GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2009 🢒 Aveo 🢒 Engine 🢒 Engine Mechanical - 1.2L 🢒 Valve Stem and Valve Guide Clearance Inspection

Valve Inspection Procedure

    Object Number: 2033830 Size: SH
  1. Inspect the valve for damage from the head to tip for the following conditions:
    2. • pitting in the valve seat area (1)
    • lack of valve margin (2)
    • bending in the valve stem (3)
    • pitting or excessive wear in the stem (4)
    • worn valve key grooves (5)
    • worn valve tip (6)
  2. Replace the valve if any of these conditions exist.

    3. Object Number: 2033831 Size: SH

    Note: Valve guide is not removable. Replace the cylinder head if it is out of specification.

  3. Measure the valve stem diameter (1) and valve guide inside diameter. If it is out of specification, replace it. Refer to Engine Mechanical Specifications.