To the top of the document
Nubira-Lacetti
To Previous Page To Next Page
GMDE Start Page Load static TOC Load dynamic TOC Help?

UNIT REPAIR


J3B11CC5
Display graphicTranslations of text in graphics


Cylinder Head and Valve Train Components

Tools Required

MKM-571-B Gauge
KM-340-0 Cutter Set
KM-340-7 Guide Drift
KM-340-13 Cutters
KM-340-26 Cutters
KM-348 Valve Spring Compressor
KM-653 Adapter
KM-805 Valve Guide Reamer

Disassembly Procedure

  1. Remove the cylinder head with the intake manifold and the exhaust manifold attached. Refer to "Cylinder Head and Gasket" in this section.
  2. Remove the engine coolant temperature sensor.
  3. Remove the exhaust manifold heat shield bolts.
  4. Remove the exhaust manifold heat shield.
  5. Remove the exhaust manifold retaining nuts in the sequence shown.
  6. Remove the exhaust manifold.
  7. Remove the exhaust manifold gasket.
  8. Remove the exhaust manifold studs.

    9. J3B11CK
    Display graphicTranslations of text in graphics


  9. Remove the thermostat housing mounting bolts.
  10. Remove the thermostat housing assembly.
  11. Remove the fuel rail retaining bolts and the fuel rail assembly.

    12. J3B11CB8
    Display graphicTranslations of text in graphics


  12. Remove the intake manifold retaining nuts and retaining bolts in the sequence shown.
  13. Remove the intake manifold.
  14. Remove the intake manifold studs.

    15. J3B11CK2
    Display graphicTranslations of text in graphics


  15. Remove the direct ignition system (DIS) coil mounting bolts.
  16. Remove the DIS coil with the ignition wires attached.
  17. Remove the DIS coil mounting bracket bolts.
  18. Remove the DIS coil mounting bracket.
  19. Remove the electrical exhaust gas recirculation (EEGR) valve adapter bolts.
  20. Remove the EEGR valve adapter.
  21. Remove the EEGR valve adapter gasket.
  22. Remove the spark plugs.

    23. J3B11CF1
    Display graphicTranslations of text in graphics


  23. Remove the camshaft cap bolts gradually and in the sequence shown for each camshaft cap.

    24. J3B11CK3
    Display graphicTranslations of text in graphics


  24. Remove the intake camshaft caps. Maintain the correct positions for installation.
  25. Remove the intake camshaft.
  26. Remove the intake valve tappet adjusters.
  27. Remove the exhaust camshaft caps. Maintain the correct positions for installation.
  28. Remove the exhaust camshaft.
  29. Remove the exhaust valve tappet adjusters.

    30. J3B11CK4
    Display graphicTranslations of text in graphics


  30. Compress the valve springs with the valve spring compressor KM-348 and the adapter KM-653.
  31. Remove the valve keys.
  32. Remove the valve spring compressor KM-348 and the adapter KM-653.
  33. Remove the valve spring caps.
  34. Remove the valve springs. Maintain the original position of the valve springs for installation.

    35. J3B11CK5
    Display graphicTranslations of text in graphics


  35. Remove the valves. Maintain the original position of the valves for installation.
  36. Remove the valve stem seals.

J3B11CK6
Display graphicTranslations of text in graphics


Cylinder Head Inspection

  1. Clean the sealing surfaces.
  2. Inspect the cylinder head gasket and mating surfaces for leaks, corrosion, and blowby.
  3. Inspect the cylinder head for cracks.
  4. Inspect the length and the width of the cylinder head using a feeler gauge and a straight edge.
  5. Check the sealing surfaces for deformation and warpage. The cylinder head sealing surfaces must be flat within 0.050 mm (0.002 inch) maximum.

