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Diesel Marine Propulsion Engines & Marine Generating Sets

General Aftercare

For Kubota Based Propulsion & Generating Set Engines, Beta Marine Recommend:

Engine Oil

Engine oil quality should have the minimum properties of the American Petroleum Institute “API” classification CF with multi-grade SAE ratings as listed in the following table.

NB: An acceptable alternative is a mineral based, semi-synthetic lubricating oil with a content mix no greater than 30% being synthetic based.
Do not mix two different types of oil or SAE rating.
Do not use lubricant additives and/or fully synthetic lubricating oil.

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Engine Coolant Antifreeze

Always use a Mono Ethylene Glycol Based Extended Life Anti-freeze mixed 30 < 50% with water.

NB: Do not exceed an Anti-freeze mix greater than 50%, as the engine cooling efficiency will be detrimentally affected.

For engine coolant capacity please refer to the relevant engine operator’s handbook. PDF`s can be found within the relevant engine page within this website or visit literature downloads…

Gearbox Lubricants

Depending on the gearbox brand/type they will either require Automatic Transmission Fluid or Gearbox Oil. For type, specification and capacity, please refer to the relevant gearbox operator’s handbook. PDF`s can be found within the relevant engine page within this website or visit literature downloads…

Maintenance Schedule

Daily or every
8hr running
After first
25hrs
After first
50hrs
Every 150hrs
with shallow
sump
Every Year
or 250hrs
if sooner
Every Year
or 750hrs
if sooner
Check engine oil level
Check gearbox oil level
Check engine coolant level
Check battery fluid
Check belt tension
and alternator bolts
Ensure raw water inlet
strainer is clear
Check stern gland lubrication
Drain off any water in fuel / water separator
Change gearbox oilSee separate gearbox manualSee separate gearbox manualSee separate gearbox manualSee separate gearbox manual
Check all external nuts, bolts and fastenings are tight. Check belt tension and alternator bolts. Check for leaks.
Change engine oil
Change oil filter
Lubricate keyswitch on control panel with “vaseline” or WD40
Check coolant “sacrificial” zinc anode and replace if necessary - sometimes frequently
Check general condition
Remove heat exchanger tube stack and replace rubber o-rings
Check sea water pump impeller and change if worn
Check air cleaner element and change if required
Change air cleaner element
Change diesel fuel filter
Change gearbox oil
Drain and replace engine coolant/anti-freeze*

*Check condition every year and change when neccessary.

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