Ford 9N - Removing the Transmission; Disassembling the Transmission; Removing Shifter Plate; Removing Main Shaft and Countershaft

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Contents3
Description and Specifications4
Description and Disassembly9
Data9
Left 3/4 Front View9
Accessory Removal10
Right 3/4 Front View of Engine10
Engine Disassembly11
Stripped Engine11
Removing Valve Guide Bushing Retainer12
Removing Valve Assembly13
Underside of Engine with Oil Pan Removed14
Removing Connecting Rod and Pistons14
Inspection and Repair15
Crankshaft and Flywheel15
Installing Crankshaft Gear16
Cylinder Block17
Crankshaft Assembly, Disassembled17
Flywheel and Clutch Pilot Bearing18
Oil Relief Valve, Disassembled19
Removing Cylinder Head19
Removing Cylinder Sleeve20
8N Sleeve Removal21
Installing Cylinder Sleeve22
Pistons and Connecting Rods23
Measuring Width of Valve Seat23
Connecting Rod and Piston Assembly23
Fitting Piston to Cylinder Bore24
Cylinder Bore and Piston Combinations24
Checking Ring Groove Width25
Checking Connecting Rod for Bend26
Checking Connecting Rod for Twist26
Measuring Connecting Rod Bearing for Wear27
Measuring Piston Ring End27
Camshaft and Valve Mechanism28
Installing Piston Ring on Piston28
Camshaft, Disassembled29
Valve Assembly, Disassembled29
Disassembling Valve Assembly30
Checking Valve Spring Tension31
Cylinder Head and Front Cover32
Oil Pump32
Checking Valve Guide Bushing for Wear32
Removing Oil Pump Drive Gear from Driven Gear and Body33
Oil Pump, Disassembled33
Water Pump34
Pressing Oil Pump Driven Gear Onto Oil Pump Drive Gear and Shaft34
Removing Water Pump Pulley35
Water Pump Disassembled35
Governor36
Pressing Bearing and Shaft from Pulley Hub36
Governor, Disassembled37
Governor Drive Shaft, Disassembled37
Driving Grooved Pin from Fork and Lever38
Removing Governor Drive Gear38
Removing Governor Bushing39
Installing Governor Bushing39
Oil Pan, Intake and Exhaust Manifolds40
Measuring Clearance between Washer and Fork Base40
"Go" and "No Go" Gauge Inserted Behind Governor Lever40
Correcting Insufficient Clearance on Governor Arm41
Correcting Excessive Clearance on Governor Arm41
Assembly of Engine42
Measuring Crankshaft42
Installing Clutch Disk and Pressure Plate43
Timing Marks44
Installing Valve Guide Bushing44
Push Rod on Heel of Cam45
Checking Clearance between Valve Stem45
Assembled Connecting Rod and Piston, Showing Oil Squirt Hole46
Installing Connecting Rod and Piston46
Measuring Clearance between Camshaft Gear and Cylinder Block47
Installation of Accessories48
Install Oil Pan48
Fits and Tolerances50
Definitions of Fits50
4-Cylinder Engine Carburetor54
Cleaning, Inspection and Repair55
Carburetor Disassembled55
Carburetor Body Disassembled56
Measuring Float Level57
Assembling Carburetor Body to Carburetor Throttle Body58
8N Fuel and Startng Problems60
Servicing the Starter64
Transmission Disassembly66
Transmission with Cover Removed67
Main Shaft Assembly, Disassembled68
Reverse Idler Gear Disassembled69
Power Take-Off Shift Assembly69
Transmission Cover, Disassembled70
Shift Rails and Shift Forks73
3 SPD Transmission75
Transmission Cross Section75
Transmission Assembly Parts76
Removing the Transmission77
Disassembling the Transmission77
Removing Shifter Plate77
Removing Main Shaft and Countershaft77
Reassembling Transmission78
Aligning Transmission Case78
Sherman Step-Up and Step-Down Combination Transmission83
Heavy Draft Work83
Better Traction - Greater Economy83
Mely Work83
Power Take-Off84
Power Take-Off Adapter84
Separating Power Take-Off Adapter Shaft Bearings85
Removing Power Take-Off Adapter85
Power Take-Off Adapter, Disassembled86
Checking Bearing Preload87
Belt Pulley Disassembly88
Belt Pulley Inspection and Repair89
Removing Bearing from Drive Gear90
Checking Driven and Drive Gear Torque90
Drive Pulley Assembly91
N Series Rear Axle and Brake Overhaul92
Rear Axle Disassembly94
Rear Axle Assembly94
Removing Hub from Axle95
Backing Plate and Hub95
Differential Assembly Disassembled96
Removing Drive Pinion Assembly97
Removing Drive Pinion Pilot Bearing98
Installing Drive Pinion Assembly99
Removing Differential99
Removing Drive Pinion Bearing Outer Race100
Drive Pinion Assembly, Disassembled102
Removing Axle Shaft102
Installing Axle Shaft Bearing104
Hydraulic Control Linkage105
Hydraulic System106
Hydraulic Unit106
Hydraulic Unit Assembly106
Install Constant Draft Control Linkage107
Hydraulic Cover and Lift Arms Disassembled108
Ram Cylinder, Disassembled108
Removing Valve Guide Seats109
Safety Valve109
Hydraulic Pump110
Valve Chamber, Disassembled111
Hydraulic System Adjustments112
Control Spring Adjustment112
Hydraulic Unit in Position for Adjustments113
Constant Draft Control and Piston Control Springs114
Quadrant Locking Mark114
Steering Gear116
Steering Gear Assembly118
Sector Shafts, Disassembled120
Removing or Installing Ball Retainer122
Filling Ball Return Guide122
Checking Steering Adjustment123
Timing Sector Shaft and Ball Nut124
Service Bulletins125
Installation Instructions for New Valve in the Ford Tractor Engine141
Ford Tractor 8N Engine Ring Overhaul144
Rod Alignment and Piston Pin Fits145
Piston Ring End Gap145
Measuring Piston Ring End Gap145
Fitting Main & Connecting Rod Bearings146
Instructions for Servicing Cast Iron Sleeves147
Correct Installation and Timing Procedure for the Angle Drive Distributor on the 8N Ford Tractor150
Installation Diagram for Installing 8N Generator on 2N and 9N Tractors154
Identification and Servicing of Carburetors on 8N Ford Tractors155

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