    6. J3B11CK7
    Display graphicTranslations of text in graphics


  6. Measure the height of the cylinder head from sealing surface to sealing surface. The cylinder head height should be 134.08 to 134.23 mm. If the cylinder head height is less than 134.08 mm, replace the cylinder head.
  7. Inspect all threaded holes for damage.
  8. Inspect valve seats for excessive wear and burned spots.

J3B11CK8
Display graphicTranslations of text in graphics


Valve Inspection

  1. Inspect the valve stem tip for wear.
  2. Inspect the valve key grooves and the oil seal grooves for chips and wear.
  3. Inspect the valves for burns or cracks.
  4. Inspect the valve stem for burrs and scratches.
  5. Inspect the valve stem. The valve stem must be straight.
  6. Inspect the valve face for grooving. If the groove is so deep that refacing the valve would result in a sharp edge, replace the valve.

    7. J3B11CK9
    Display graphicTranslations of text in graphics


  7. Inspect the valve spring. If the valve spring ends are not parallel, replace the valve spring.
  8. Measure the valve spring height. Refer to "Engine Specifications" in this section. If the valve spring height does not match the specifications, replace the valve spring.
  9. Inspect the valve spring seating surface of the valve rotators for wear or gouges. Replace as required.

J3B11CL1
Display graphicTranslations of text in graphics


Cleaning Procedure

  1. Clean the cylinder head.
  2. Clean the valve guides.
  3. Clean all of the threaded holes.
  4. Clean the valves of carbon, oil, and varnish.

J3B11CL2
Display graphicTranslations of text in graphics


Cylinder Head Overhaul

Valve Grind-in

  1. Lubricate the valve stem using a fine-grained paste.
  2. Lift the valve rhythmically from the seat with a commercially available valve grinding tool in order to distribute the paste.

    3. J3B11CL3
    Display graphicTranslations of text in graphics


  3. Check the contact pattern on the valve head and in the cylinder head.
  4. Clean the valves, the valve guides, and the cylinder head.

J3B11CL4
Display graphicTranslations of text in graphics


Valve Grind

  1. Ensure that there are no crater line burns on the valve cone.
  2. The valve may be reground only two times. Do not grind the valve stem end.
  3. The angle at the valve face is 45 degrees.
  4. Inspect the assembly height of the intake valves and the exhaust valves.

J3B11CL5
Display graphicTranslations of text in graphics


Valve Guide - Ream

  1. Measure the diameter of the valve guide using the gauge MKM-571-B and a commercially available inside micrometer.

    2. J3B11CL6
    Display graphicTranslations of text in graphics


    Important : Valve oversizes may already have been fitted in production.

  2. An oversize service code is on the valve guide and the valve stem end. The following table gives the correct size, reamer, and production code for each service.
    3. Size
    Reamer
    Production Code
    Service Code
    Normal
    -
    -
    K
    0.075
    KM-805
    1
    K1
    0.150
    -
    2
    K2
  3. Ream the valve guide from the upper side of the cylinder head to the next oversize.
  4. After reaming, cross out the code and emboss the valve guide with the new code.

J3B11CL7
Display graphicTranslations of text in graphics


Valve Seat - Cut

  1. Place the cylinder head on wooden blocks.
  2. Cut the intake and the exhaust valve seats using the guide drift KM-340-7 as follows:
  3. Clean the chippings from the cylinder head.

  4. Inspect the dimension for the valve seat width.
  5. Inspect the assembly height of the intake valves and the exhaust valves. If the dimension is exceeded, install new valves. Inspect the assembly height of the intake valves and the exhaust valves again. If the valve assembly height is still too large despite replacing the valves, replace the cylinder head.

J3B11CL8
Display graphicTranslations of text in graphics


Assembly Procedure

  1. Install the valve stem seals.
  2. Lubricate the valve stems with engine oil.
  3. Carefully install the valves in their original positions. Do not damage the valve stem seals.
  4. Install the valve springs in their original positions.
  5. Install the valve spring caps.

