[Alan Wheeler]

I have chosen the following based on a mid size engine frame of 100-200Hp. Most of the following applies to all engine sizes, but certain hourly requirments may change depending on engine size. Mainly due to smaller engines having higher rev ranges, thus the hrs tend to be less for certain maintenance schedules. Please compensate to suit your engine size.

Please Note:
This is a guideline only. Your engine manufacturer may have a specified maintenance schedule that needs to be followed for purposes of Warrenty. Please ensure you follow your manufacturers requirements, which take priority over this list, or your warrenty may become void.

Daily
Check Coolant in Header tank
Check sump Oil level.
Check Gearbox oil level. Inspect oil for signs of water and burnt (overheated) smells.
Check oil pressures when engine is started.
Check water trap and ensure raw water is flowing at start up.
Check Fuel water trap if fitted.
Check Turbo boost pressure if fitted.

Every 100-150hrs or 6 months.
Drain and replace Engine Oil.
Renew oil filter.
Clean Air filter if fitted.
Check Drive belt tension
Check and clean water trap
Check for oil leaks around engine.
Grease Angle drive gear box connection of mechanical rev counter if fitted.

Every 200-400hrs or 12 months
Replace fuel filters
Inspect Fuel tank if possible for contamination.
Check hose clamps and hoses.
Change Gearbox oil
Replace Raw water pump impeller.
For turbo’d engines, Every 800hrs
Check turbocharger Compressor/Turbine blades.
Clean Turbo diffuser
Check oil drain pipe
Change engine Anodes if fitted.
Change Heat exchanger Anodes if fitted.

Every 2400 hrs
Have starter motor and alternator serviced.
Have Fuel Injectors serviced and calibrated. In some cases, Fuel injector Pump should also be considered for servicing.
Have Valve clearances checked and adjusted if required.
Check Idle speed and general performance of engine.