Scheduled Maintenance That Should Be Done By Dealer - Mercury MerCruiser MCM 454 Mag MPI Service Manual

MAINTENANCE

Scheduled Maintenance That Should Be Done by Dealer

NON-HORIZON MODELS
NOTE: Only perform maintenance which applies to your particular power package.
Seawater Pickup Pump - Disassemble
And Inspect
Crankcase Oil and Filter - Change
Ignition System - Clean And Inspect
Condition
Flame Arrestor and Crankcase Ventilation
Hose - Clean and Inspect.
Positive Crankcase Ventilation (PCV)
Valve (If Equipped) - Change
Sterndrive Unit Oil - Change
Gimbal Ring Clamping Screws-
Retorque to 50-55 lb-ft (67-74 Nm).
Rear Engine Mounts - Check Torque To
38 lb-ft (52 Nm).
Gimbal Bearing - Lubricate
Cooling System - Clean And Inspect
Engine Alignment - Check
Engine Coupling Universal Joint Shaft
Splines - Lubricate
Steering System - Lubricate And Inspect
For Loose, Damage Or Missing Parts
Electrical System - Check For Loose Or
Damaged Wiring
Cooling System Hoses And Clamps -
Inspect For Damage And Deterioration.
Check Clamps For Tightness
Closed Cooling System Pressure Cap -
Clean, Inspect And Test
Continuity Circuit - Check Components
For Loose Connections, Broken Or
Frayed Wires
Shift Cable, Throttle Cable And Linkage -
Lubricate And Inspect For Loose,
Damaged Or Missing Parts
Engine Exhaust System - Inspect
Externally For Damage, Deterioration And
Restrictions. Check For Tightness
Ignition System - Check Timing And
Adjust As Needed
Index Index
Page 1B-4
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Task
SERVICE MANUAL NUMBER 23
Interval
Whenever Insufficient Seawater Flow Is
Suspected. (If Operating Temperature
Exceeds Normal Range.)
End Of First Boating Season and End Of First Boating Season and
Thereafter, Every 100 Hours Of Operation
Or Once Yearly, Whichever Occurs First
90-861326--1 MARCH 1999