    6. J3B11CK4
    Display graphicTranslations of text in graphics


  6. Compress the valve springs with the valve spring compressor KM-348 and adapter KM-653.
  7. Install the valve keys.
  8. Remove the valve spring compressor KM-348 and adapter KM-653.

    9. J3B11CK3
    Display graphicTranslations of text in graphics


  9. Lubricate the valve tappet adjusters with engine oil.
  10. Install the valve tappet adjusters.

    11. J3B11CF1
    Display graphicTranslations of text in graphics


  11. Install the intake camshaft.
  12. Install the intake camshaft caps in their original positions.
  13. Install the exhaust camshaft.
  14. Install the exhaust camshaft caps in their original positions.
  15. Install the camshaft cap bolts.
  16. Tighten the camshaft cap bolts gradually and in the sequence shown for each camshaft cap.

    17. Tighten
    Tighten the camshaft cap bolts to 16 N•m (12 lb-ft).


    J3B11CD1
    Display graphicTranslations of text in graphics


  17. Install the spark plugs.

    18. Tighten
    Tighten the spark plugs to 25 N•m (18 lb-ft).

  18. Install the EGR valve adapter gasket.
  19. Install the EGR valve adapter.
  20. Install the EGR valve adapter bolts.

    21. Tighten
    Tighten the exhaust gas recirculation valve adapter bolts to 25 N•m (18 lb-ft).

  21. Install the DIS coil mounting bracket.
  22. Install the DIS coil mounting bracket bolts.

    23. Tighten
    Tighten the direct ignition system coil mounting bracket bolts to 10 N•m (89 lb-in).

  23. Install the DIS coil with the ignition wires attached.
  24. Install the DIS coil mounting bolts.

    25. Tighten
    Tighten the direct ignition system coil mounting bolts to 10 N•m (89 lb-in).


    J3B11CB8
    Display graphicTranslations of text in graphics


  25. Install the intake manifold studs.
  26. Install the intake manifold.
  27. Install the intake manifold retaining nuts and retaining bolts in the sequence shown.

    28. Tighten
    Tighten the intake manifold retaining nuts and retaining bolts to 25 N•m (18 lb-ft).


    J3B11CK1
    Display graphicTranslations of text in graphics


  28. Install the fuel rail assembly with the bolts.

    29. Tighten
    Tighten the fuel rail assembly retaining bolts to 25 N•m (18 lb-ft).

  29. Install the thermostat housing assembly.
  30. Install the thermostat housing mounting bolts.

    31. Tighten
    Tighten the thermostat housing mounting bolts to 20 N•m (15 lb-ft).


    J3B11CK1
    Display graphicTranslations of text in graphics


  31. Install the exhaust manifold studs.
  32. Install the exhaust manifold gasket.
  33. Install the exhaust manifold.
  34. Install the exhaust manifold retaining nuts in the sequence shown.

    35. Tighten
    Tighten the exhaust manifold retaining nuts to 25 N•m (18 lb-ft).

  35. Install the exhaust manifold heat shield.
  36. Install the exhaust manifold heat shield bolts.

    37. Tighten
    Tighten the exhaust manifold heat shield bolts to 15 N•m (11 lb-ft).


    J3B11CM1
    Display graphicTranslations of text in graphics


  37. Install the ECT sensor.

    38. Tighten
    Tighten the engien coolant temperature sensor to 20 N•m (15 lb-ft).

  38. Install the cylinder head with the intake manifold and the exhaust manifold attached. Refer to "Cylinder Head and Gasket" in this section.

J3B11CM2
Display graphicTranslations of text in graphics


Crankshaft

Tools Required

KM-412 Engine Overhaul Stand
J-42492 Timing Belt Adjuster
KM-470-B Angular Torque Gauge
J-36792 or KM-635 Crankshaft Rear Oil Seal Installer

Notice : Take extreme care to prevent any scratches, nicks, or damage to the camshafts.

