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Detroit Diesel V71 Series Torque Specifications |
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|
Thread Size (in.)
|
Description
|
Torque Specifications | |
| lb-ft | N-m | ||
| 1 1/8-18 | Nut-Cam and Balance Shaft | 300-325 | 407-441 |
| 1/4-18 | NPTF Dipstick Adaptor used with Airbox Drain Banjo | 38-42 | 52-57 |
|
1/4-20
|
Standard Torque Specification | 7-9 | 9-12 |
| Bolt-Injector Control Shaft Bracket | 10-17 | 14-23 | |
| Bolt-Cam Follower Guide | 12-16 | 16-22 | |
|
1/4-28
|
Standard Torque Specification | 8-10 | 11-14 |
| Screw Inj. Rack Control Lever | 2-3 | 3-4 | |
|
5/16-18
|
Standard Torque Specification | 13-17 | 18-23 |
| Bolt Blower Drive Assembly Thrust Collar | 16-2 | 22-28 | |
| Bolt-Hand Hole Cover (Air Box) | 13-21 | 18-28 | |
| Bolt-Oil Pan (Cast) – Hard Gasket | 13-21 | 18-28 | |
| Bolt-Oil Pan (Low Pan or in Aluminum F/W Hsg. and Front Cover) | 10-12 | 14-16 | |
|
5/16-24
|
Standard Torque Specification | 15-19 | 20-26 |
| Nut-Lock Push Rod | 15-19 | 20-26 | |
| Bolt-Blower Drive Plat to Gear | 25-30 | 34-41 | |
| Bolt-Blower Drive Coupling Rotor Gear | 20-25 | 27-34 | |
| Nut-Lock Valve Bridge Adj. Screw | 20-25 | 27-34 | |
|
3/8-16
|
Standard Torque Specification | 30-35 | 41-47 |
| Bolt-Camshaft & Seal End Bearing | 35-40 | 47-54 | |
| Bolt-Air Inlet Housing to Blower | 16-21 | 22-28 | |
| Bolt-Trunnion to Block | 40-45 | 54-61 | |
| Bolt-Rocker Cover Hold-Down Special 12-Point | 15-20 | 20-27 | |
| Bolt-side Angle Blower Mounting | 30-35 | 41-47 | |
| Bolt-Injector Clamp | 20-25 | 27-34 | |
| Bolt-Oil Pan | 10-20 | 14-27 | |
|
3/8-24
|
Standard Torque Specification | 35-39 | 47-53 |
| Bolt-Flywheel Housing Small Hole Cover | 30-35 | 41-47 | |
| Bolt-Accessory Drive to Balance Gear (Steel Disc) | 45-50 | 61-68 | |
| Bolt-Blower Drive Sprocket to Blower Rotor Gear | 45-50 | 61-68 | |
| Screw-Lock-Cam Inter Bearing | 15-20 | 20-27 | |
| Bolt-Lower Front Cover | 25-30 | 34-41 | |
| Nut-Water Manifold | 20-25 | 27-34 | |
| Bolt-Blower Drive Assembly Flex Plate to Hub | 40-45 | 54-61 | |
| Bolt & Nuts-Blower Drive Assembly Attaching Nuts and Bolts | 25-30 | 34-41 | |
| Nut-Flywheel Housing Small Hole Stud | 20-25 | 27-34 | |
| Nut-Exhaust Outlet Manifold Flange (Brass) | 20-25 | 27-34 | |
| Nut-Plug Blower Drive Assembly and Flywheel Housing Plug Nuts | 25-30 | 34-41 | |
| Nut-Flange Mounted Alternator Adaptor | 15-20 | 20-27 | |
| Nut-Fuel Jumper Line- O Ring | 13-17 | 18-23 | |
| Nut-Fuel Jumper Line – Flared | 11-13 | 15-18 | |
| Nut-Injector Clamp | 20-25 | 27-34 | |
|
7/16-14
|
Standard Torque Specification | 46-50 | 62-68 |
| Bolt-Tach. Drive Cover | 30-35 | 41-47 | |
| Bolt-Crankshaft Outboard Main Bearing | 70-75 | 95-102 | |
| Bolt-Flywheel Housing Large Hole Cover | 30-35 | 41-47 | |
| Bolt-Blower End Plate | 40-45 | 54-61 | |
|
7/16-20
|
Standard Torque Specification | 57-61 | 77-83 |
| Connector-Fuel (Steel Washer) | 40-45 | 54-61 | |
| Nut-Exhaust Manifold | 30-35 | 41-47 | |
| Nut-Connecting Rod | 60-70 | 81-95 | |
| Nut-Water Pump Impeller | 45-50 | 61-68 | |
| Aluminum Flywheel Housing & Front Cover | 10-20 | 14-27 | |
| Nut-Connecting Rod | 60-70 | 81-95 | |
| Bolt-Connecting Rod to Pin | 55-60 | 75-81 | |
|
1/2-13
|
