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Valve Adjustment: 3.0L

NOTE: Record each valve clearance after it has been measured.
  1. Measure all valve clearances.
    2. NOTE: When setting, be careful shim replacer edge does not touch shim.
  2. Remove shim from valve lifter: Prepare special tool 18329AA000 shim replacer. See Fig 1 . Rotate the notch of the valve lifter outward by 45°. See Fig 2 . Adjust shim replacer notch to valve lifter and set it. See Fig 3 . Tighten bolt (A) and install it to the cylinder head. Tighten bolt (B) and insert the valve lifter. See Fig 4 . Insert tweezers into the notch of the valve lifter, and take the shim out. See Fig 5 . By using a magnet (A), the shim (B) can be taken out without dropping it. See Fig 6 .
  3. Measure thickness of shim with micrometer. See Fig 7 .
  4. Select a shim of suitable thickness using measured valve clearance and shim thickness. See Fig 8 .
  5. Set suitable shim selected in step 4 to valve lifter.
  6. 6) Inspect all valves for clearance again at this stage. If the valve clearance is not correct, repeat the procedure over again from the first step.
  7. After inspection, install the related parts in the reverse order of removal.
Fig 1: Identifying Shim Replacer
G00157480Courtesy of SUBARU OF AMERICA, INC.
Fig 2: Rotating Valve Lifter Notch (3.0L)
G00015150Courtesy of SUBARU OF AMERICA, INC.
Fig 3: Setting Shim Replacer Onto Valve Lifter
G00157481Courtesy of SUBARU OF AMERICA, INC.
Fig 4: Installing Shim Replacer Onto Cylinder Head
G00157482Courtesy of SUBARU OF AMERICA, INC.
Fig 5: Removing Lifter Shim With Tweezers
G00157483Courtesy of SUBARU OF AMERICA, INC.
Fig 6: Removing Lifter Shim With Magnet
G00157484Courtesy of SUBARU OF AMERICA, INC.
Fig 7: Measuring Shim Thickness With Micrometer
G00157485Courtesy of SUBARU OF AMERICA, INC.
Fig 8: Identifying Shim Thicknesses
G00166665Courtesy of SUBARU OF AMERICA, INC.
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