Disassembly Procedure

  1. Remove the engine. Refer to "Engine" in this section.
  2. Remove the flywheel or flexible plate bolts.
  3. Remove the flywheel or the flexible plate.

    4. J3B11CM3
    Display graphicTranslations of text in graphics


  4. Remove the crankshaft rear oil seal.
  5. Mount the engine assembly on the engine overhaul stand KM-412.

    6. J3B11CM4
    Display graphicTranslations of text in graphics


  6. Remove the upper and the lower front timing belt cover bolts.
  7. Remove the upper and the lower front timing belt cover.

    8. J3B11CE7
    Display graphicTranslations of text in graphics


  8. Slightly loosen the water pump retaining bolts.

    9. J3B11CD5
    Display graphicTranslations of text in graphics


  9. Rotate the water pump using the timing belt adjuster J-42492 to remove the tension from the timing belt.
  10. Remove the spark plug cover bolts.

    11. J3B11CA9
    Display graphicTranslations of text in graphics


  11. Disconnect the engine ventilation hoses from the camshaft cover.
  12. Disconnect the oil filler cap.
  13. Remove the spark plug cover bolts.
  14. Remove the spark plug cover.
  15. Disconnect the ignition wires from the spark plugs.
  16. Remove the camshaft cover nuts.
  17. Remove the camshaft cover washers.
  18. Remove the camshaft cover and the camshaft cover gasket.

    19. J3B11CD7
    Display graphicTranslations of text in graphics


    Notice : Take extreme care to prevent any scratches, nicks or damage to the camshafts.

  19. While holding the intake camshaft firmly in place, remove the intake camshaft bolt.
  20. Remove the intake camshaft gear.
  21. While holding the exhaust camshaft firmly in place, remove the exhaust camshaft bolt.
  22. Remove the exhaust camshaft gear.

    23. J3B11CH7
    Display graphicTranslations of text in graphics


  23. Remove the timing belt automatic tensioner bolts.
  24. Remove the timing belt automatic tensioner.
  25. Remove the timing belt idler pulley bolt.
  26. Remove the timing belt idler pulley.

    27. J3B11CD8
    Display graphicTranslations of text in graphics


  27. Remove the crankshaft timing belt gear.
  28. Remove the rear timing belt cover bolts.
  29. Remove the rear timing belt cover.

    30. J3B11CM5
    Display graphicTranslations of text in graphics


  30. Rotate the engine on the engine overhaul stand KM-412.

    31. J3B11CM6
    Display graphicTranslations of text in graphics


  31. Remove the oil pan retaining bolts.
  32. Remove the oil pan.
  33. Remove the oil suction pipe bolts.
  34. Remove the oil suction pipe.

    35. J3B11CM7
    Display graphicTranslations of text in graphics


  35. Remove the oil pump retaining bolts.
  36. Remove the oil pump.

    37. J3B11CM8
    Display graphicTranslations of text in graphics


  37. Mark the order of the connecting rod bearing caps.
  38. Remove the connecting rod bearing cap bolts for all of the pistons.
  39. Remove the connecting rod bearing caps and the lower connecting rod bearings.
  40. Remove the upper connecting rod bearings.

    41. J3B11CM8
    Display graphicTranslations of text in graphics


  41. Mark the order of the crankshaft bearing caps.
  42. Remove the crankshaft bearing cap bolts.
  43. Remove the crankshaft bearing caps and the lower crankshaft bearings.
  44. Remove the crankshaft.
  45. Remove the upper crankshaft bearings.
  46. Clean the parts, as needed.

J3B11CM9
Display graphicTranslations of text in graphics


Assembly Procedure

  1. Coat the crankshaft bearings with the engine oil.
  2. Install the upper crankshaft bearings in the engine block.

    3. J3B11CN1
    Display graphicTranslations of text in graphics


  3. Install the crankshaft.
  4. Install the lower crankshaft bearings in the bearing caps.
  5. Inspect the crankshaft end play with the crankshaft bearings installed.
  6. Check for permissible crankshaft end play. Refer to "Engine Specifications" in this section.

