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Engine Mechanical - Mechanism & Function (H4SO): Overhaul Subaru Forester SG facelift

Mechanical 1 illustration

Valve Rocker Assembly

  1. The intake valve rocker arms and the exhaust valve rocker arms are installed on their own rocker shafts both of which are retained by the camshaft caps.
  2. The valve end of each rocker arm is provided with valve rocker adjusting screw and nut. Turning of this screw adjusts the valve clearance.
  3. The exhaust valve rocker arms are Y-shaped, and each arm operates two exhaust valves simultaneously.
  4. Each rocker shaft has an oil passage in it.

Scheme 2

Scheme 2
Scheme 2

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