GM Service Manual Online
For 1990-2009 cars only

Engine Overhaul L57

To disassemble, overhaul, repair or assemble the 6.5L Diesel engine, use the Disassembly, Overhaul, Repair and Assembly sequence listed below.

  1. Accessory Removal
  2. Engine Flywheel Removal
  3. Clutch Pilot Bearing Removal
  4. Oil Fill Tube Removal
  5. Oil Level Indicator and Tube Removal
  6. Thermostat Removal
  7. Intake Manifold Removal (L57, L65)
  8. Engine Wiring Harness Assembly Removal
  9. Turbocharger Removal
  10. Oil Pump Drive Removal
  11. Exhaust Manifold Removal (L57)
  12. Water Pump Removal
  13. Fuel Injection Pump Removal
  14. Crankshaft Balancer Removal
  15. Engine Front Cover Removal
  16. Timing Chain Wear Check
  17. Timing Chain and Camshaft Sprocket Removal
  18. Valve Rocker Arm Cover Removal
  19. Valve Rocker Arm, Shaft, and Push Rod Removal
  20. Cylinder Head Removal
  21. Valve Lifter Removal
  22. Camshaft Removal
  23. Oil Pan Removal
  24. Oil Pump Removal
  25. Piston, Connecting Rod, and Bearing Removal
  26. Crankshaft Rear Oil Seal Removal
  27. Crankshaft and Bearings Removal
  28. Camshaft Bearing Removal
  29. Oil Filter Adapter Removal
  30. Engine Block Plug Removal
  31. Piston Oil Cooling Nozzle Removal
  32. Engine Block Cleaning and Inspection
  33. Cylinder Boring and Honing
  34. Crankshaft and Bearing Cleaning and Inspection
  35. Crankshaft Balancer Clean and Inspect
  36. Engine Flywheel Clean and Inspect
  37. Piston and Connecting Rod Disassemble
  38. Piston, Connecting Rod, and Bearing Cleaning and Inspection
  39. Piston Selection
  40. Piston and Connecting Rod Assemble
  41. Camshaft and Bearings Cleaning and Inspection
  42. Timing Chain and Sprockets Clean and Inspect
  43. Valve Rocker Arm and Shaft Disassemble
  44. Valve Rocker Arm and Shaft Clean and Inspect
  45. Valve Rocker Arm and Shaft Assemble
  46. Valve Lifters and Guides Clean and Inspect
  47. Cylinder Head Disassemble
  48. Cylinder Head Cleaning and Inspection
  49. Valve Guide Reaming/Valve and Seat Grinding
  50. Cylinder Head Assemble
  51. Oil Pump Disassemble
  52. Oil Pump Clean and Inspect
  53. Oil Pump Assemble
  54. Engine Front Cover Clean and Inspect
  55. Valve Rocker Arm Cover Clean and Inspect
  56. Oil Pan Clean and Inspect
  57. Intake Manifold Clean and Inspect
  58. Exhaust Manifold Clean and Inspect
  59. Water Pump Clean and Inspect
  60. Fuel Injection Pump Clean and Inspect
  61. Service Prior to Assembly
  62. Piston Oil Cooling Nozzle Installation
  63. Engine Block Plug Installation
  64. Oil Filter Adapter Installation
  65. Camshaft Bearing Installation
  66. Crankshaft and Bearings Installation (L57)
  67. Crankshaft Rear Oil Seal Installation
  68. Piston, Connecting Rod, and Bearing Installation
  69. Oil Pump Installation
  70. Oil Pan Installation
  71. Camshaft Installation
  72. Valve Lifter Installation
  73. Cylinder Head Installation
  74. Valve Rocker Arm, Shaft, and Push Rod Installation
  75. Valve Rocker Arm Cover Installation
  76. Timing Chain and Sprockets Installation
  77. Engine Front Cover Installation
  78. Crankshaft Balancer Installation
  79. Fuel Injection Pump Installation
  80. Water Pump Installation
  81. Exhaust Manifold Installation (L57)
  82. Oil Pump Drive Installation
  83. Turbocharger Installation
  84. Engine Wiring Harness Assembly Installation
  85. Intake Manifold Installation (L57, L65)
  86. Thermostat Installation (L57, L65)
  87. Oil Level Indicator and Tube Installation
  88. Oil Fill Tube Installation
  89. Clutch Pilot Bearing Installation
  90. Engine Flywheel Installation
  91. Accessory Installation
  92. Engine Set-Up and Testing
  93. Thread Repair

Engine Overhaul L65

To disassemble, overhaul, repair or assemble the 6.5L Diesel engine, use the Disassembly, Overhaul, Repair and Assembly sequence listed below.