    7. J3B11CN2
    Display graphicTranslations of text in graphics


  7. With the crankshaft mounted on the front and the rear crankshaft bearings, check the middle crankshaft journal for permissible out-of-round (runout). Refer to "Engine Specifications" in this section.

    8. J3B11CN3
    Display graphicTranslations of text in graphics


    Important : Grease the crankshaft journals and lubri-cate the crankshaft bearings slightly so that the plastic gauging thread does not tear when the crankshaft bearing caps are removed.

  8. Inspect all of the crankshaft bearing clearances using a commercially available plastic gauging (ductile plastic threads).
  9. Cut the plastic gauging threads to the length of the bearing width. Lay them axially between the crankshaft journals and the crankshaft bearings.
  10. Install the crankshaft bearing caps and the bolts.

    11. Tighten
    Tighten the crankshaft bearing cap bolts to 50 N•m (37 lb-ft) plus 45 degrees plus 15 degrees.


    J3B11CN4
    Display graphicTranslations of text in graphics


  11. Remove the crankshaft bearing cap bolts and the caps.
  12. Measure the width of the flattened plastic thread of the plastic gauging using a ruler. (Plastic gauging is available for different tolerance ranges.)
  13. Inspect the bearing clearance for permissible tolerance ranges. Refer to "Engine Specifications" in this section.

    14. J3B11CN5
    Display graphicTranslations of text in graphics


  14. Apply a bead of adhesive sealing compound to the grooves of the crankshaft bearing caps.
  15. Install the crankshaft bearing caps to the engine block.
  16. Tighten the crankshaft bearing caps using new bolts.

    17. Tighten
    Tighten the crankshaft bearing cap bolts to 50 N•m (37 lb-ft) using a torque wrench. Use the angular torque gauge KM-470-B to tighten the crankshaft bearings 45 degrees plus 15 degrees.


    J3B11CN3
    Display graphicTranslations of text in graphics


    Important : Grease the connecting rod journals and lubricate the connecting rod bearings slightly so that the plastic gauging thread does not tear when the connecting rod bearing caps are removed.

  17. Inspect all of the connecting rod bearing clearances using a commercially available plastic gauging (ductile plastic threads).
  18. Cut the plastic gauging threads to the length of the connecting rod bearing width. Lay them axially between the connecting rod journals and the connecting rod bearings.
  19. Install the connecting rod bearing caps.

    20. Tighten
    Tighten the connecting rod bearing cap bolts to 25 N•m (18 lb-ft) using a torque wrench. Use the angular torque gauge KM-470-B to tighten the connecting rod bearing cap bolts 30 degrees plus 15 degrees.


    J3B11CN4
    Display graphicTranslations of text in graphics


  20. Remove the connecting rod bearing caps.
  21. Measure the width of the flattened plastic thread of the plastic gauging using a ruler. (Plastic gauging is available for different tolerance ranges.)
  22. Inspect the bearing clearance for permissible tolerance ranges. Refer to "Engine Specifications" in this section.

    23. J3B11CJ9
    Display graphicTranslations of text in graphics


  23. Install the connecting rod bearing caps to the connecting rods.
  24. Tighten the connecting rod bearing caps using new bolts.

    25. Tighten
    Tighten the connecting rod bearing cap bolts to 25 N•m (18 lb-ft) using a torque wrench. Use the angular torque gauge KM-470-B to tighten the connecting rod cap bolts 30 degrees plus 15 degrees.


