Crankshaft — Nissan Gravite
Category: Engine | Severity: high | Cost: ₹30,000–₹90,000
What is Crankshaft?
The crankshaft converts the linear motion of pistons into rotational motion to drive the vehicle.
How Crankshaft Works
Connected to pistons via rods, it rotates as pistons move during combustion cycles.
Why is Crankshaft Important?
Critical for transferring engine power to the drivetrain.
Common Problems
- Wear
- Bearing failure
- Cracks
- Misalignment
Symptoms
- Engine vibration
- Knocking noise
- Low oil pressure
Causes of Failure
- Poor lubrication
- High mileage
- Manufacturing defects
Impact on Car Performance
Failure leads to complete engine breakdown.
DIY Fix Guide — Step by Step
- Check oil levels
- Listen for unusual noises
- Monitor vibrations
- Get professional inspection
Maintenance Tips
- Use quality oil
- Regular oil changes
Replacement Cost in India
Estimated range: ₹30,000 – ₹90,000
Where to Buy Online
When to Replace Crankshaft
Replace if cracked, bent, or severely worn.