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Home >> Subaru >> 2017 >> Legacy 2.5i Limited >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 7 (Engine Mechanical (H6DO)) >> Valve Clearance >> Adjustment >> Intake Side

Intake Side

WARNING: This page is about a different variant/trim than selected.
  1. Remove the engine from the vehicle. Ref. to REMOVAL , Engine Assembly.
  2. Measure all the valve clearances. Ref. to INSPECTION , Valve Clearance.
    NOTE: Record each valve clearance after measurement.
  3. Remove the timing chain assembly. Ref. to REMOVAL , Timing Chain Assembly.
  4. Remove the CAM sprocket. Ref. to REMOVAL , CAM Sprocket.
  5. Remove the camshaft. Ref. to REMOVAL , Camshaft.
  6. Remove the valve lifter.
  7. Measure the thickness of valve lifter using micrometer.
    Fig 1: Measuring Valve Lifter Thickness
    G10263910Courtesy of SUBARU OF AMERICA, INC.
  8. Select a valve lifter of suitable thickness using the measured valve clearance and valve lifter thickness, and install it.
    NOTE: Use a new valve lifter.
    S = (V + T) - 0.20 mm (0.0079 in)
    S: Valve lifter thickness required
    V: Measured valve clearance
    T: Current valve lifter thickness
  9. Install the camshaft. Ref. to INSTALLATION , Camshaft.
  10. Install the CAM sprocket. Ref. to INSTALLATION , CAM Sprocket.
  11. Install the timing chain assembly. Ref. to INSTALLATION , Timing Chain Assembly.
  12. Measure all valve clearance again at this time. If the valve clearance is not within the adjustment value, repeat the procedure from step  3.

    Valve clearance (adjustment value): 

    0.20+0.04 -0.06 mm (0.0079+0.0016 -0.0024 in) 

  13. After adjustment, install the related parts in the reverse order of removal.
    NOTE: Refer to "Camshaft" when installing the rocker cover. Ref. to INSTALLATION , Camshaft.
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