    J3B11CN6
    Display graphicTranslations of text in graphics


  25. Install the oil pump.
  26. Install the oil pump retaining bolts.

    27. Tighten
    Tighten the oil pump retaining bolts to 10 N•m (89 lb-in).


    J3B11CN7
    Display graphicTranslations of text in graphics


  27. Install the oil suction pipe.
  28. Install the oil suction pipe bolts.

    29. Tighten
    Tighten the oil suction pipe bolts to 10 N•m (89 lb-in).


    J3B11CG6
    Display graphicTranslations of text in graphics


  29. Coat the new oil pan gasket with sealant.
  30. Install the oil pan gasket to the oil pan.
  31. Install the oil pan.
  32. Install the oil pan retaining bolts.

    33. Tighten
    Tighten the oil pan retaining bolts to 10 N•m (89 lb-in).


    J3B11CM5
    Display graphicTranslations of text in graphics


  33. Rotate the engine on the engine overhaul stand KM-412.

    34. J3B11CH9
    Display graphicTranslations of text in graphics


  34. Install the rear timing belt cover.
  35. Install the rear timing belt cover bolts.

    36. Tighten
    Tighten the rear timing belt cover bolts to 10 N•m (89 lb-in).


    J3B11CH8
    Display graphicTranslations of text in graphics


  36. Install the crankshaft timing belt gear.
  37. Install the timing belt automatic tensioner.
  38. Install the timing belt automatic tensioner bolts.

    39. Tighten
    Tighten the timing belt automatic tensioner bolts to 25 N•m (18 lb-ft).

  39. Install the timing belt idler pulley.
  40. Install the timing belt idler pulley bolt.

    41. Tighten
    Tighten the timing belt idler pulley bolt to 40 N•m (30 lb-ft).


    J3B11CD7
    Display graphicTranslations of text in graphics


    Notice : Take extreme care to prevent any scratches, nicks or damage to the camshafts.

  41. Install the intake camshaft gear.
  42. Install the intake camshaft gear bolt while holding the intake camshaft firmly in place.

    43. Tighten
    Tighten the intake camshaft gear bolt to 67.5 N•m (49 lb-ft).

  43. Install the exhaust camshaft gear.
  44. Install the exhaust camshaft gear bolt while holding the exhaust camshaft firmly in place.

    45. Tighten
    Tighten the exhaust camshaft gear bolt to 67.5 N•m (49 lb-ft).


    J3B11CA9
    Display graphicTranslations of text in graphics


  45. Install the timing belt. Refer to "Timing Belt" in this section.
  46. Adjust the timing belt tension. Refer to "Timing Belt Check and Adjust" in this section.
  47. Apply a small amount of gasket sealant to the corners of the front camshaft caps and to the top of the rear camshaft cover-to-cylinder head seal.
  48. Install the camshaft cover and the camshaft cover gasket.
  49. Install the camshaft cover washers.
  50. Install the camshaft cover nuts.

    51. Tighten
    Tighten the camshaft cover nuts to 10 N•m (89 lb-in).


    J3B11CM4
    Display graphicTranslations of text in graphics


  51. Connect the ignition wires to the spark plugs.
  52. Connect the oil filler cap.
  53. Connect the engine ventilation hose to the camshaft cover.
  54. Install the upper and the lower front timing belt covers.
  55. Install the upper and the lower front timing belt cover bolts.

    56. Tighten
    Tighten the upper and the lower front timing belt cover bolts to 10 N•m (89 lb-in).


    J3B11CM5
    Display graphicTranslations of text in graphics


  56. Install the engine lifting device.
  57. Remove the engine from the engine overhaul stand KM-412.

    58. J3B11CN8
    Display graphicTranslations of text in graphics


  58. Install a new crankshaft rear oil seal using the installer J-36792 or KM-635.

    59. J3B11CN9
    Display graphicTranslations of text in graphics


  59. Install the flywheel or the flexible plate.
  60. Install the flywheel or the flexible plate bolts.

    61. Tighten
    Tighten the flywheel bolts to 35 N•m (25 lb-ft). Use the angular torque gauge KM-470-B to tighten the flywheel bolts another 30 degrees plus 15 degrees. If the vehicle is equipped with an automatic transaxle, tighten the flexible plate bolts to 45 N•m (33 lb-ft).

