Used manual with minor ware.

MerCruiser Alpha One, Bravo One, Bravo Two and Bravo Three Stern Drives 4 Cylinder, V6.& V8 Engines Part# B742

Clymer Marine Repair manuals are designed for DIY maintenance, troubleshooting, rebuild and repair. Included are step-by-step procedures combined with detailed photography and extensive use of exploded parts views, Clymer manuals are a great addition to your tool box and a great way to save money.

QUICK REFERENCE DATA

CHAPTER ONE / GENERAL INFORMATION
Manual organization / Notes, cautions and warnings / Torque specifications / Engine operation / Fasteners / Lubricants / Gasket sealant / Galvanic corrosion / Propellers / Specifications

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 / Mando charging system / Direct drive alternator charging / 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
Pre-operational check list / Starting check list / Post-operational checks / Cooling system flushing / Engine maintenance and lubrication / Engine oil and filter change / Power steering service / Fuel system service / Fuel filter service / Fuel selection / Flame arrestor / Battery / 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 / Compression check / Spark plug / Distributor cap, wires and rotor / Contact breaker point replacement / Breaker point gap adjustment / Ignition timing / Carburetor adjustment / Specifications

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
Removal installation / 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 /Specifications

CHAPTER SEVEN / MERCRUISER INLINE ENGINES
Removal installation / Valve cover / Intake manifold / Rocker arm assemblies / Alternator rotor/stator / Front cover, seals and circulating pump / Timing chain and sprockets / Camshaft / Oil pan pump / Cylinder head / Valves and valve seats / Valve lifters / Piston/connecting rod assembly / Crankshaft / Flywheel housing, coupler and flywheel / Cylinder block / Core plug /Specifications

CHAPTER EIGHT / GM V6 AND V8 ENGINES
Removal installation / Valve covers / Intake manifold / Exhaust manifold / Rocker arms / Valve lash 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 models serial No. OF000001-on / Camshaft / Oil pan pump / Cylinder head / Valves and seats / Valve lifters / Piston/connecting rod assembly / Rear main oil seal / Crankshaft / Flywheel / Cylinder block / Core plug /Specifications

CHAPTER NINE / FUEL DELIVERY SYSTEM
Flame arrestor / Carburetors / Fuel pump and anti-siphon devices /Specifications

CHAPTER TEN / COOLING SYSTEM
Thermostat / Engine circulating pump / Stern drive water pump / Drive belt / Cooling system maintenance /Specifications

CHAPTER ELEVEN / ELECTRICAL SYSTEMS
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) / Solenoids / Oil pressure switch sender unit / Water temperature sending unit / Electrical protection / Wiring harness with audio warning system /Specifications

CHAPTER TWELVE / MERCRUISER DRIVE SYSTEM
Mercruiser Alpha One drive / Mercruiser Bravo One, Bravo Two and Bravo Three drive /Specifications

CHAPTER THIRTEEN / DRIVE SHAFT HOUSING
Alpha One and Alpha One Generation II drive / Bravo One, Bravo Two and Bravo Three drive /Specifications

CHAPTER FOURTEEN / GEARCASE HOUSING (LOWER UNIT)
Alpha One drive / Bravo One and Bravo Two drive / Bravo Three /Specifications

CHAPTER FIFTEEN / BELL HOUSING, GIMBAL BEARING AND GIMBAL RING
Exhaust bellows tube / Shift cable / Gimbal bearing / Bell housing / Water hose and water tube / Gimbal ring, swivel shaft and steering lever service / Gimbal housing /Specifications

CHAPTER SIXTEEN / POWER TRIM AND TILT SYSTEMS
Low-pressure pump system / Auto trim system / Trim cylinders /Specifications

CHAPTER SEVENTEEN / STEERING SYSTEMS
Mechanical steering system / Power steering system /Specifications

CHAPTER EIGHTEEN / CORROSION PROTECTION SYSTEMS
Zinc anodes / Continuity devices / Galvanic isolator / Mercathode system / Corrosion protection test /Specifications

INDEX

WIRING DIAGRAMS

Models covered:
1986 1987 1988 1989 1990 1991 1992 1993 1994 MerCruiser Alpha One
1986 1987 1988 1989 1990 1991 1992 1993 1994 MerCruiser Bravo One
1986 1987 1988 1989 1990 1991 1992 1993 1994 MerCruiser Bravo Two
1986 1987 1988 1989 1990 1991 1992 1993 1994 MerCruiser Bravo Three

Clymer Manuals MerCruiser Alpha One Manual
Clymer Manuals MerCruiser Bravo One Manual
Clymer Manuals MerCruiser Bravo Two Manual
Clymer Manuals MerCruiser Bravo Three Manual
Clymer Manuals MerCruiser Alpha One Online Manual
Clymer Manuals MerCruiser Bravo One Online Manual
Clymer Manuals MerCruiser Bravo Two Online Manual
Clymer Manuals MerCruiser Bravo Three Online Manual

Stern Drive Units:
Alpha One (1986-1994)
Bravo One (1986-1994)
Bravo Two (1986-1994)
Bravo Three (1986-1994)

Engines:
GM inline 4-cylinders: 2.5 L (151 cid) and 3.0 L (181 cid)
MerCruiser inline 4-cylinder: 3.7 L (224 cid)
GM V6: 4.3 L (262 cid)
GM V8: 5.0 L (305 cid), 5.7 L (350 cid), 7.4 L (454 cid) and 8.2 L (502 cid)