Seasonal Maintenance Checklist for Your Yanmar 8LV-350

Date September 30, 2024
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Seasonal Maintenance Checklist for Your Yanmar 8LV-350

Seasonal Maintenance Checklist for Your Yanmar 8LV-350 Marine Engine

Priding yourself with a robust and reliable marine engine like the Yanmar 8LV-350 is a satisfying ownership experience—like with any performance car, but—it calls for a periodic pat on the back. As a boomer of various seasons like myself, possessing a seasonal maintenance checklist particularly crafted for your Yanmar 8LV-350 can ensure optimal longevity, efficiency, and security.

In this in-depth guide, we’ll walk you through seasonal tips and tricks for maintenance, familiarize you with the most important features and facts behind the Yanmar 8LV-350, and show you why it’s the best of the best among boaters who expect nothing but unparalleled performance. And if you’re looking to purchase this engine, you’ll learn everything you need to make a well-informed decision.

🔍 Learn about the Yanmar 8LV-350: A Brief Overview

Now that we have the basics out of the way, let’s examine what sets Yanmar 8LV-350 apart as the marine diesel engine of preference today.

✅ Yanmar 8LV-350 Specifications:

  • Engine Type: V8 90° 4-stroke direct injection
  • Displacement: 4.46 liters
  • Maximum Power Output: 350 mhp (metric horsepower) at 3800 rpm
  • Maximum Torque: 700 Nm at 2000 rpm
  • Fuel Type: Diesel
  • Aspiration: Twin turbocharged and intercooled
  • Cooling System: Water-cooled with heat exchanger
  • Weight: Approx. 450 kg (dry)
  • Emission Compliance: EPA Tier 3, EU RCD 2
  • Controls: Electronic (VC20 system compatibility)
  • Optional Drives: ZT370 sterndrive or conventional shaft

This engine offers auto-smoothness, amazing low-RPM torque, and great fuel economy—perfect for performance cruising, commercial use, and all applications in between.

And, yes—yes indeed—we actually do sell the Yanmar 8LV-350 and can help you decide on the right configuration for your boat.

🍂 Fall Maintenance Checklist

Fall is the time to condition your engine for cold weather use or winter storage. Take sure care to pay close attention to the following:

1. Clean and Inspect Engine Compartment

  • Inspect for salt or water intrusion.
  • Clean bilge areas for corrosion prevention.
  • Clean engine with damp cloth and corrosion inhibitor.

2. Fuel System

  • Fuel tank fill to seal against condensation.
  • Add a marine-grade fuel stabilizer to the fuel tank.
  • Replace fuel filters and fill as necessary.

3. Oil and Filter Change

  • Drain engine oil and refill with Yanmar-recommended oil.
  • Install new oil filter.
  • Pre-warm engine prior to oil change for easy drainage.

4. Cooling System Maintenance

  • Check coolant level and for leakage.
  • Check antifreeze protection level with refractometer.
  • Flush raw water side with fresh water.

5. Battery Maintenance

  • Clean terminals and apply dielectric grease.
  • Check voltage and charge if needed.
  • Remove and store in cool, dry place if not utilized.

6. Winterizing Option

If you’ll be keeping the boat in storage, do full winterization:

  • Fog engine if necessary.
  • Drain raw water system.
  • Shut seacocks and seal for leaks.

❄️ Winter Care Checklist (Off-Season Maintenance)

Although not used, your Yanmar 8LV-350 still requires some maintenance.

1. Storage Environment

  • Store boat covered and well ventilated.
  • Employ a dehumidifier or moisture absorbers.

2. Check Monthly

  • Inspect for rodent infestation.
  • Check battery voltage if plugged in.
  • Inspect engine for leaks or corrosion signs.

3. Service Scheduling

  • Book your spring commissioning service in advance.
  • Replace any components or filters early to avoid supply chain disruptions.

🌸 Spring Commissioning Checklist

It’s go time in the spring. Get your Yanmar 8LV-350 ready for another season on the water.

1. Visual Inspection

  • Check belts, hoses, and wiring.
  • Check fluid levels on all.
  • Reconnect the battery.

2. Fuel System

  • Replace fuel filters.
  • Prime fuel system and check for leaks.
  • Start engine and verify fuel pressure.

3. Cooling System

  • Check raw water impeller.
  • Flush system again and check proper coolant mix.
  • Inspect seawater strainer and clean same.