  61. Install the engine. Refer to "Engine" in this section.

J3B11CN1
Display graphicTranslations of text in graphics


Crankshaft Bearings and Connecting Rod Bearings - Gauging Plastic

Tools Required

KM-470-B Angular Torque Gauge

Inspection Procedure - Crankshaft

  1. Coat the crankshaft bearings with engine oil.
  2. Install the upper crankshaft bearings into the engine block crankshaft journals.
  3. Install the lower crankshaft bearings into the crankshaft bearing caps.

  4. Install the crankshaft.
  5. Inspect the crankshaft end play with the crankshaft bearings installed.
  6. Check for permissible crankshaft end play. Refer to "Engine Specifications" in this section.

    7. J3B11CN2
    Display graphicTranslations of text in graphics


  7. With the crankshaft mounted on the front and rear crankshaft bearings, check the middle crankshaft journal for permissible out-of-round (runout). Refer to "Engine Specifications" in this section.

    8. J3B11CN3
    Display graphicTranslations of text in graphics


    Notice : Grease the crankshaft journals and lubricate the crankshaft bearings slightly so that the plastic gauging thread does not tear when the crankshaft bearing caps are removed.

  8. Inspect all of the crankshaft bearing clearances using a commercially available plastic gauging (ductile plastic threads).
  9. Cut the plastic gauging threads to the length of the bearing width. Lay them axially between the crankshaft journals and the crankshaft bearings.

    10. J3B11CN5
    Display graphicTranslations of text in graphics


  10. Install the crankshaft bearing caps.
  11. Install the crankshaft bearing cap bolts.

    12. Tighten
    Tighten the crankshaft bearing cap bolts to 50 N•m (37 lb-ft). Using the angular torque gauge KM-470-B, tighten the crankshaft bearing cap bolts 45 degrees plus 15 degrees.


    J3B11CN4
    Display graphicTranslations of text in graphics


  12. Remove the crankshaft bearing caps.
  13. Measure the width of the flattened plastic thread of the plastic gauging using a ruler. (Plastic gauging is available for different tolerance ranges.)
  14. Inspect the bearing clearances for permissible tolerance ranges. Refer to "Engine Specifications" in this section.

J3B11CN3
Display graphicTranslations of text in graphics


Inspection Procedure - Connecting Rods

  1. Coat the connecting rod bearings with engine oil.
  2. Install the upper connecting rod bearings into the connecting rod journals.
  3. Install the lower connecting rod bearings into the connecting rod bearing caps.

    4. Notice : Grease the connecting rod journals and lubricate the connecting rod bearings slightly so that the plastic gauging thread does not tear when the connecting rod bearing caps are removed.

  4. Inspect all of the connecting rod bearing clearances using a commercially available plastic gauging (ductile plastic threads).

    5. J3B11CJ9
    Display graphicTranslations of text in graphics


  5. Cut the plastic gauging threads to the length of the bearing width. Lay them axially between the connecting rod journals and the connecting rod bearings.
  6. Install the connecting rod bearing caps.
  7. Install the connecting rod bearing cap bolts.

    8. Tighten
    Tighten the connecting rod bearing cap bolts to 25 N•m (18 lb-ft). Using the angular torque gauge KM-470-B, tighten the connecting rod bearing cap bolts another 30 degrees plus 15 degrees.


    J3B11CN4
    Display graphicTranslations of text in graphics


  8. Remove the connecting rod bearing caps.
  9. Measure the width of the flattened plastic thread of the plastic gauging using a ruler. (Plastic gauging is available for different tolerance ranges.)
  10. Inspect the bearing clearance for permissible tolerance ranges. Refer to "Engine Specifications" in this section.


To Previous Page To Next Page
© Copyright General Motors Chevrolet Europe. All rights reserved