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Home >> Chevrolet >> 2010 >> Cobalt LS, 4D Sedan, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 17 (Cylinder Head) >> Valve, Spring, and Valve Seal Installation

Valve, Spring, and Valve Seal Installation

WARNING: This page is about a different car, the 2011 Honda Insight and 2010 Honda Insight. However, it is still accessible from the selected car via links, so may be relevant.

Special Tools Required 

  1. Coat the valve stems with new engine oil. Install the valves in the valve guides.
  2. Check that the valves move up and down smoothly.
  3. Install the spring seats on the cylinder head.
  4. Install the new valve seals (A) using the 5.5 mm side of the stem seal driver (B).
    NOTE: The exhaust valve seal (C) has a black spring (D), and the intake valve seal (E) has a white spring (F). They are not interchangeable.
    Fig 1: Identifying Exhaust And Intake Valve Seal
    G06428947
  5. Install the valve spring. Place the end of the valve spring with closely wound coils toward the cylinder head.
  6. Install the spring retainer.
  7. Install the valve spring compressor and the attachment. Compress the spring, and install the valve cotters.
    Fig 2: Compressing Valve Spring
    G06428948
  8. Remove the valve spring compressor and the attachment.
  9. Lightly tap the end of each valve stem two or three times with a plastic mallet (A) to ensure proper seating of the valve and the valve cotters. Tap the valve stem only along its axis so you do not bend the stem.
    NOTE: Be sure to raise the head off the work bench so the valve is not possibly damaged.
    Fig 3: Tapping Valve Stem
    G06428949