Practice question

While measuring piston-to-cylinder clearance during overhaul, which approach matches CTS measurement practice?

  1. Measure piston OD and cylinder bore with appropriate micrometre or bore tools and compare clearance with the service manual
  2. Estimate by eye without instruments
  3. Use only a tyre pressure gauge reading
  4. Rely solely on oil colour in the sight glass

Answer: A — Measure piston OD and cylinder bore with appropriate micrometre or bore tools and compare clearance with the service manual

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