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- Torque Specs
- 2004.5 - 2005 Duramax LLY Torque Specs
2004.5 - 2005 Duramax LLY Torque Specs
| LLY Aftermarket Fastener Torque Specs | |
| SoCal Diesel LLY Billet Injector Clamps | 32 lb ft |
| ARP 12mm Head Studs #230-4201 | 125 lb ft |
| ARP 12mm 625 Material Head Studs #230-4202 | 150 lb ft |
| SoCal Diesel 14mm Head Stud Kit | 190 lb ft |
| ARP Main Stud Kit #230-5401 | 190 lb ft |
| ARP Main Stud Kit #230-5401 Cross Bolts | 90 lb ft |
| ARP Flywheel Bolts #230-2901 | 250 lb ft |
| SoCal Diesel Rocker Stud Kit | 55 lb ft |
| SoCal Diesel Street Rods | 80 lb ft |
| 2004.5 – 2005 LLY Torque Specs | |
| A/C Compressor Bolt | 37 lb ft |
| Air Conditioning Compressor/Power Steering Pump Bracket Bolt | 34 lb ft |
| Camshaft Gear Bolt | 173 lb ft |
| Camshaft Position Sensor Bolt | 89 lb in |
| Camshaft Position Sensor Exciter Ring Bolt | 80 lb in |
| Camshaft Thrust Plate Bolt | 16 lb ft |
| Connecting Rod Cap Bolt - Angular Tightening Method | 1st Step 47 lb ft |
| 2nd Step 30 degrees | |
| 3rd Step 30 degrees | |
| Coolant Pipe Bolt and Nut | 18 lb ft |
| Coolant Tube to Water Pump Nut | 18 lb ft |
| Cooling Fan Pulley | 30 lb ft |
| Crankshaft Balancer Bolt | 1st Step 74 lb ft |
| 2nd Step 105 degrees | |
| Crankshaft Bearing Cap Bolt | 1st Step 72 lb ft |
| 2nd Step 97 lb ft | |
| 3rd Step 60 degrees | |
| Crankshaft Bearing Cap Side Bolt | 52 lb ft |
| Crankshaft Position Sensor Bolt | 89 lb in |
| Crankshaft Position Sensor Spacer Bolt | 89 lb in |
| Cylinder Head M12 Bolt - Angular Tightening Method | 1st Step 37 lb ft |
| 2nd Step 59 lb ft | |
| 3rd Step 60 degrees | |
| 4th Step 60 degrees | |
| Cylinder Head M8 Bolt | 18 lb ft |
| Drive Belt Tensioner Pulley Bolt | 37 lb ft |
| Engine Mount Through Bolt to Frame | 55 lb ft |
| Engine Mount to Block Bolts | 43 lb ft |
| Engine Mount to Frame Bolt | 48 lb ft |
| Exhaust Manifold Bolt/Nut | 28 lb ft |
| Exhaust Manifold Heat Shield Bolts | 89 lb in |
| Exhaust Outlet Clamp | 11 lb ft |
| Exhaust Outlet Heat Shield Bolts | 89 lb in |
| Exhaust Pipe Bracket Nut | 39 lb ft |
| Exhaust Pipe Clamp | 39 lb ft |
| Exhaust Pipe Heat Shield Bolts | 89 lb in |
| Fan Pulley Bracket Bolt | 37 lb ft |
| Flywheel Bolt - Angular Tightening Method | 1st Step 58 lb ft |
| 2nd Step 60 degrees | |
| 3rd Step 60 degrees | |
| Flywheel Housing to Block Bolt | 60 lb ft |
| Flywheel Housing to Upper Oil Pan Bolt | 37 lb ft |
| Front Engine Cover Bolt | 18 lb ft |
| Fuel Filter Bracket Bolt | 22 lb ft |
| Fuel Injection Control Module Bolt | 15 lb ft |
| Fuel Injection Control Module Bracket Bolt | 15 lb ft |