  1. Accessory Removal
  2. Engine Flywheel Removal
  3. Clutch Pilot Bearing Removal
  4. Oil Fill Tube Removal
  5. Oil Level Indicator and Tube Removal
  6. Thermostat Removal
  7. Intake Manifold Removal (L65)
  8. Engine Wiring Harness Assembly Removal
  9. Turbocharger Removal
  10. Oil Pump Drive Removal
  11. Exhaust Manifold Removal (L65)
  12. Water Pump Removal
  13. Fuel Injection Pump Removal
  14. Crankshaft Balancer Removal
  15. Engine Front Cover Removal
  16. Timing Chain Wear Check
  17. Timing Chain and Camshaft Sprocket Removal
  18. Valve Rocker Arm Cover Removal
  19. Valve Rocker Arm, Shaft, and Push Rod Removal
  20. Cylinder Head Removal
  21. Valve Lifter Removal
  22. Camshaft Removal
  23. Oil Pan Removal
  24. Oil Pump Removal
  25. Piston, Connecting Rod, and Bearing Removal
  26. Crankshaft Rear Oil Seal Removal
  27. Crankshaft and Bearings Removal
  28. Camshaft Bearing Removal
  29. Oil Filter Adapter Removal
  30. Engine Block Plug Removal
  31. Piston Oil Cooling Nozzle Removal
  32. Engine Block Cleaning and Inspection
  33. Cylinder Boring and Honing
  34. Crankshaft and Bearing Cleaning and Inspection
  35. Crankshaft Balancer Clean and Inspect
  36. Engine Flywheel Clean and Inspect
  37. Piston and Connecting Rod Disassemble
  38. Piston, Connecting Rod, and Bearing Cleaning and Inspection
  39. Piston Selection
  40. Piston and Connecting Rod Assemble
  41. Camshaft and Bearings Cleaning and Inspection
  42. Timing Chain and Sprockets Clean and Inspect
  43. Valve Rocker Arm and Shaft Disassemble
  44. Valve Rocker Arm and Shaft Clean and Inspect
  45. Valve Rocker Arm and Shaft Assemble
  46. Valve Lifters and Guides Clean and Inspect
  47. Cylinder Head Disassemble
  48. Cylinder Head Cleaning and Inspection
  49. Valve Guide Reaming/Valve and Seat Grinding
  50. Cylinder Head Assemble
  51. Oil Pump Disassemble
  52. Oil Pump Clean and Inspect
  53. Oil Pump Assemble
  54. Engine Front Cover Clean and Inspect
  55. Valve Rocker Arm Cover Clean and Inspect
  56. Oil Pan Clean and Inspect
  57. Intake Manifold Clean and Inspect
  58. Exhaust Manifold Clean and Inspect
  59. Water Pump Clean and Inspect
  60. Fuel Injection Pump Clean and Inspect
  61. Service Prior to Assembly
  62. Piston Oil Cooling Nozzle Installation
  63. Engine Block Plug Installation
  64. Oil Filter Adapter Installation
  65. Camshaft Bearing Installation
  66. Crankshaft and Bearings Installation (L65)
  67. Crankshaft Rear Oil Seal Installation
  68. Piston, Connecting Rod, and Bearing Installation
  69. Oil Pump Installation
  70. Oil Pan Installation
  71. Camshaft Installation
  72. Valve Lifter Installation
  73. Cylinder Head Installation
  74. Valve Rocker Arm, Shaft, and Push Rod Installation
  75. Valve Rocker Arm Cover Installation
  76. Timing Chain and Sprockets Installation
  77. Engine Front Cover Installation
  78. Crankshaft Balancer Installation
  79. Fuel Injection Pump Installation
  80. Water Pump Installation
  81. Exhaust Manifold Installation (L65)
  82. Oil Pump Drive Installation
  83. Turbocharger Installation
  84. Engine Wiring Harness Assembly Installation
  85. Intake Manifold Installation (Upper-L65)
  86. Thermostat Installation (L57, L65)
  87. Oil Level Indicator and Tube Installation
  88. Oil Fill Tube Installation
  89. Clutch Pilot Bearing Installation
  90. Engine Flywheel Installation
  91. Accessory Installation
  92. Engine Set-Up and Testing
  93. Thread Repair