Maintenance Log - Mercury MerCruiser Horizon 8.2 ECT Manual

Section 5 - Maintenance
Task Interval
Every 100 hours or
annually
(whichever occurs first)
Every 300 hours or 3
years
(whichever occurs first)
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 50
• Touch up the paint on the power package.
• Change the engine oil and filter.
• Change the transmission fluid (Transmission Models).
• 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.
• Replace the water‑separating fuel filter element.
• Clean the flame arrestor and the crankcase ventilation hoses.
• Recommended Maintenance and replacement of the (PVC) valve.
• Inspect the condition and the tension of the belts.
• On models with closed cooling, check the coolant level and antifreeze concentration for
adequate freeze protection. Correct if necessary. Refer to the Specifications section.
• 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.
• On models with closed cooling, clean the seawater section of the closed cooling system.
• Clean, inspect, and test the pressure cap of the closed cooling system.
• 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 vent valve and duckbill valve on each exhaust elbow (port and starboard).
• On models with closed cooling, replace the coolant/anitifreeze. Replace every two years if not
using extended‑life coolant/antifreeze.
Maintenance to Be Performed
Engine Hours
90-8M0061999 MAY 2012
eng