Valve Springs — Nissan Gravite
Category: Engine | Severity: high | Cost: ₹4,000–₹12,000
What is Valve Springs?
Valve springs ensure that engine valves close properly after being opened by the camshaft.
How Valve Springs Works
They compress when the camshaft opens the valve and expand to close it tightly.
Why is Valve Springs Important?
Maintains proper valve sealing and prevents engine misfires.
Common Problems
- Weak tension
- Breakage
- Fatigue
Symptoms
- Engine misfire
- Ticking noise
- Loss of power
Causes of Failure
- Wear over time
- High RPM stress
- Poor material quality
Impact on Car Performance
Weak springs can cause valve float, reducing performance and damaging the engine.
DIY Fix Guide — Step by Step
- Listen for unusual valve noise
- Check engine performance
- Inspect valve train (professional)
- Replace worn springs
Maintenance Tips
- Avoid over-revving
- Regular servicing
Replacement Cost in India
Estimated range: ₹4,000 – ₹12,000
Where to Buy Online
When to Replace Valve Springs
Replace when weakened or broken.