Camshaft
A camshaft is a crucial engine part that controls how an engine breathes by managing the opening and closing of valves. Think of it like a conductor in an orchestra, coordinating when fuel and air enter the engine and when exhaust gases leave. Auto mechanics work with camshafts during engine repairs, maintenance, and performance upgrades. When reviewing resumes in automotive repair, you might see terms like "OHC" (overhead camshaft) or "DOHC" (dual overhead camshaft) mentioned alongside camshaft experience.
Examples in Resumes
Performed complete engine overhauls including Camshaft replacement and timing adjustments
Diagnosed and repaired Cam timing issues on various vehicle makes and models
Specialized in performance Camshaft installations and engine modifications
Typical job title: "Automotive Technicians"
Also try searching for:
Where to Find Automotive Technicians
Professional Organizations
Online Communities
Job Resources
Example Interview Questions
Senior Level Questions
Q: How would you diagnose a camshaft-related engine performance issue?
Expected Answer: A senior technician should explain the systematic approach: checking engine codes, listening for unusual noises, performing compression tests, and using diagnostic tools to check cam timing. They should mention checking oil pressure and examining wear patterns.
Q: What considerations do you take into account when selecting a replacement camshaft?
Expected Answer: Should discuss matching engine specifications, understanding customer needs (daily driver vs. performance), compatibility with existing components, and proper break-in procedures.
Mid Level Questions
Q: Explain the relationship between camshaft timing and engine performance.
Expected Answer: Should explain how cam timing affects power output, fuel efficiency, and emissions in simple terms, and demonstrate knowledge of timing belt/chain maintenance intervals.
Q: What are the signs of a failing camshaft?
Expected Answer: Should mention common symptoms like ticking noises, poor performance, failed emissions tests, check engine lights, and rough idle, along with proper diagnostic steps.
Junior Level Questions
Q: What is a camshaft and what does it do in an engine?
Expected Answer: Should be able to explain that a camshaft controls valve operation for engine breathing, describing basic function and location in the engine.
Q: What basic maintenance is related to the camshaft?
Expected Answer: Should discuss timing belt/chain service intervals, oil change importance, and basic visual inspections during routine maintenance.
Experience Level Indicators
Junior (0-2 years)
- Basic engine maintenance
- Timing belt/chain replacement
- Basic diagnostic tool usage
- Oil change procedures
Mid (2-5 years)
- Complete engine tear-down and rebuild
- Advanced diagnostic capabilities
- Timing system repairs
- Performance modifications
Senior (5+ years)
- Complex engine diagnostics
- Performance engine building
- Team leadership and training
- Advanced troubleshooting
Red Flags to Watch For
- No hands-on engine repair experience
- Unfamiliar with timing systems
- Lack of diagnostic equipment knowledge
- No understanding of engine mechanical principles
