Practice question

What is the correct method for measuring valve guide wear in a cylinder head?

  1. Measuring the thickness of the valve head margin.
  2. Using a dial indicator to measure side-to-side stem movement at a specified lift, or measuring valve-stem OD and valve-guide ID with the appropriate precision gauges.
  3. Weighing the valve on a digital scale.
  4. Inspecting the valve guide visually for rust.

Answer: B — Using a dial indicator to measure side-to-side stem movement at a specified lift, or measuring valve-stem OD and valve-guide ID with the appropriate precision gauges.

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