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Valve Clearance Inspection: I35

  1. Valve clearance check must be done while engine is cold. Remove ornament cover.
  2. Remove air duct with air cleaner case, collectors, hoses wires, harnesses connectors and so on.
  3. Remove intake manifold collectors. Remove ignition coils and spark plugs.
  4. Remove right and left rocker covers.
  5. Set cylinder No. 1 at TDC on its compression stroke. See Fig 1.
  6. Align pointer with TDC mark on crankshaft pulley.
  7. Check that valve lifters on cylinder No. 1 are loose and valve lifters are No. 4 are tight. If not, turn crankshaft one revolution (360 degrees) and align accordingly. See Fig 2.
  8. Check the valve listed. See Fig 1.
    9. NOTE: Record any valve clearance measurements which are out of specifications. Information will be used later to determine the required replacement valve lifter.
  9. User a feeler gauge, measure clearance between valve lifter and camshaft. For specifications, see VALVE CLEARANCE SPECIFICATIONS .
  10. Turn crankshaft 240 degrees and align properly. See Fig 2.
  11. Set cylinder No. 3 at TDC on its compression stroke. Check valves listed. See Fig 3.
  12. Turn crankshaft 240 degrees and align properly. See Fig 2.
  13. Set cylinder No. 5 at TDC on its compression stroke. Check valves listed. See Fig 4.
  14. If valves are out of specification, adjust the clearances. See VALVE CLEARANCE ADJUSTMENT . If all valve clearances are within specification, install the following parts:
    • Intake manifold collectors.
    • Right and left rocker covers.
    • All spark plugs.
    • All ignition coils.
Fig 1: Setting Cylinder No. 1 At TDC (I35)
G00220081Courtesy of NISSAN MOTOR CO., U.S.A.
Fig 2: Identifying Camshaft Lobe Position At TDC (I35 & QX4)
G00220080Courtesy of NISSAN MOTOR CO., U.S.A.
Fig 3: Setting Cylinder No. 3 At TDC (I35)
G00220082Courtesy of NISSAN MOTOR CO., U.S.A.
Fig 4: Setting Cylinder No. 5 At TDC (I35)
G00220083Courtesy of NISSAN MOTOR CO., U.S.A.
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