Westerbeke 6.5 MCG 60HZ Operator's Manual page 23

MAINTENANCE SCHEDULE
NOTE:
Use the engine hourmeter to log your engine hours or record your engine hours running time.
SCHEDULED MAINTENANCE
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EVERY 250 OPERATING HOURS OR YEARLY
*Exhaust Elbow/Exhaust System
*Fuel Filler and O·Rings
*Inlet Fuel Filler
*Generator
*Hoses
Vibration Isolators/Engine Mounts
*Heat Exchanger
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EVERY 500 OPERATING HOURS OR YEARLY
*Raw Water Pump
*Exhaust System Catalyst
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EVERY 500 OPERATING HOURS OR EVERY TWO YEARS
*Ignition System
*Coolant System
*Valve Clearances
*Starter Motor
EXPLANATION OF SCHEDULED MAINTENANCE
Check the structual integrity of the water injected exhaust elbow casting. Check the integrity
of the exhaust system attached to the elbow. All hose connections should be secure. No
chafing. No exhaust leaks. Hoses and muffler are in good serviceable condition.
NOTE: An exhaust leak will cause exposure to carbon monoxide!
Remove and replace fuel filter and all sealing 0-rings.
Remove and replace inlet fuel filter.
Check that AC connections are clean and secure. Ensure wires have no chafing.
See GENERATOR INFORMATION.
Engine hoses should be firm and tight. Replace if hoses become spongy, brittle or
delaminated. Check and tighten all hose clamps as needed.
Check vibration isolators, brackets and mounting hardware. Replace as needed.
Open heat exchanger end cap(s) and clean out debris.
Replace gasket and 0-rings if needed.
Remove the pump cover and inspect the pump assembly for wear, especially cam and wear
plates. Replace the impeller and gasket. Lubricate the impeller when re-assembling.
Inspect for proper operation. Replace at 2000 operating hours.
Inspect for deterioration. Test resistance.
Drain, flush and re-fill the cooling system with appropriate antifreeze mix. Replace the
thermostat and coolant pressure cap.
Adjust valves. (Incorrect valve clearance will result in poor engine performance.)
Check solenoid and motor for corrosion. Remove and lubricate. Clean and lubricate the starter
motor pinion drive
EVERY 1000 OPERATING HOURS OR OR EVERY FIVE YEARS
*Engine Timing Belt
*Heat Exchanger
*Diverter Valve
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EVERY 2000 OPERATING HOURS
*Oxygen Sensor
*Catalyst
Remove and replace the timing belt. NOTE: Failure to replace the timing belt at the
recommended interval could result in timing belt failure resulting in major damage
to the engine.
Remove the heat exchanger for professional cleaning and pressure testing.
Remove and replace.
Remove and replace exhaust oxygen sensor.
Remove and replace exhaust catalyst.
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WARNING:
Never attempt to perform any service while the engine is running. Wear the proper safety equipment
such as goggles and gloves, and use the correct tools for each job. When servicing/replacing DC components, turn off
the DC circuit breaker on the control panel.
*WESTERBEKE recommends this service be performed by a knowledgeable mechanic.
The 6.5/5.0 MCG Service Manual (#055743) is available as
a pdf download at www.westerbeke.com. This Service
Manual can also be purchased in hard copy from your
Westerbeke Dealer.