OMC 400 & 800 Series Sterndrives 1978-1985
Gearcases, upper drive shaft housings, and complete outdrives for 78-85 OMC full-mechanical 400 and 800 series sterndrives. New and rebuilt drives are covered by a one-year limited warranty.
Prices include shipping in the continental US.
NEW 400/800 Full-Mechanical Lower Units Without Shift Cap & Cable
I own a boat with a 1976 OMC 165 Stern Drive and have a problem with the tilt mechanism. I have been doing most of the service work myself since I purchased the boat about one year ago. Presently the tilt mechanism has failed and I am attempting to correct this by myself as we do not have much expertise at my location with regard to these units. 1976 Omc Stern Drive Manual 1976 Omc Stern Drive Manual Yeah, reviewing a books 1976 omc stern drive manual could grow your near contacts listings. This is just one of the solutions for you to be successful. As understood, deed does not recommend that you have fabulous Page 1/24. 1986 - 1998 OMC Sterndrive Manual PDF Download June 11th, 2012, 07:42 AM I've uploaded the 1986 - 1998 OMC Sterndrive Manual PDF to my Google Drive and am providing a download link for the manual.
| HP | Cyl | Liters | Part Number | Price |
|---|---|---|---|---|
| 120 - 140 Large Gearcase | 4 | 2.5 - 3.0 | OM-FML-4-N | $1,895 |
| 170 - 260 | 6 - 8 | 3.8 - 5.7 | OM-FML-68-N | $1,895 |
Lower units do not come with a shift cap & cable assembly. When replacing a hydro-mechanical lower unit, you will need a new shift cap and cable, or you can replace the cable and modify your cap to work with the full-mechanical lower unit.
Hydro-Mechanical Shift Cap Modification
When upgrading from hydro-mechanical to full-mechanical, you will need to replace the shift cable and modify your old shift cap to work with it. There are two tabs extending down under the cap. In some cases, the forward tab (see image) needs to be cut flush with the bottom of the cap to avoid interference with the installation.
We no longer carry the shift cables, but you can usually find a new or used one here.
OMC 400/800 Upper Drive Assembly
| HP | Cyl | Liters | Description | Part Number |
|---|---|---|---|---|
| 120 - 140 | 4 | 2.5 - 3.0 | New | OM-FMU-4-N |
| 170 - 185 | 6 | 3.8 | New | OM-FMU-6-N |
| 185 - 230 | 8 | 5.0 | New | OM-FMU-81-N |
| 260 | 8 | 5.7 | New | OM-FMU-82-N |
New and remanufactured OMC 400/800 series uppers are currently unavailable, but you can use this link to search for a used one:
Complete OMC 400/800 Series Full-Mechanical Sterndrives
| HP | Cyl | Liters | Description | Part Number |
|---|---|---|---|---|
| 120 - 140 | 4 | 2.5 - 3.0 | New Upper/Rem Lower | OM-FMC-4-NR |
| 170 - 185 | 6 | 3.8 | New | OM-FMC-6-N |
| 185 - 260 | 8 | 5.0 - 5.7 | New | OM-FMC-8-N |
New and remanufactured OMC 400/800 series complete sterndrives are currently unavailable. You can order the new full-mechanical lower unit listed above and use these search links to find alternate sources for the other parts:
Important Info
Be sure to include your engine model number when ordering.
All units are shipped without oil. Be sure to use the proper oil and filling procedure that's recommended in your owner's manual.
New 4-cylinder lower units aren't available for small-gearcase models.
New units are assembled with all new parts that meet or exceed OEM specs and/or OEM parts, depending on availability.
Click here for more OMC sterndrive parts.
Place an Order
Description
This Clymer OMC 1964-1986 Stern Drive Repair Manual provides detailed service information, step-by-step repair instruction and maintenance specifications for 1964-1986 OMC Stern Drive Ford 90, Ford V8, GM 225, GM 2.5L, GM229, GM 3.0L, GM250, and GM V8 marine engines.
1964, 1965, 1966, 1967, 1968, 1969
1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979
1980, 1981, 1982, 1983, 1984, 1985, 1986
Includes general information about each model, tools and techniques, troubleshooting, lubrication, maintenance and tune-up, storage, cooling system service, inline engines, GM V6 and V8 engines, Ford V8 engines, cooling system, electrical system, stern drive removal, installation and upper gearcase overhaul, lower gearcase, intermediate housing and tilt mechanism, Selectrim system and complete wiring diagrams. Ellen muth pics. Features 456 illustrated pages.
