater outlet: Check water coming out during engine operation to keep the engine cool

Procedures described on the Yanmar manual on page 114.

Periodic Yanmar 4JH57 Engine Maintenance

Periodic maintenance steps with relevant part numbers and reference to attached Yanmar 4JH57 manual page.

Every 250h / Annually

  • Replace fuel water separator pre-filter (121857-55710, p.126)
  • Replace fuel filter (129A00-55800, p.127)
  • Change the engine oil (p.118)
  • Replace engine oil filter (129150-35170, p.118)
  • Replace seawater pump impeller (129670-42610, p127)
  • Adjust the tension of the alternator belt (p.120)
  • Clean or replace the exhaust elbow
  • Change engine coolant (p.129)
  • Overall check on electric wiring and tightening of major nuts and bolts

You will need a Yanmar impeller puller (129671-92110, p.128)

Every 1000h / 4 Years

  • Clean and check seawater passages
  • Check diaphragm assembly (p.133)
  • Replace the alternator belt (129675-42280, p.119)
  • Check and adjust engine speed control cable (p.121)
  • Adjust intake/exhaust valve clearance (Consult Yanmar dealer)
  • Check the remote control cable operation (Consult Yanmar dealer)
  • Adjust the propeller shaft alignment (Consult Yanmar dealer)