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Detroit Diesel Series 149 Torque Specifications |
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Thread Size (in.)
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Description
|
Torque Specifications | ||
| lb-ft | N-m | |||
|
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-Turbocharger Back Plate Assembly to Center Housing
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7-10
|
9-14
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5/16-24
|
Standard Torque Specification | 15-19 | 20-26 | |
| Nut-Lock-Push Rod | 15-19 | 20-26 | ||
| Nut-Lock Valve Bridge Adj. Screw | 20-25 | 27-34 | ||
| Bolt-Camshaft Drive Coupling | 20-25 | 27-34 | ||
| 3/8-16 | Standard Torque Specification | 30-35 | 41-47 | |
|
3/8-24
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Standard Torque Specification | 35-39 | 47-53 | |
| Nut-Water Pump to Front Cover | 25-30 | 34-41 | ||
| Bolt-Camshaft Drive Coupling | 45-50 | 61-68 | ||
| Bolt-Fuel Pump Drive Coupling Retainer | 50-55 | 68-75 | ||
|
7/16-14
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Standard Torque Specification | 46-50 | 62-68 | |
| Bolt-Blower Hold Down | 50-55 | 68-75 | ||
| Bolt-Injector Hold Down Clamp | 46-50 | 62-68 | ||
|
7/16-20
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Standard Torque Specification | 57-61 | 77-83 | |
| Nut-Fuel Jumper Line to Injector | 18-22 | 24-30 | ||
| Nut-Water Pump Shaft (Lock) | 40-45 | 54-61 | ||
| Bolt-Crankshaft Flange Coupling | 70-80 | 95-108 | ||
|
1/2-13
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Nut-Exhaust Manifold Standard | 32-38 | 43-52 | |
| Nut-Fuel Manifold Connector | 35-40 | 47-54 | ||
| Bolt-Fan Blade to Pulley Hub | 71-75 | 96-102 | ||
| Bolt-Cylinder Block | 75-85 | 102-115 | ||
| Bolt-Crankshaft and Camshaft Idler Hub Center Bolt | 80-90 | 108-122 | ||
| Bolt-Camshaft Bearing Cap | 90-100 | 122-136 | ||
| Bolt-Rocker Arm Shaft | 90-100 | 122-136 | ||
|
1/2-20
|
Standard Torque Specification | 83-93 | 113-126 | |
| Nut-Exhaust Manifold Stud | 35-40 | 47-54 | ||
| Bolt-Cylinder Block | 85-95 | 115-129 | ||
| Bolt-Crankshaft Flange Coupling | 100-110 | 136-149 | ||
|
9/16-12
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Standard Torque Specification | 90-100 | 122-136 | |
| Bolt-Blower Hold Down | 75-85 | 102-115 | ||
| Bolt-Main Bearing Cap | 120-130 | 163-176 | ||
|
9/16-18
|
Standard Torque Specification | 107-117 | 145-159 | |
| Nut-Crankshaft Bearing Cap | 130-140 | 176-190 | ||
| Bolt-Cylinder Head | 90-100* | 122-136 | ||
| 5/8-11 | Standard Torque Specification | 137-147 | 186-199 | |
|
5/8-18
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Standard Torque Specification | 168-178 | 228-241 | |
| Bolt-Crankshaft Adaptor | 175-185 | 237-251 | ||
| Bolt-Flywheel (Self Locking) | 180-190 | 244-258 | ||
| Bolt-Vibration Damper | 180-190 | 244-258 | ||
| Nut-Raw Water Pump Shaft Retaining | 25-30 | 34-41 | ||
| Nut-Alternator Pulley | 70-80 | 95-108 | ||
| Nut-Special Self Locking Nut (10SI Alternator) | 40-60 | 54-81 | ||
| Bolt-Oil Pick-Up Assembly | 20-25 | 27-34 | ||
|
3/4-10
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Nut-Flange Mounted Air Compressor Drive Shaft | 70-80 | 95-108 | |
| Bolt-Crankshaft Main Bearing | 280-290 | 380-393 | ||
| 3/4-16 | Standard Torque Specification | 290-300 | 393-407 | |
| Accessory Drive Pulley Nut | 120-140 | 163-190 | ||
| 3/4-18 | Nut, Dipstick Tube | 30-35 | 41-47 | |
| 7/8-14 | Standard Torque Specification | 475-485 | 644-658 | |
| 1 1/4-7 | Bolt-Crankshaft Pulley Retainer | 450-500 | 610-678 | |
| 1 5/16-18 | Nut-Blower Timing Gear | 200-250 | 271-339 | |
| 2.548-18 | Nut-Idler Gear Bearing (Lock) | 280-300 | 380-407 | |
| 3.137-12 | Nut-Camshaft Gear Bearing (Lock) | 280-300 | 380-407 | |
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* Follow cross-pattern bolt torquing sequence and multiple stage process leading up to the final torque process. After final torque is achieved, turn each bolt 90 degrees (1/4 turn clock-wise) with a single smooth pull of the wrench.