| Fuel Injection Control Module Connector Bolt | 89 lb in |
| Fuel Injection Control Module Connector Bracket Bolt | 15 lb ft |
| Fuel Injection Control Module Cooler Eye Bolt | 20 lb ft |
| Fuel Injection Pipe Nut | 30 lb ft |
| Fuel Injector Bracket Bolt | 22 lb ft |
| Fuel Inlet Pipe Bracket Bolt | 15 lb ft |
| Fuel Injection Pump Assembly to Cylinder Block Bolt | 18 lb ft |
| Fuel Injection Pump to Bracket Bolt | 20 lb ft |
| Fuel Injection Pump Drive Gear Nut | 52 lb ft |
| Fuel Line Bracket Nut | 15 lb ft |
| Fuel Pressure Relief Valve | 74 lb ft |
| Fuel Pressure Sensor | 52 lb ft |
| Fuel Temperature Sensor | 16 lb ft |
| Fuel Pipes Bracket Bolt | 18 lb ft |
| Fuel Rail Assembly Bolt | 18 lb ft |
| Fuel Rail Balance Pipe Bolt | 15 lb ft |
| Generator Positive Cable Nut | 80 lb in |
| Glow Plug | 13 lb ft |
| Glow Plug Nut | 18 lb in |
| Heater Outlet Pipe Bolt | 18 lb ft |
| Heater Pipe Bolt | 18 lb ft |
| Idle Pulley Bolt | 37 lb ft |
| Injector Bracket Bolt | 16 lb ft |
| Intake Manifold Bolts/Nuts | 18 lb ft |
| Oil Cooler Adapter Bolts | 18 lb ft |
| Oil Cooler Adapter Nuts | 18 lb ft |
| Oil Cooler Assembly Bolts | 18 lb ft |
| Oil Cooler Adapter Stud | 89 lb in |
| Oil Drain Plug | 25 lb ft |
| Oil Fill Tube Bolt | 18 lb ft |
| Oil Gallery Plugs | 39 lb ft |
| Oil Level Indicator Tube Bolt | 15 lb ft |
| Oil Level Sensor Bolt | 89 lb in |
| Oil Level Sensor Harness Bolt | 29 lb ft |
| Oil Pan Bolts/Nuts – Lower | 89 lb in |
| Oil Pan Bolt – Upper | 15 lb ft |
| Oil Pan Skid Plate Bolt | 15 lb ft |
| Oil Pressure Sensor Unit | 36 lb ft |
| Oil Pressure Relief Valve | 29 lb ft |
| Oil Pump Bolt | 15 lb ft |
| Oil Pump Driven Gear Nut | 74 lb ft |
| Oil Pump Gear Cover Bolt | 15 lb ft |
| Oil Pump Pipe and Screen Assembly Bolts and Nuts | 18 lb ft |
| Piston Cooling Nozzle Eye Bolt | 15 lb ft |
| Rocker Arm Shaft Bracket Bolt | 30 lb ft |
| Starter Motor Bolt | 58 lb ft |
| Thermostat Housing Bolts/Nuts | 18 lb ft |
| Thermostat Cover Bolt | 18 lb ft |
| Torque Converter Bolt | 44 lb ft |
| Turbocharger Bolt | 80 lb ft |
| Turbocharger Boost Sensor Bolt | 89 lb in |
| Turbocharger Oil Return Pipe Stud | 89 lb in |
| Turbocharger Oil Supply Hose Eye Bolt | 19 lb ft |
| Turbocharger Oil Return Pipe Bolts/Nuts | 18 lb ft |
| Upper Oil Pan to Flywheel Housing Screws | 15 lb ft |
| Valve Adjusting Nut | 16 lb ft |
| Valve Lifter Holdown Bracket Bolt | 97 lb in |
| Valve Rocker Arm Cover Bolt – Lower | 89 lb in |
| Valve Rocker Arm Cover Bolt – Upper | 71 lb in (Two Times) |
| Water Outlet Bolts | 18 lb ft |
| Water Pump Bolt | 18 lb ft |
| Water Pump Inlet Pipe Bolts | 18 lb ft |