64759 Mercruiser PLUG, DRAIN-CYLINDER BLOCK (1/4")

operation or any maintenance procedures are performed.The user is responsible for the performance of all maintenance which includes the following items: performing all adjustments , using proper lubricants, fluids, and filters and replacing old components with new components due to normal wear and aging .Failure to adhere to proper maintenance intervals and procedures may result in diminished performance of the product and/or accelerated wear of components.Before each consecutive interval is performed, all maintenance from the previous intervals must be performed.Use fuel consumption, service hours, or calendar time, WHICH EVER OCCURS FIRST, in order to determine the maintenance intervals. Products that operate in severe operating conditions may require more frequent maintenance. All of the following will affect the oil change interval: operating conditions , fuel type , oil type and size of the oil sump . Scheduled oil sampling analyzes used oil in order to determine if the oil change interval is suitable for your specific engine. In the absence of scheduled oil sampling, replace the engine oil and filters according to the following intervals:If the engine has a standard oil sump, change the oil after every 500 service hours.If the engine has a deep oil sump, change the oil after every 1000 service hours. Refer to this Operation and Maintenance Manual , "Engine Oil and Filter - Change" in order to determine the oil change interval that is suitable for your specific engine.To determine the maintenance intervals for the overhauls, refer to this Operation and Maintenance Manual , "Maintenance Recommendations" .When Required
Batteries - Replace
Centrifugal Oil Filter - Inspect
Engine Air Cleaner Element (Dual Element) - Clean/Replace
Engine Air Cleaner Element (Single Element) - Clean/Replace
Fuel System - Prime
Heat Exchanger - Inspect
Maintenance Recommendations
Zinc Rods - Inspect/Replace
Daily
Air Starting Motor Lubricator Oil Level - Check
Air Tank Moisture and Sediment - Drain
Battery Charger - Check
Cooling System Coolant Level - Check
Driven Equipment - Inspect/Replace/Lubricate
Engine Air Cleaner Service Indicator - Inspect
Engine Oil Filter Differential Pressure - Check
Engine Oil Level - Check
Fuel System Fuel Filter Differential Pressure - Check
Fuel System Primary Filter/Water Separator - Drain
Fuel Tank Water and Sediment - Drain
Instrument Panel - Inspect
Marine Transmission Oil Level - Check
Walk-Around Inspection
Every Week
Jacket Water Heater - Check
Every 50 Service Hours
Zinc Rods - Inspect/Replace
Initial 250 Service Hours
Engine Speed/Timing Sensor - Clean/Inspect
Engine Valve Lash - Adjust
Fuel Injector - Adjust
Speed Sensor - Clean/Inspect
Every 250 Service Hours
Belts - Inspect/Adjust/Replace
Cooling System Supplemental Coolant Additive (SCA) - Test/Add
Engine Oil Sample - Obtain
Engine Oil and Filter - Change
Hoses and Clamps - Inspect/Replace
Initial 500 Hours (for New Systems, Refilled Systems, and Converted Systems)
Cooling System Coolant Sample (Level 2) - Obtain
Every 500 Service Hours
Air Shutoff - Test
Cooling System Coolant Sample (Level 1) - Obtain
Engine Oil and Filter - Change
Every 1000 Service Hours
Engine - Clean
Engine Crankcase Breather - Clean
Engine Oil and Filter - Change
Engine Protective Devices - Check
Fuel System Primary Filter/Water Separator - Clean/Replace
Fuel System Secondary Filter - Replace
Every 2000 Service Hours
Air Starting Motor Lubricator Bowl - Clean
Crankshaft Vibration Damper - Inspect
Driven Equipment - Check