Nissan 100NX N14 silhouetteN14

Valve Clearance - Adjusting (Cont'd)

EM-47prose procedure
Continued from EM-46

Adjusting (Cont'd)

  1. 3
    Rotate Tool (A) (See figure.) so that valve lifter is pushed down.
    Tool (A) inserted around the camshaft with an arrow showing the rotating direction so that the valve lifter is pushed down.
    SEM142D
  2. 4
    Place Tool (B) between camshaft and valve lifter to retain valve lifter.
    Tool (B) must be placed as close to camshaft bracket as possible.
    Be careful not to damage cam surface with Tool (B).
    Tool (A) and Tool (B) KV10115120 placed between camshaft and valve lifter to retain valve lifter.
    SEM143D
  3. 5
    Remove Tool (A).
  4. 6
    Remove adjusting shim using a small screwdriver and a magnetic finger.
    Removing adjusting shim using a magnetic finger. Tool (B) and a 'Magnetic finger' are called out.
    SEM144D
  5. 7
    Determine replacement adjusting shim size following formula. Using a micrometer determine thickness of removed shim. Calculate thickness of new adjusting shim so valve clearance comes within specified values. Select new shim with thickness as close as possible to calculated value.
    R = Thickness of removed shim
    N = Thickness of new shim
    M = Measured valve clearance
    Intake: N = R + [M - 0.37 mm (0.0146 in)]
    Exhaust: N = R + [M - 0.40 mm (0.0157 in)]
    Shims are available in 50 sizes from 2.00 mm (0.0787 in) to 2.98 mm (0.1173 in), in steps of 0.02 mm (0.0008 in).
    A micrometer being used by hand to measure thickness of the removed adjusting shim.
    SEM145D
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