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Detroit Diesel Series 149 Pipe Plug Oil Cooler Torque Specifications |
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Plug Size (in.)
|
Description
|
Torque Specifications | ||
| lb-ft | N-m | |||
| 1 1/16-16 | Plug-Oil Cooler Bypass Valve | 80-90 | 108-122 | |
| 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 | |
| 2-12 | Plug-Oil Filter Bypass | 130-150 | 176-203 | |
Detroit Diesel Series 149 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 | |
Detroit Diesel Series 149 Stud Specifications |
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|
Plug Size (in.)
|
Description
|
Torque Specifications | ||
| lb-ft | N-m | |||
| 1/2-13 | Stud-Exhaust Manifold | 35-40 | 47-54 | |
Parts Catalog for Detroit Diesel 8V149 Non – Turbo
Diesel Pro Power supplies a full range of replacement parts for the Detroit Diesel 8V149 non-turbo engine, covering everything from top-end to bottom-end components. Inventory includes pistons, liners, rings, bearings, and complete overhaul kits, along with cylinder heads, valve train parts, and blower components essential to the 149-series two-stroke design. Cooling system parts such as water pumps, thermostats, and heat-exchanger components are available, as well as fuel injectors, pumps, filters, and fuel lines. Additional offerings include exhaust components, gaskets, seals, hoses, and electrical parts like starters and alternators—supporting reliable service and long-term engine performance.
Parts Catalog for Detroit Diesel 8V149 Turbo
Diesel Pro Power carries an extensive selection of parts for the Detroit Diesel 8V149 turbo engine, supporting full overhauls and ongoing maintenance. Available components include pistons, liners, rings, bearings, and complete rebuild kits, along with cylinder heads, valve train parts, and blower assemblies paired with turbocharger-specific components. Cooling system parts such as raw water pumps, thermostats, and heat-exchanger elements are stocked, as well as injectors, fuel pumps, filters, and fuel lines for dependable fuel delivery. Turbo-related exhaust components, gaskets, seals, hoses, and essential electrical parts like alternators and starters are also offered to maintain peak turbocharged performance.
Parts Catalog for Detroit Diesel 12V149 Non – Turbo
Diesel Pro Power offers a complete selection of parts for the Detroit Diesel 12V149 non-turbo engine, supporting full rebuilds and ongoing maintenance. Available components include pistons, liners, rings, bearings, and complete overhaul kits, along with cylinder heads, valve train parts, and essential blower components for the 149-series two-stroke design. The inventory also covers cooling system parts such as water pumps, thermostats, and heat-exchanger elements, plus injectors, fuel pumps, filters, and fuel lines. Additional offerings include exhaust components, gaskets, seals, hoses, and electrical parts like alternators and starters—ensuring long-term reliability for the 12V149 platform.
Parts Catalog for Detroit Diesel 12V149 Turbo
Diesel Pro Power supplies a wide range of parts for the Detroit Diesel 12V149 turbo engine, engineered to support both routine service and full engine overhauls. Stock includes pistons, liners, rings, bearings, cylinder heads, valve train components, and blower assemblies, paired with turbocharger-specific hardware. The cooling system selection features raw water pumps, thermostats, and heat-exchanger components, while the fuel system lineup includes injectors, fuel pumps, filters, and lines. Turbo-related exhaust parts, gaskets, seals, hoses, and electrical items such as starters and alternators are also available—providing complete coverage to maintain maximum turbocharged performance and engine durability.
Parts Catalog for Detroit Diesel 16V149 Non – Turbo
Diesel Pro Power provides a full inventory of replacement parts for the Detroit Diesel 16V149 non-turbo engine, supporting everything from routine service to complete overhauls. Available components include pistons, liners, rings, bearings, and full rebuild kits, along with cylinder heads, valve train parts, and essential blower components for the 149-series two-stroke design. Additional offerings include raw water pumps, thermostats, heat-exchanger components, injectors, fuel pumps, filters, and fuel lines. Exhaust items, gaskets, seals, hoses, and electrical components such as alternators and starters are also stocked—ensuring dependable long-term performance for the large-frame 16V149 platform.
Parts Catalog for Detroit Diesel 16V149 Turbo
Diesel Pro Power carries an extensive parts selection for the Detroit Diesel 16V149 turbo engine, engineered to support high-output turbocharged operation. Inventory includes pistons, liners, rings, bearings, cylinder heads, valve train components, and blower assemblies matched to turbocharger requirements. Cooling system products include raw water pumps, thermostats, and heat-exchanger elements, while the fuel system lineup offers injectors, fuel pumps, filters, and lines for consistent delivery. Turbo-specific exhaust components, gaskets, seals, hoses, and essential electrical parts such as starters and alternators are also available—providing complete support to maintain maximum reliability and performance in demanding applications.
