Mercruiser service manual pdf

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Mercruiser GM V8 454 cid 7. Mercury Mercruiser 496 Mag HO 8. Models Covered Mercruiser service manual pdf This Manual :MODEL SERIAL NUMBER MCM 3.

0L OC856451 And Above, MCM 3. Serial Numbers 0B424941 to 0B774251 MCM 3. Serial Numbers 0B436391 to 0B775248 MCM 3. Service Repair Manual Application: GM 181 cid 4-Cylinder MCM 3. 0L Alpha OL01004 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006 with Model Serial Number OL010042 and Above.

1998-2006 Mercury Mercruiser Manual 305 CID 5. 7L MCM 350 MAGNUM SRX 5. 7L MCM 454 MAGNUM SRX 7. 260 With Serial Numbers 4891650 To 6216686 . MCM 120-260 Stern Drive Units Ratio 1. 2L MPI Gasoline Multiport Injection Engine. 0L MPI Alpha and Bravo, 350 MAG MPI Alpha and Bravo, 350 MAG MPI Alpha and Bravo Horizon, MX 6.

Alpha One SS Serieal Number 0A471375 and Above. This manual only covers Engine Repair and does not cover stern drive unit repair or transom assembly. Later Models are rated at 130HP and have 9. These manuals contains an introductory description on and procedures for the inspection, service and overhaul of its main components. General knowledge information is not included. Please read the GENERAL INFORMATION section to familiarize yourself with basic information concerning the inboard engine or stern drive.

Read and refer to the other sections in this manual for information regarding proper inspection and service procedures. These manuals have been prepared using the latest information available at the time of publication. If a modification has been made since then, differences may exist between the content of these manuals and the actual inboard or stern drive. Illustrations in these manuals are used to show the basic principles of operation and work procedures. These manuals are intended for use by technicians who already possess the basic knowledge and skills to service inboard or stern drive motors and components.

Persons without such knowledge and skills should attempt with caution to service any component or engine by relying on this manual only. Never attempt to perform any work with out the assistance of a service manual. Apprentice mechanics or do-it-yourself mechanics that don’t have the proper tools and equipment may or may not be able to properly perform the services described in this manual. Improper repair may result in injury to the mechanic and may render the engine unsafe for the boat operator and passengers. NOTE: Only perform maintenance which applies to your particular power package.

Maintenance intervals and the corresponding tasks to be performed, as shown in this current schedule or as found in a previously printed schedule, are generally based on an average boating application and environment. However, individual operating habits and personal maintenance preferences can have an impact on the suggested intervals. If operating in salt, brackish or polluted waters, flush the cooling system after each use. Check the drive unit oil level, the trim pump oil level and the power steering pump fluid level.

Check the water inlets for debris or marine growth. Check the seawater strainer and clean. Inspect the drive unit anodes and replace if 50 percent eroded. Operating in Saltwater Only: treat the engine surface with corrosion guard. Check the battery connections and the fluid level. Ensure that the gauges and the wiring connections are secure. Touch-up paint the power package and spray with corrosion guard.

Change the crankcase oil and filter. Change the drive unit oil and retorque the connection of the gimbal ring to the steering shaft. Check the steering system and the remote control for loose, missing or damaged parts. Lubricate the cables and the linkages.

Inspect the U-joints, the splines and the bellows. Lubricate the gimbal bearing and the engine coupler. Check the continuity circuit for loose or damaged connections. Check the spark plugs, the wires and the distributor cap. Clean the flame arrestor and the crankcase ventilation hoses. Check the electrical system for loose, damaged or corroded fasteners.

Inspect the condition and the tension of the belts. Check the cooling system and exhaust system hose clamps for tightness. Inspect both systems for damage or leaks. Disassemble and inspect the seawater pump and replace worn components.