Table of Contents
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, Ignition system, Engine performance, Engine overheating, Engine oil pressure indicator, Engine oil leaks, Engine noises, Fuel system, Cooling system
CHAPTER FOUR, LUBRICATION, MAINTENANCE AND TUNE-UP
Pre-operational checks, Starting check list, Post-operational checks, Cooling system flushing, Engine maintenance and lubrication, Stern drive lubrication, Engine tune-up, Valve adjustment, Compression test, Ignition system, Carburetor
CHAPTER FIVE, LAY-UP, COOLING SYSTEM SERVICE AND FITTING OUT
Lay-up, Cooling system draining, Cooling system refilling, Fitting out
CHAPTER SIX, INLINE ENGINES
Engine serial numbers, Special tools, Replacement parts, Engine removal, Engine installation, Disassembly checklist, Rocker arm cover, Intake and exhaust manifolds, Front cover and seal, Rocker arm assemblies, Camshaft, Oil pan, Oil pump, Cylinder head, Valves and valve seats, Piston/connecting rod assembly, Crankshaft, Flywheel, Cylinder block, Core plugs
CHAPTER SEVEN, GM V6 and V8 ENGINES
Engine serial number, Special tools, Replacement parts, Removal, Engine installation, Disassembly checklist, Rocker arm cover, Intake manifold, Exhaust manifolds, Crankshaft pulley and harmonic balancer, Front cover and seal, Timing chain and sprockets, Rocker arm assemblies, Camshaft, Oil pan, Oil pump, Cylinder head, Valves and valve seats, Piston/connecting rod assembly, Crankshaft, Rear main oil seal, Flywheel, Cylinder block, Core plugs
CHAPTER EIGHT, FORD V8 ENGINES
Engine serial number, Special tools, Replacement parts, Removal, Engine installation, Disassembly checklist, Rocker arm cover, Intake manifold, Exhaust manifold, Crankshaft pulley and vibration damper, Front cover and seal, Timing chain and sprockets, Rocker arm assemblies, Camshaft, Oil pan, Oil pump, Cylinder head, Valves and valve seats, Piston/connecting rod assembly, Crankshaft, Rear main bearing oil seal, Flywheel, Cylinder block, Core plugs
CHAPTER NINE, FUEL SYSTEM
Flame arrestor, Fuel quality, Carburetor fundamentals, Carburetors, Fuel pump and anti-siphon devices, Fuel lines
CHAPTER TEN, COOLING SYSTEM
Thermostat, Hose replacement, Engine circulating pump, Sea water pickup pump (Stern drive unit), Closed cooling system maintenance, Standard cooling system maintenance, Flushing adapters
CHAPTER ELEVEN, ELECTRICAL SYSTEMS
Battery, Charging system, Starting system, Ignition system, Ignition coil, Ignition resistor wire, Switches and connectors, Ignition switch, ESA module switches, Solenoids, Oil pressure sending unit, Water temperature sending unit, Fuses
CHAPTER TWELVE, STERN DRIVE REMOVAL, INSTALLATION AND UPPER GEARCASE OVERHAUL
Stern drive, Shift cable (1978-on) / Upper gearcase
CHAPTER THIRTEEN, LOWER GEARCASE (1964-1977)
Operation, Service precautions, Lower gearcase
CHAPTER FOURTEEN, LOWER GEARCASE (1978-ON)
Operation, Service precautions, Lower gearcase
1985 Omc Stern Drive Diagram
CHAPTER FIFTEEN, IMTERMEDIATE HOUSING AND TILT MECHANISM
Intermediate housing, Tilt mechanism
1976 Omc Sterndrive Manual
CHAPTER SIXTEEN, SELECTRIM SYSTEM
Operation, Mechanical system, Hydraulic system
INDEX
Omc Manuals Free
All units are shipped without oil. Be sure to use the proper oil and filling procedure that's recommended in your owner's manual.
New 4-cylinder lower units aren't available for small-gearcase models.
New units are assembled with all new parts that meet or exceed OEM specs and/or OEM parts, depending on availability.
Click here for more OMC sterndrive parts.
Place an Order
Description
This Clymer OMC 1964-1986 Stern Drive Repair Manual provides detailed service information, step-by-step repair instruction and maintenance specifications for 1964-1986 OMC Stern Drive Ford 90, Ford V8, GM 225, GM 2.5L, GM229, GM 3.0L, GM250, and GM V8 marine engines.
