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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 >> Exhaust Side

Exhaust 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 camshaft. Ref. to REMOVAL , Camshaft.
  4. Remove the valve lifter.
  5. Measure the thickness of valve lifter using micrometer.
    Fig 1: Measuring Valve Lifter Thickness
    G10263910Courtesy of SUBARU OF AMERICA, INC.
  6. 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) - 0.35 mm (0.0138 in)
    S: Valve lifter thickness required
    V: Measured valve clearance
    T: Current valve lifter thickness
  7. Install the camshaft. Ref. to INSTALLATION , Camshaft.
  8. Install the cam sprocket. Ref. to INSTALLATION , Cam Sprocket.
  9. Install the timing chain assembly. Ref. to INSTALLATION , Timing Chain Assembly.
  10. 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): 

    0.35±0.05 mm (0.0138±0.0020 in) 

  11. 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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