Valve Clearance Adjustment

note
To adjust the valve clearances the camshafts must be removed. Follow the camshaft removal procedure.
  1. Remove the camshafts (see Camshaft - Removal).
  2. Remove the tappet bucket from the cylinder head.
  3. Remove the shim from the valve head.
    4. Remove tappet bucket cdrb

    1. Tappet bucket

    2. Shim

    note
    The shim may withdraw with the tappet bucket.
  4. Measure the original shim, using a micrometer and select the appropriate new shim as required.
    5. * Clearance too small: fit a thinner shim.
    * Clearance too large: fit a thicker shim.
    note
    Shims are available ranging from 1.70 mm to 3.00 mm in increments of 0.025 mm.
  5. Fit the new shim to the valve head.
  6. Lubricate the tappet bucket(s) with a 50/50 solution of engine oil and molybdenum disulphide grease.
  7. Refit the tappet bucket.
  8. Refit the camshafts (see Camshaft - Installation and Timing).
  9. Re-check all valve clearances.
  10. Repeat the procedure if the valves require further adjustment.
  11. Fit the camshaft cover (see Camshaft Cover - Installation).