Description
This USED Clymer Mercruiser Alpha One, Bravo One, Bravo Two, Bravo Three 1986-1994 Stern Drive Boat Engine Repair Manual provides detailed service information, step-by-step repair instruction and maintenance specifications for 1986-1994 MerCruiser Alpha One, Bravo One, Bravo Two, and Bravo Three stern drive boat engines. May also cover 1995-1996 models. Check with your dealer to be sure.
1986 1987 1988 1989
1990 1991 1992 1993 1994
Includes general information on each model, tools and techniques, troubleshooting, lubrication, maintenance and tune-up, storage, cooling system service, GM inline engines, GM V6 and V8 engines, fuel system, cooling system, electrical system, MerCruiser drive system, drive shaft housing, gearcase housing (lower unit), bell housing, Gimball bearing and ring, power trim and tilt systems, steering system, corrosion protection and complete wiring diagrams. Features 648 illustrated pages.
QUICK REFERENCE DATA
CHAPTER ONE / GENERAL INFORMATION
Manual organization / Notes, cautions and warnings / Torque specifications / Engine operation / Fasteners / Lubricants / Gasket sealant / Galvanic corrosion / Protection from galvanic corrosion / Propellers
CHAPTER TWO / TOOLS AND TECHNIQUES
Safety first / Basic hand tools / Test equipment / Service hints / Special tips / Mechanic’s techniques
CHAPTER THREE / TROUBLESHOOTING
Starting system / Charging system / Motorola charging system troubleshooting / Mando charging system troubleshooting / Direct drive alternator charging system / Rectifier test / Ignition system / Fuel system / Engine performance / Engine overheating / Engine oil pressure indicator / Engine oil leaks / Engine noises / Engine troubleshooting / Cooling system / Stern drive unit
CHAPTER FOUR / LUBRICATION, MAINTENANCE AND TUNE-UP
Preoperational checks / Starting checklist / Post-operational checks / Cooling system flushing / Engine maintenance and lubrication / Stern drive lubrication (Alpha One [except Generation II]) / Stern drive lubrication (Alpha One Generation II, Bravo One, Bravo Two and Bravo Three) / Fuel pump housing (Mark V engines) / General lubrication points / Engine tune-up
CHAPTER FIVE / LAY-UP, COOLING SYSTEM SERVICE AND FITTING OUT
Lay-up / Cooling system draining / Cooling system refilling / Cooling system conversion / Fitting out
CHAPTER SIX / GM INLINE ENGINES
Engine serial number and code / Special tools / Gasket sealant / Replacement parts / Engine removal / Engine installation / Disassembly checklists / Valve cover / Intake/exhaust manifolds / Rocker arm assemblies / Crankshaft pulley and torsional damper / Timing gear cover and seal / Camshaft / Oil pan / Oil pump / Cylinder head / Valves and valve seats / Valve lifters / Piston/connecting rod assembly / Rear main oil seal / Crankshaft / Flywheel / Cylinder block / Core plug replacement
CHAPTER SEVEN / MERCRUISER INLINE ENGINES
Engine serial number and code / Special tools / Gasket sealant / Replacement parts / Engine removal / Engine installation / Disassembly checklists / Valve cover / Intake manifold / Rocker arm assemblies / Alternator rotor/stator / Front cover, seals and circulating pump / Timing chain and sprockets / Camshaft / Oil pan / Oil pump / Cylinder head / Valves and valve seats / Valve lifters / Piston/connecting rod assembly / Crankshaft / Flywheel housing, coupler and flywheel / Cylinder block / Core plug replacement
CHAPTER EIGHT / GM V6 AND V8 ENGINES
Engine serial number and code / Special tools / Gasket sealant / Replacement parts / Engine removal / Engine installation / Disassembly checklists / Valve covers / Intake manifold / Exhaust manifold / Rocker arms / Valve lash adjustment (except Mark V big blocks and Generation II V6 engines) / Crankshaft pulley and torsional damper / Crankcase front cover and oil seal / Timing chain and sprockets / Balance shaft (V6 serial No. OF000001-on) / Camshaft / Oil pan / Oil pump / Cylinder head / Valves and valve seats / Valve lifters / Piston/connecting rod assembly / Rear main oil seal / Crankshaft / Flywheel / Cylinder block / Core plug replacement
CHAPTER NINE / FUEL DELIVERY SYSTEM
Flame arrestor / Carburetor fundamentals / Carburetors / Fuel pump and anti-siphon devices / Fuel lines
CHAPTER TEN / COOLING SYSTEM
Thermostat / Hose replacement / Engine circulating pump / Stern drive water pump / Drive belt / Closed cooling system maintenance / Standard cooling system maintenance
CHAPTER ELEVEN / ELECTRICAL SYSTEMS
Battery / Charging system / Direct drive alternator charging system / Starting system / Ignition system / Breaker point distribution / Thunderbolt IV ignition / DDIS ignition / EST ignition / Ignition coil / Ignition resistor wire (breaker point ignition) / Switches and connectors / Solenoids / Oil pressure switch/sender unit / Water temperature sending unit / Electrical protection / Wiring harness with audio warning system
CHAPTER TWELVE / MERCRUISER DRIVE SYSTEM
Mercruiser Alpha One drive / Mercruiser Bravo One, Bravo Two and Bravo Three drive
CHAPTER THIRTEEN / DRIVE SHAFT HOUSING
Fastener removal / Service precautions / Alpha One and Alpha One Generation II drive / Bravo One, Bravo Two and Bravo Three drive
CHAPTER FOURTEEN / GEARCASE HOUSING (LOWER UNIT)
Fastener removal / Service precautions / Alpha One drive / Bravo One and Bravo Two drive / Bravo Three
CHAPTER FIFTEEN / BELL HOUSING, GIMBAL BEARING AND GIMBAL RING
Exhaust bellows/tube / Shift cable service / Gimbal bearing / Bell housing service / Water hose and water tube / Gimbal ring, swivel shaft and steering lever service / Gimbal housing service
CHAPTER SIXTEEN / POWER TRIM AND TILT SYSTEMS
Low-pressure pump system / Auto trim system / Trim cylinders
CHAPTER SEVENTEEN / STEERING SYSTEMS
Safety precautions / Mechanical steering system / Power steering system
CHAPTER EIGHTEEN / CORROSION PROTECTION SYSTEMS
Corrosion / Zinc anodes / Continuity devices / Galvanic isolator / Mercathode system / Corrosion protection test
INDEX
WIRING DIAGRAMS