Mercruiser Bravo 3 Manual
I wanted to post a service manual for Bravo 3 drives as I was looking for torque specs on prop nuts in the RBO Archives. Mercruiser Bravo Sterndrive Service and Maintenance All of the boats I have owned since 2003 have had Mercruiser Bravo III. Manual covers all Bravo. With a good mechanical knowledge, and we also recommend the use of an engine manual. Mercruiser Bravo 1, 2 & 3 Sterndrive Service Guide.
Boatinfo requires FlashPlayer 9 or newer to display this document! Notice To Users Of This Manual Throughout this publication, Dangers, Warnings and Cautions (accompanied by the International HAZARD Symbol! ) are used to alert the mechanic to special instructions concerning a particular service or operation that may be hazardous if performed incorrectly or carelessly. OBSERVE THEM CAREFULLY! These safety alerts alone cannot eliminate the hazards that they signal.
Strict compliance to these special instructions when performing the service, plus common sense operation, are major accident prevention measures.! DANGER DANGER—indicates an imminently hazardous situation that, if not avoided, will result in death or serious injury.! WARNING WARNING—indicates a potentially hazardous situation that, if not avoided, could result in death or serious injury.! CAUTION CAUTION—indicates a potentially hazardous situation that, if not avoided, may result in minor or moderate injury or property damage.
It may also be used to alert against unsafe practices. This manual has been written and published by the Service Department of Mercury MerCruiser to aid our dealers’ mechanics and company service personnel when servicing the products described herein. We reserve the right to make changes to this manual without prior notification. © 2006, Mercury Marine Mercury, Mercury Marine, MerCruiser, Mercury MerCruiser, Mercury Racing, Mercury Precision Parts, Mercury Propellers, Mariner, Quicksilver, #1 On The Water, Alpha, Bravo, Pro Max, OptiMax, Sport-Jet, K-Planes, MerCathode, RideGuide, SmartCraft, Zero Effort, M with Waves logo, Mercury with Waves logo, and SmartCraft logo are all registered trademarks of Brunswick Corporation. Mercury Product Protection logo is a registered service mark of Brunswick Corporation. This manual assumes that personnel are familiar with marine product installation and are familiar with, if not trained in, the recommended installation procedures of Mercury MerCruiser products.
We cannot anticipate all conceivable installations and their possible hazards or results. Therefore, the personnel are responsible for any installation that does not fulfill the requirements of this manual. All information, illustrations and specifications contained in this manual are based on the latest product information available at the time of publication. As required, revisions to this manual will be sent to all dealers contracted by us to sell or service these products. Refer to dealer service bulletins, operation maintenance and warranty manuals and installation manuals for other pertinent information concerning the products described in this manual. Page L Work Precautions The electrical systems described are capable of violent and damaging short circuits or severe electrical shocks.
When performing any work where electrical terminals could possibly be grounded or touched by the mechanic, the battery cables should be disconnected at the battery. Any time the intake or exhaust openings are exposed during service they should be covered to protect against accidental entrance of foreign material which could enter the cylinders and cause extensive internal damage when the engine is started. Any time the sterndrive internal components are exposed during service they should be covered to protect against accidental entrance of foreign material which could enter the sterndrive and cause damage. Please note that during any maintenance procedure, replacement fasteners must have the same measurements and strength as those removed. Numbers on the heads of the metric bolts and on the surfaces of metric nuts indicate their strength. American bolts use radial lines for this purpose, while most American nuts do not have strength markings. Mismatched or incorrect fasteners can result in damage, malfunction, or personal injury.
Therefore, when removing fasteners, save them for reuse in the same locations whenever possible. When fasteners are not satisfactory for reuse, ensure that the replacement matches the original. Personnel should not work on or under an engine or sterndrive that is suspended. Engines or sterndrives should be attached to work stands or lowered to the ground as soon as possible.
Replacement Parts Use of parts other than the recommended service replacement parts will void the warranty on those parts that are damaged as a result.! WARNING Electrical, ignition, and fuel system components on Mercury MerCruiser engines and sterndrives are designed and manufactured to comply with U.S. Coast Guard rules and regulations to minimize risks of fire or explosion. The use of replacement electrical, ignition, or fuel system components that do not comply with these rules and regulations could result in a fire or explosion hazard and should be avoided.
When servicing the electrical, ignition, and fuel systems, it is extremely important that all components be properly installed and tightened. Otherwise, any opening in the electrical or ignition system would permit sparks to ignite fuel vapors from leaks in the fuel system, if they existed. Cleanliness And Care Of Product A Mercury MerCruiser power product is a combination of many machined, honed, polished and lapped surfaces with tolerances that are measured in thousandths of a mm/in. When servicing any component, care and cleanliness are important. Throughout this manual, it should be understood that proper cleaning and protection of machined surfaces and friction areas is a part of the repair procedure. Cleanliness is considered standard shop practice.
Whenever components are removed for service, they should be retained in order. At the time of installation, they should be installed in the same locations and with the same mating surfaces as when removed.
• SERVICE MANUAL NUMBER 25 MAINTENANCE IMPORTANT INFORMATION Section 1B - Maintenance Table of Contents Tools.1B-2 Closed Cooling System. Mechanical Design Ugural Solution Manual here. • MAINTENANCE SERVICE MANUAL NUMBER 25 Tools Description Part Number Timing Light 91-99379 Quicksilver Scan Tool 91-823686A2 Lubricants / Sealants / Adhesives Description Part Number Quicksilver Liquid Neoprene 92-25711--3 Quicksilver 2-4-C Marine Lubricant With Teflon 92-825407A3 Loctite Pipe Sealant With Teflon Obtain Locally Quicksilver U-Joint and Gimbal Bearing Grease 92-828052A2. • In consideration of these factors, Mercury MerCruiser has adjusted some maintenance intervals and corresponding tasks to be performed. In some cases, this may allow for more individual tasks to be performed in a single visit to the serving dealer, rather than multiple visits. • MAINTENANCE SERVICE MANUAL NUMBER 25 Gas Sterndrive(Continued) Scheduled Maintenance * Every Every Every Every Every Annu- hours hours ally hours or or 3 or 3 years years Annually years years Touch-up paint power package and spray with corrosion guard.
Change crankcase oil and filter. Change drive unit oil and retorque connection of gimbal ring to steering shaft. • Timing must be set using a special procedure as outlined in the appropriate section of this manual. Timing can- not be properly set using the conventional method. A special procedure must be followed to adjust idle rpm. Consult your Authorized Mercury MerCruiser Dealer before attempting this procedure.