Standard Torque Specification | 71-75 | 96-102 |
| Bolt-Flywheel Housing | 90-100 | 122-136 | |
| Bolt-Idler Gear Hub and Dummy Hub | 80-90 | 108-122 | |
| Bolt-Tach. Drive Cover | 35-35 | 47-47 | |
| Bolt-Idler Gear Hub and Dummy Hub (Military 8-V71 T) | 105-115 | 142-156 | |
| Bolt-Flywheel Housing Large Hole Cover | 30-35 | 41-47 | |
| Bolt-Trunnion TOI Block | 105-115 | 142-156 | |
| Bolt-Rocker Shaft Bracket to Cyl Head | 90-100 | 122-136 | |
|
1/2-20
|
Standard Torque Specification | 83-93 | 113-126 |
| Bolt-Blower Rotor Gear Retainer | 100-110 | 136-149 | |
| Bolt-Fuel Pump Drive | 55-65 | 75-88 | |
| 9/16-12 | Standard Torque Specification | 90-100 | 122-136 |
|
9/16-18
|
Standard Torque Specification | 107-117 | 145-159 |
| Bolt-Cam Gear R.B. (300M) Crankshaft | 180-190 | 244-258 | |
| Bolt-Flywheel | 180-190 | 244-258 | |
|
5/8-11
|
Standard Torque Specification | 137-147 | 186-199 |
| Bolt-Starter to Aluminum Flywheel Housing | 95-105 | 129-142 | |
| Bolt-Main Bearing (Boring) | 165-175 | 224-237 | |
| Bolt-Main Bearing (Assembly) | 180-190 | 244-258 | |
| Bolt-Cylinder Head | 190-200 | 258-271 | |
|
5/8-18
|
Standard Torque Specification | 168-178 | 228-241 |
| Bolt-Lube Oil Filter Center | 50-60 | 68-81 | |
| Bolt-Crankshaft Flange | 130-140 | 176-190 | |
| Nut-Alternator Pulley | 70-80 | 95-108 | |
| Nut-Special Self Locking, for 10SI Alternator | 40-60 | 54-81 | |
| Nut-Cylinder Head | 190-200 | 258-271 | |
|
3/4-16
|
Standard Torque Specification | 290-300 | 393-407 |
| Nut-Accessory Drive Pulley | 120-140 | 163-190 | |
| 3/4-18 | Nut-Standard, Dipstick Tube | 30-35 | 41-47 |
| 7/8-14 | Standard Torque Specification | 475-485 | 644-658 |
| 1-14 | Bolt Crankshaft End- 1 5/16 Hex Head | 290-310 | 393-420 |
| 1-1/2 | Bolt Crankshaft End | 440-460 | 597-624 |
| 1 7/16-16 | Nut-Blower Drive Gear Hub | 50-60 | 68-81 |
Detroit Diesel V71 Series Pipe Plug Torque Specifications |
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|
Plug Size (in.)
|
Description
|
Torque Specifications | |
| lb-ft | N-m | ||
| 1/8-27 | Plug-Pipe (3/4 Taper) | 10-12 | 14-16 |
| 1/4-18 | Plug-Pipe (3/4 Taper) | 14-16 | 19-22 |
| 1/4-18 | Plug-Pipe (7/8 Taper) | 14-16 | 19-22 |
| 3/8-18 | Plug-Pipe (3/4 Taper) | 18-22 | 24-30 |
| 3/8-18 | Plug-Pipe (7/8 Taper) | 18-22 | 24-30 |
| 1/2-14 | Plug-Pipe (3/4 Taper) | 23-27 | 31-37 |
| 1/2-14 | Plug-Pipe (7/8 Taper) | 23-27 | 31-37 |
| 3/4-14 | Plug-Pipe (3/4 Taper) | 33-37 | 45-50 |
| 3/4-14 | Plug-Pipe (7/8 Taper) | 33-37 | 45-50 |
| 1-11 1/2 | Plug-Pipe (3/4 Taper) | 75-85 | 102-115 |
| 1-11 1/2 | Plug-Pipe (7/8 Taper) | 75-85 | 102-115 |
| 1 1/4-11 1/2 | Plug-Pipe (3/4 Taper) | 95-105 | 129-142 |
| 1 1/2-11 1/2 | Plug-Pipe (3/4 Taper) | 110-130 | 149-176 |
| 1 1/2-11 1/2 | Plug-Pipe (7/8 Taper) | 110-130 | 149-176 |
| 1/2-20 | Plug-Fuel Pump Relief Valve | 18-22 | 24-30 |
| 1 1/4-16 | Plug-Oil Filter Bypass valve | 95-105 | 129-142 |
| 1 1/2-6 | Plug-Oil Filter Bypass valve | 110-130 | 149-176 |
Detroit Diesel V71 Series Stud Torque Specifications |
|||
|
Thread Size (in.)
|
Description
|
Torque Specifications | |
| lb-ft | N-m | ||
| 7/16-20 | Stud-Standard | 30-35 | 41-47 |
| 1/2-13 | Stud-Aluminum Flywheel Housing W/50DN Alternator | 20-25 | 27-34 |
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