4. Exhaust and Air Systems

  • Inspect turbochargers and intercooler.
  • Verify exhaust leaks.
  • Inspect intake paths for debris.

5. Test Run

  • Operate engine and let it heat to running temp.
  • Verify oil pressure, coolant temperature, and RPM.
  • Verify no error codes on VC20 display.

☀️ Summer In-Use Checklist

Overtime for your engine when in season. Mid-season service keeps you running smoothly.

1. Weekly Quick Checks

  • Check oil and coolant levels.
  • Inspect belts and hoses.
  • Inspect for fluid under engine.

2. Monthly Maintenance

  • Clean seawater strainer.
  • Inspect fuel filter.
  • Clean engine and treat with corrosion inhibitor.

3. Diagnostic Scans

  • Run VC20 diagnostics every month.
  • Scan for fault codes or stored warnings.

4. Performance Watch

  • Check propeller if RPMs or top speed are off.
  • Inspection for smoke or unusual noises—take corrective action.

🔧 Reasons Why Routine Maintenance is Important to the Yanmar 8LV-350

Even though the Yanmar 8LV-350 can withstand demanding sea duty, periodic maintenance protects your investment and optimizes performance.

Benefits of Regular Maintenance:

✔️ Longer Engine Life
✔️ Better Fuel Efficiency
✔️ Fewer Breakdowns
✔️ Greater Peace of Mind on Extended Cruises
✔️ Better Resale Value

Also, a well-maintained Yanmar 8LV-350 will run quieter, smoother, and with greater confidence in rough marine conditions.

🧰 Yanmar 8LV-350 Care Tips by Our Experts (Seasonal Maintenance Checklist for Your Yanmar 8LV-350)

Some expert advice from licensed Yanmar dealers:

  • 🔩 Use only OEM Yanmar filters and parts.
  • 🛢️ Use Yanmar-recommended marine diesel use engine oil.
  • 🔧 Replace impellers and belts yearly, even when they look fine.
  • 🌊 Never disregard small drips or corrosion pressure—address them promptly before damage occurs.
  • 📘 Maintain a logbook of all service and maintenance.

🚤 Want to Buy the Yanmar 8LV-350? Here’s Why You Should

If you’re not one of the lucky owners of the Yanmar 8LV-350, here’s why this engine is a class-top performer:

🌊 Performance and Versatility

The 8LV-350 provides high torque at low RPM and is equally suited to high-speed cruises and leisurely cruises. Its slenderness and compactness make it simple to fit on a range of boats from luxury yachts to rigid inflatables.

🧠 Smart Technology

With electronic controls and integration of VC20, you have smart monitoring and simple control of engine parameters. What’s the benefit? Fewer surprises, enhanced diagnostics, and improved performance.

🌱 Environmental Compliance

The 8LV-350 is EPA Tier 3 and EU RCD 2 certified, so it’s a smart, environmentally conscious choice for today’s boaters.

⚙️ Drive Flexibility

Opt for the shaft drive or the ZT370 sterndrive for unmatched propulsion and maneuverability—very handy when docking in a tight spot or towing.

🛒 Buy the Yanmar 8LV-350 from Us

We are not mere information sellers—we are certified dealers of the Yanmar 8LV-350 and can assist with:

✅ Selecting the proper configuration
✅ Get installation guidance
✅ Buy genuine parts and accessories
✅ Have access to certified service technicians

Call us today for a quote, lead time, and financing!

📋 Printable Maintenance Schedule (Bonus!)

Need to have this at your fingertips?

Print our FREE Yanmar 8LV-350 Seasonal Maintenance Checklist (PDF)

👨‍🔧 Expert Guidance

Issues with:

  • Installation?
  • Availability of parts?
  • Prices?
  • Trade-ins?

Our marine engine specialists are here to guide you in choosing the ideal engine for your vessel.

🧭 Closing Thoughts

Yanmar 8LV-350 is an upscale marine engine that rewards its owner with returns if well maintained. With this comprehensive seasonal maintenance guide, you’re more poised to protect your investment and have worry-free boating.

Whether you’re gearing up for summer, off-season winterizing, or planning your next upgrade, remember: we don’t talk about the Yanmar 8LV-350—we sell it.

🚀 Ready to upgrade your engine to the next level?
✅ Get a quote for the Yanmar 8LV-350 today
📞 Or speak with a marine engine expert today.

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