S Cheduled M Aintenance By Q; T Echnician - Marine Power 4.3 VORTEC MPI Owner's Manual

10.
Engine Maintenance
Scheduled Maintenance By Qualified Technician
Service
Change Engine Oil and Filters
Change Filter on Fuel/Water Separator
Check Engine Mounts (Tightness)
Check Riser and Manifold Bolts for Tightness
Check for Loose, Damaged or Missing Engine Parts
Check Wire Harness Plugs for Corrosion and Connections
Inspect Distributor for Cracks or Deterioration
Check Condition of Spark Plugs (Replace if Necessary)
Inspect Hoses for Deterioration
Replace Impeller in Seawater Pump
Check Propeller and Shaft Alignment
Check and Adjust Ignition Timing (Carbureted Engine Only)
Check and Adjust Carburetor
Clean and Inspect Flame Arrestor and Crank Case Vent Hose
Clean and Inspect Carburetor Filter
Change Transmission Fluid
Change Coolant (If Equipped with Closed Cooling)
Clean Sea Water Section of Heat Exchanger
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Engine After Every 50
Startup 10 Hours of Hours of
Each Day Operation Operation Operation
3 3
3
3 3
3 3 3
3
3
3
3
3
3
3
3
Every 100
Hours of
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
25