Table of Contents
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Section 5 - Maintenance
Task Interval
After the initial 20‑hour
break‑in period
Every 100 hours or
annually
(whichever occurs first)
Every 200 hours or 3
years
Every 300 hours or 3
years
Every 5 years
Maintenance Log
Record all maintenance performed on your power package here. Be sure to save all work orders and receipts.
Date
Maintenance Performed
Page 58
Change the engine oil and filter.
•
Touch up the paint on the power package.
•
Change the engine oil and filter.
•
Change the sterndrive gear lube.
•
If the condition of the spark plugs, spark plug wires, and the distributor cap and rotor was
satisfactory at the initial inspection (as listed in Every 300 hours or 3 years), inspect the
condition of these components. Replace as necessary.
•
Tighten the connection of the gimbal ring to the steering shaft to specifications.
•
Replace the water‑separating fuel filter element.
•
Check the steering system and the remote control for loose, missing, or damaged parts.
Lubricate the cables and the linkages.
•
Check the continuity circuit for loose or damaged connections. If the package is equipped with
a MerCathode, test the MerCathode unit output.
•
Clean the flame arrestor, IAC muffler (MPI engines), and the crankcase ventilation hoses.
Inspect the PCV valve, if equipped.
NOTE: On MerCruiser V6 models, the PCV valve is a non‑serviceable, internal component of the
valve cover assembly.
•
Inspect the condition and the tension of the belts.
•
Check the coolant level and antifreeze concentration for adequate freeze protection. Correct if
necessary. Refer to the Specifications section.
•
On driveshaft extension models, lubricate the driveshaft U‑joints and tailstock input and output
bearings.
•
Inspect the U‑joints, the splines, and the bellows. Check the clamps.
•
Check the engine alignment.
•
Lubricate the U‑joint splines and cross bearing, if equipped with grease fittings.
•
Lubricate the gimbal bearing and the engine coupler.
NOTE: Lubricate the engine coupler every 50 hours if operated at idle for prolonged periods of time.
•
Check the engine mounts for tightness and tighten to specifications if necessary.
•
Inspect the condition of the spark plugs, spark plug wires, and the distributor cap and rotor, if
equipped. Replace as necessary. If the condition of these components is satisfactory at
inspection, repeat inspection every 100 hours or once a year, whichever occurs first.
•
Check the electrical system for loose, damaged, or corroded fasteners.
•
Check the cooling system and the exhaust system hose clamps for tightness. Inspect both
systems for damage or leaks.
•
Disassemble and inspect the seawater pump and replace worn components.
•
Clean the seawater section of the closed‑cooling system. Clean, inspect, and test the pressure
cap.
•
Inspect the exhaust system components. If the package was equipped with water shutters
(flapper valves), verify that they are not missing or worn.
•
Replace the coolant/anitifreeze. Replace every two years if not using extended‑life coolant/
antifreeze.
Maintenance to Be Performed
Engine Hours
90-899883274 MARCH 2008
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Table of Contents
Troubleshooting
