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Adjust the valve lash as follows: ‪

  1. If adjustment is needed, unscrew the locknut. See Figure 42066 . Turn the adjusting screw until the valve lash is correct. Use the exact settings given in the "Adjust To" column listed in Table .

    1. Adjusting Screw ‪

    2. Locknut ‪

    Valve Lash Adjustment

    Note: When adjusting the valves, adjust to the exact setting. Use the range only for checking adjustment.

  2. Tighten the locknut 50 Nm (37 lbft).
  3. Check the valve lash again. Adjust again if necessary.
  4. Install the cylinder head covers. Refer to section .
  5. Remove the cranking tool (J 46167 or 407 589 00 63 00) from the inspection hole in the flywheel housing.
  6. Replace the end cover on the inspection hole and tighten the bolts 25 Nm (18 lbft).