1964, 1965, 1966, 1967, 1968, 1969
1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979
1980, 1981, 1982, 1983, 1984, 1985, 1986
Includes general information about each model, tools and techniques, troubleshooting, lubrication, maintenance and tune-up, storage, cooling system service, inline engines, GM V6 and V8 engines, Ford V8 engines, cooling system, electrical system, stern drive removal, installation and upper gearcase overhaul, lower gearcase, intermediate housing and tilt mechanism, Selectrim system and complete wiring diagrams. Ellen muth pics. Features 456 illustrated pages.
Table of Contents
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, Ignition system, Engine performance, Engine overheating, Engine oil pressure indicator, Engine oil leaks, Engine noises, Fuel system, Cooling system
CHAPTER FOUR, LUBRICATION, MAINTENANCE AND TUNE-UP
Pre-operational checks, Starting check list, Post-operational checks, Cooling system flushing, Engine maintenance and lubrication, Stern drive lubrication, Engine tune-up, Valve adjustment, Compression test, Ignition system, Carburetor
CHAPTER FIVE, LAY-UP, COOLING SYSTEM SERVICE AND FITTING OUT
Lay-up, Cooling system draining, Cooling system refilling, Fitting out
CHAPTER SIX, INLINE ENGINES
Engine serial numbers, Special tools, Replacement parts, Engine removal, Engine installation, Disassembly checklist, Rocker arm cover, Intake and exhaust manifolds, Front cover and seal, Rocker arm assemblies, Camshaft, Oil pan, Oil pump, Cylinder head, Valves and valve seats, Piston/connecting rod assembly, Crankshaft, Flywheel, Cylinder block, Core plugs
CHAPTER SEVEN, GM V6 and V8 ENGINES
Engine serial number, Special tools, Replacement parts, Removal, Engine installation, Disassembly checklist, Rocker arm cover, Intake manifold, Exhaust manifolds, Crankshaft pulley and harmonic balancer, Front cover and seal, Timing chain and sprockets, Rocker arm assemblies, Camshaft, Oil pan, Oil pump, Cylinder head, Valves and valve seats, Piston/connecting rod assembly, Crankshaft, Rear main oil seal, Flywheel, Cylinder block, Core plugs
CHAPTER EIGHT, FORD V8 ENGINES
Engine serial number, Special tools, Replacement parts, Removal, Engine installation, Disassembly checklist, Rocker arm cover, Intake manifold, Exhaust manifold, Crankshaft pulley and vibration damper, Front cover and seal, Timing chain and sprockets, Rocker arm assemblies, Camshaft, Oil pan, Oil pump, Cylinder head, Valves and valve seats, Piston/connecting rod assembly, Crankshaft, Rear main bearing oil seal, Flywheel, Cylinder block, Core plugs
CHAPTER NINE, FUEL SYSTEM
Flame arrestor, Fuel quality, Carburetor fundamentals, Carburetors, Fuel pump and anti-siphon devices, Fuel lines
CHAPTER TEN, COOLING SYSTEM
Thermostat, Hose replacement, Engine circulating pump, Sea water pickup pump (Stern drive unit), Closed cooling system maintenance, Standard cooling system maintenance, Flushing adapters
CHAPTER ELEVEN, ELECTRICAL SYSTEMS
Battery, Charging system, Starting system, Ignition system, Ignition coil, Ignition resistor wire, Switches and connectors, Ignition switch, ESA module switches, Solenoids, Oil pressure sending unit, Water temperature sending unit, Fuses
CHAPTER TWELVE, STERN DRIVE REMOVAL, INSTALLATION AND UPPER GEARCASE OVERHAUL
Stern drive, Shift cable (1978-on) / Upper gearcase
CHAPTER THIRTEEN, LOWER GEARCASE (1964-1977)
Operation, Service precautions, Lower gearcase
CHAPTER FOURTEEN, LOWER GEARCASE (1978-ON)
Operation, Service precautions, Lower gearcase
1985 Omc Stern Drive Diagram
CHAPTER FIFTEEN, IMTERMEDIATE HOUSING AND TILT MECHANISM
Intermediate housing, Tilt mechanism
1976 Omc Sterndrive Manual
CHAPTER SIXTEEN, SELECTRIM SYSTEM
Operation, Mechanical system, Hydraulic system
INDEX
Omc Manuals Free
WIRING DIAGRAMS
