Title: (Optional) Evaluate valve clearance.
Course: Small Engine Repair (20110-18) > Section: Servicing Valves on Four-Stroke Engines

Evaluation should include

- measurement and/or adjustment of clearance using feeler gauges, according to manufacturer’s specifications
- valve guide clearance.

Process/Skill Questions:

- Where would one look in the manual to determine the valve clearance?
- How does improper valve clearance affect engine performance?