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Series 71 (Inline Except 2 Cylinder) Torque Specifications

Thread Size (in.)Class & ApplicationTorque Specifications
lb-ftN-m
1/4-20Standard Torque Specification7-99-12
Bolt-Injector Control Shaft Bracket10-1214-16
Bolt-Cam Follower Guide12-1616-22
1/4-28Standard Torque Specification96-120130-163
Screw-Inj. Rack Control Lever24-3633-49
5/16-18Standard Torque Specification156-204212-277
Bolt-Oil Pan (Cast) - Hard Gasket13-2118-28
Bolt-Oil Pan (Low Pan or In Aluminum F/W Hsg. & Front Cover)10-1214-16
5/16-24Standard Torque Specification15-1920-26
Nut-Lock-Push Rod15-1920-26
Bolt-Blower Drive Coupling Rotor Gear20-2527-34
Bolt-Blower Rotor Gear Hub25-3034-41
Nut-Lock Valve Bridge Adj. Screw20-2527-34
7/16-14Standard Torque Specification46-5062-68
Bolt-Tach. Drive30-3541-47
Bolt-Lifter Bracket55-6075-81
Bolt-Valve Bridge Guide (Nylon-Insert)46-5062-68
Bolt-Flywheel Housing Large Hole Cover30-3541-47
Bolt-Blower to Block55-6075-81
7/16-20Standard Torque Specification57-6177-83
Connector-Fuel (Steel Washer)40-4554-61
Nut-Exhaust Manifold30-3541-47
Nut-Connecting Rod60-7081-95
Connector- Fuel (Nylon Insert)30-3541-47
Nut-Connecting Rod60-7081-95
Bolt-Connecting Rod to Pin55-6075-81
3/8-16Standard Torque Specification30-3541-47
Bolt-Camshaft & Seal End Bearing35-4047-54
Bolt-Flywheel Hsg to Idler Gear & Dummy40-4554-61
Bolt-Air Box Cover10-1514-20
Bolt-Rocker Cover Hold-Down Special 12-Point15-2020-27
Bolt-Injector Clamp20-2527-34
Bolt-Oil Pan10-2014-27
3/8-24Standard Torque Specification35-3947-53
Bolt-Accessory Drive to Balance Gear (Steel Disc)45-5061-68
Bolt-Lower Front Cover25-3034-41
Nut-Water Manifold20-2527-34
Bolt-Balance Weight to Hub25-3034-41
Bolt-Balance Weight to Timing Gear25-3034-41
Bolt & Nut-Blower Drive Gear25-3034-41
Nut-Exhaust Outlet Manifold Flange20-2527-34
Nut-Fuel Jumper Line O Ring13-1718-23
Nut-Fuel Jumper Line Flared11-1315-18
Nut-Injector Clamp20-2527-34
1/2-13Standard Torque Specification71-7596-102
Bolt-Flywheel Housing90-100122-136
Bolt-Idler Gear Hub and Dummy Hub80-90108-122
Bolt-Tach. Drive Cover30-3541-47
Bolt-Engine Mtg Brkt to Frt Cover90-100122-136
Bolt-Front Cover (Crankshaft)80-90108-122
Bolt-Flywheel Housing Large Hole Cover30-3541-47
Bolt-Rocker Shaft Bracket to Cyl Head90-100122-136
1/2-20Standard Torque Specification83-93113-126
Bolt-Blower Rotor Gear Retainer55-6575-88
Nut-Oil Pump Drive Idler Gear Shaft60-7081-95
9/16-12Standard Torque Specification90-100122-136
9/16-18Standard Torque Specification107-117145-159
Nut-Crankshaft Bearing Cap140-150190-203
Bolt-Flywheel180-190244-258
Bolt-Flywheel (V-53)12-1616-22
Bolt-Cylinder Head140-150190-203
5/8-11Standard Torque Specification137-147186-199
Bolt-Starter to Aluminum Flywheel Housing95-105129-142
Bolt-Main Bearing (Boring)165-175224-237
Bolt-Main Bearing (Assembly)180-190244-258
Bolt-Cylinder Head190-200258-271
5/8-18Standard Torque Specification168-178228-241
Bolt-Lube Oil Filter Center50-6068-81
Nut-Alternator Pulley70-8095-108
Nut-Special Self Locking Nut (10SI Alternator)40-6054-81
Bolt-Main Bearing (Boring)140-155190-210
Bolt-Main Bearing (Assembly)155-185210-251
Nut-Cylinder Head190-200258-271
3/4-10Bolt-Crankshaft Main Bearing280-290380-393
3/4-16Standard Torque Specification290-300393-407
Nut-Accessory Drive Pulley120-140163-190
3/4-18Nut Standard, Dipstick Tube30-3541-47
3/4-24Bolt-Balance Weight Cover25-3034-41
7/8-14Standard Torque Specification475-485644-658
7/8-18Bolt-Oil Pump Relief Valve Cover25-3534-47
1-14Bolt Crankshaft End440-460597-624
1 1/8-18Nut-Cam and Balance Shaft300-325407-441
1 3/4-16Nut-Transfer Drive Gear (Marsden)375-400508-542

Series 71 (Inline Except 2 Cylinder) Pipe Plug

Plug Size in.CharacteristicTorque Specifications
lb-ftN-m
1/8-27Plug-Pipe (3/4 Taper)10-1214-16
1/4-18Plug-Pipe (3/4 Taper)14-1619-22
1/4-18Plug-Pipe (3/4 Taper)38-4252-57
1/4-18Plug-Pipe (7/8 Taper)14-1619-22
3/8-18Plug-Pipe (3/4 Taper)18-2224-30
3/8-18Plug-Pipe (7/8 Taper)18-2224-30
1/2-14Plug-Pipe (3/4 Taper)23-2731-37
1/2-14Plug-Pipe (7/8 Taper)23-2731-37
3/4-14Plug-Pipe (3/4 Taper)33-3745-50
3/4-14Plug-Pipe (7/8 Taper)33-3745-50
1-11 1/2Plug-Pipe (3/4 Taper)75-85102-115
1-11 1/2Plug-Pipe (7/8 Taper)75-85102-115
1 1/4-11 1/2Plug-Pipe (3/4 Taper)95-105129-142
1 1/4-11 1/2Plug-Pipe (7/8 Taper)95-105129-142
1 1/2-11 1/2Plug-Pipe (3/4 Taper)110-130149-176
1 1/2-11 1/2Plug-Pipe (7/8 Taper)110-130149-176
1/2-20Plug-Fuel Pump Relief Valve18-2224-30
1 1/4-16Plug-Oil Filter Bypass valve95-105129-142

Series 71 (Inline Except 2 Cylinder) Stud

Thread Size (in.)Class & ApplicationTorque Specifications
lb-ftN-m
7/16-20Stud Standard30-3541-47