Disassemble and inspect the seawater pump and replace worn components. A popping noise that will increase with engine rpm. If the problem persists, drain the fuel tank and refill. Check the spark plug wires. Remove the combustion deposits from the firing end of the spark plug with a plug cleaner. Inspect the fuel pressure regulator.
. Check the water inlets for debris or marine growth. Change the crankcase oil and filter. Some Standard Bravo Transom Assemblies could have been converted to High Performance Transom Assemblies by use of a High Performance Gimbal Ring Kit 822374A2. Worn piston rings, cylinder walls, valve guides or valve stem seals are causes of oil entering the combustion chamber. Replace the throttle body if necessary.
If a modification has been made since then, differences may exist between the content of these manuals and the actual inboard or stern drive. The difference between the two is what is under and behind the boat. Check the ignition coil operation. You can download Acrobat Reader free from. The chart below is a guide to crankcase oil selection. Such fouled plugs may be serviced clean, file and regap and reinstalled. File the electrode surfaces to restore clean, sharp edges.
You will never be dissapointed with the contents of this engine workshop manual. Determine the cause of the excess water. Inboards are steered by a rudder which is controlled by the steering wheel. Check out these how-to videos to learn more about this awesome technology. This manual has been written in a format that is designed to meet the needs of Mercury Marine technicians worldwide. Remove any oil deposits with solvent and dry plugs thoroughly.
Choose a sub category: Stern Drive Boat Motor Manual Service and repair your marine motor with a manual from Clymer or Seloc. Download Manuals mercruiser sterndrive mcm 165 power steering tube problems wiring diagram for trim 120 and 140 and engine workshop manual 1972 mercruiser sterndrive troubleshooting guide 1980 470 service manual 1983 mercuisre outdrive repair 1984 sea ray omc sterndrive repair manual 1987 mercruiser bravo sterndrive service and maintenance 1987 omc 3. Bravo Two, Bravo Two X, Bravo Two X Diesel, Bravo Three, Bravo Three X, Bravo Three X Diesel Serial Number 0M198373 and Above. Web site pages are designed for the factory certified technician, the boat mechanic or just boating enthusiasts performing their own repair work. Check the drive unit oil level, the trim pump oil level and the power steering pump fluid level. Each book contains hundreds of photos with instructions on exactly how to maintain your engine. Inspect the U-joints, the splines and the bellows.
Normal Condition Few deposits are present and probably will be light tan or gray in color. Hundreds of clear, close-up photos and illustrations in the Mercruiser repair manual help the reader thoroughly understand the job at hand. Online Assistance Email your questions and parts requests. This oil is a special blend of 25-weight and 40-weight oils for marine engines. Engine cranks over but will not start or starts hard 1. Operating in Saltwater Only: treat the engine surface with corrosion guard.
Using advanced technologies that exceed all expectations for reliability and performance, Mercury MerCruiser stationary engines have every chance in the future to maintain leadership in the field of propulsion systems for water equipment. Download Complete Service Repair Manual for 1974-1977 Mercury Mercruiser Stern Drive Units and Marine Engines. In either case, the individual performing repair work to the product should be familiar with basic knowledge of tools and mechanical theory. Get fast accurate answers to almost any Mercruiser related question. Therefore, it is very important that the boat owner and the servicing dealer discuss the current Maintenance Schedule and develop appropriate maintenance intervals to coincide with the individual operating habits, the environment and the maintenance requirements. Engines with multipoint fuel injection are equipped with SmartCraft measurement and control system, which provides control of engine operating conditions and onboard equipment of the vessel. Inspect the drive unit anodes and replace if 50 percent eroded.