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Yanmar Marine Engine Maintenance Schedule: Yanmar 8LV370 periodic maintenance is important for maximizing performance and extending the life of your Yanmar marine engine. At Santa Barbara Marine Diesel Mechanic, servicing, Ventura, Oxnard, Channel Islands Harbor & Santa Barbara Harbor. using trained Marine service technicians to perform, Periodic Maintenance for your Yanmar marine engine.
This section includes a Yanmar marine engine maintenance schedule: 50 hours, 250 hours, 500 hours, and 750 hours. for the purpose of this post, we will be using a Yanmar Marine Diesel Engine 8LV320. For reference purposes. note: most Yanmar Diesel Engines have the same periodic maintenance schedule.
YANMAR offers a range of all-inclusive Maintenance Kits for each engine range, saving you time and money. Our tailor-made kits include all of the necessary genuine YANMAR parts that you need for your regular scheduled maintenance intervals. Keep an extra onboard for easy access to common parts, so your engine won’t let you down.
Yanmar Marine Engine Maintenance Schedule:
Daily.
- Drain fuel /water Seperator (Racors)
- Cooling System Coolant Level – Check.
- Engine Air Cleaner Service Indicator – Check
- Engine Oil Level – Check.
- Marine Transmission Oil Level – Check.
250 hrs or yearly whichever comes first.
- Primary fuel filter element – Replace.
- Secondary fuel filter element – Replace.
- Engine Oil & Oil Filter – Change
- Seawater pump impeller – Replace.
- Seawater pump Seal – Check the state of wear of the seawater pump rotor. Replace if necessary.
- Descale/Flush Seawater System components. Check seawater/engine oil heat exchanger, seawater/engine coolant heat exchanger and intercooler heat exchanger (air-seawater). Clean if
necessary - Check zinc anode wear; replace (4) if necessary. In warm and very salty waters such as the Mediterranean, please check anodes every 6 months.
- Engine Coolant – Check.
- Check the condition of the air filter, Clean and replace if necessary.
- Turbo Charger – Inspect & Wash.
- Exhaust/Seawater Mixing Elbow – Inspect/Clean.
- Serpentine Belt – Inspect/Replace if necessary.
- Belt Tensioner – Inspect/Replace.
- Fuel Tank – Drain (Strip) water condensation from bottom of tank.
- Check the condition of the oil vapor recirculation filter; replace the filter if necessary.
- Fault memory reading via diagnostics tool
- Yanmar Marine Engine Maintenance Schedule.
500 Service Hours or yearly:
- Replace Seawater pump impeller.
- Inspect Seawater pump Seals.
- Replace Zinc Anodes
- Descale/Flush Seawater System components.
- Replace Engine Coolant.
- Clean Intake Silencer Element (Air Filter)
- Inspect & wash Turbo Charger.
- Replace Rubber Hoses as needed.
- Replace Exhaust/Seawater Mixing Elbow.
- Inspect wire connections.
- Drain (strip) bottom of fuel tank. Check for signs of condensation inside the fuel tank. Clean if necessary.
- oil vapor recirculation filter: replace.
- Check auxiliary belt (V belt) (alternator and engine cooling water pump).
- Replace fuel filter element.
- Change Engine Oil & Filter.
750hrs or 2 years whichever comes first.
- Replace fuel filter element.
- Change Engine Oil & Filter.
- Replace Seawater pump impeller.
- Replace Zinc Anodes.
- Replace Engine Coolant.
- Replace Intake Silencer Element (Air Filter)
- Inspect & wash Turbo Charger.
- Inspect/Replace Serpentine Belt.
- Replace Rubber Hoses.
- Replace Exhaust/Seawater Mixing Elbow.
- Inspect wire connections.
- Descale/Flush Seawater System components. Check seawater/engine oil heat exchanger, seawater/engine coolant. heat exchanger and intercooler heat exchanger (air-seawater). Clean if necessary.
- Adjust Propeller Shaft Alignment.
- Replace Lagging of Turbocharger.
- Drain (strip) water condensation from bottom of fuel tank.
SERVICE – How much maintenance is required for a YANMAR diesel marine engine and how often?
Periodic maintenance is important for maximizing performance and extending the life of your engine. Each engine Operation Manual, which can be downloaded from the online product pages, comes with a Periodic Maintenance section. This section includes a suggested maintenance interval schedule: 50 hours, 250 hours, 500 hours, and 750 hours.
NOTE: These are Yanmars periodic maintenance recommendations strait out of the service manual. Some of these seem extremely excessive to me such as replacing, Exhaust/Raw water Mixing Elbow. every 2 years. or replacing all the hoses every 2 years. here at Santa Barbara Marine Diesel Mechanic, we can customize your diesel engines periodic maintenance to fit your needs.
Yanmar Marine Engine Fuel System Up-grade – marine mechanic (sbmarinemechanic.com)
