FNM Marine Engine Maintenance Schedule

 

 

FNM Marine Engine Maintenance Schedule 30HPE, our trained technicians at Santa Barbara Marine Diesel Mechanic, servicing, Oxnard, Channel Islands Marina, Ventura Harbor & Santa Barbara Harbor. Your boats preventive maintenance periods apply to average conditions of operation. Check the periods given by the manufacturer of the boat in which the engine is installed.

It is good preventive maintenance to check your engine room for leakage and loose fasteners at each service. These maintenance periods apply only to engines that are operated with fuel and lubricating oil which conform to the specifications given in this handbook. Use the procedures in this section to maintain your engine in accordance with the preventive maintenance schedule.

 

FNM Marine Engine Maintenance Schedule:

Daily:

• Check the amount of coolant in the header tank.
• Check the engine for leakage of oil and coolant.
• Check the sea water strainer.
• Drain water from the fuel pre-filter.
• Check the amount of lubricating oil in the sump.
• Check the lubricating oil pressure at the gauge.
• Check the amount of lubricating oil in the reverse gearbox.

 

250 service hours or yearly:

•  Check the amount of coolant in the header tank.
• Check the engine for leakage of oil and coolant.
• Check the seawater strainer.
• Drain water from the fuel pre-filter.
• Check the amount of lubricating oil in the sump.
• Check the lubricating oil pressure at the gauge.
• Check the amount of lubricating oil in the reverse gearbox.
• Check the tension and the condition of the drive belt.
• Renew the lubricating oil in the reverse gearbox.

 

500 service hours or yearly:

• Check the amount of coolant in the header tank.
• Check the engine for leakage of oil and coolant.
• Check the seawater strainer.
• Drain water from the fuel pre-filter.
• Check the amount of lubricating oil in the sump.
• Check the lubricating oil pressure at the gauge.
• Check the amount of lubricating oil in the reverse gearbox.
• Check the tension and the condition of the drive belt.
• Renew the lubricating oil in the reverse gearbox.
• Check the specific gravity of the coolant.
• Check the impeller of the seawater pump.
• Clean the sediment chamber and the strainer of the fuel lift pump.
• Renew the element of the fuel filter.
• Renew the engine lubricating oil.
• Renew the canister of the lubricating oil filter.
• Renew the element of the air filter.
• Check all hoses and connections.
• Check the audible warning system which protects the engine.
• Check the engine mounts.

 

1000 service hours:

• Check the amount of coolant in the header tank.
• Check the engine for leakage of oil and coolant.
• Check the seawater strainer.
• Drain water from the fuel pre-filter.
• Check the amount of lubricating oil in the sump.
• Check the lubricating oil pressure at the gauge.
• Check the amount of lubricating oil in the reverse gearbox.
• Check the tension and the condition of the drive belt.
• Renew the lubricating oil in the reverse gearbox.
• Check the specific gravity of the coolant.
• Check the impeller of the seawater pump.
• Clean the sediment chamber and the strainer of the fuel lift pump.
• Renew the element of the fuel filter.
• Renew the engine lubricating oil.
• Renew the canister of the lubricating oil filter.
• Renew the element of the air filter.
• Check all hoses and connections.
• Check the audible warning system which protects the engine.
• Check the engine mounts.
• Check the valve tip clearances of the engine and adjust if necessary.
• Inspect the electrical system for signs of damage.
• FNM Marine Engine Maintenance Schedule

 

NOTE: These are FNM Marine periodic maintenance recommendations strait out of the service manual. here at Santa Barbara Marine Diesel Mechanic, we can customize your diesel engines periodic maintenance to fit your needs.

 

Marine Diesel Engine Maintenance

Regular Oil Changes

Oil in a diesel works hard—much harder than in a gas engine—because the engine works at a high temperature and under extreme pressure. Diesel oil also contains traces of sulfur, especially in countries other than the U.S., which gets transformed into destructive sulfuric acid inside your engine.

Also, many boats, especially small cruising sailboats, operate their engines infrequently and for short periods of time, when pulling into or out of their slip.

They may also run the engine for long time periods at low RPM, for charging battery banks or freezing the refrigerator’s holding plate. Both of these practices are rough on your engine. The engine doesn’t warm up to operating temperature, causing moisture to condense inside, creating sulfuric acid and also a buildup of carbon.

If this carbon remains inside your engine, the lubricating ability of the oil is substantially reduced. Plus, this buildup of soot coats valves and valve stems, which reduces the compression of your engine.

All the experts agree that you should avoid running the engine for short durations and/or at low loads. If you do a lot of this type of motoring, you’re going to need more frequent oil changes with top-quality oil and good filters. these are all good practices for marine diesel engine maintenance.