Piston overhauling

Pistons are subjected to extreme temperatures and mechanical loads during engine operation. At Nicoverken, we specialize in the professional overhauling of pistons for marine and industrial diesel engines. Our piston overhaul services restore correct dimensions, function and reliability, ensuring optimal engine performance and extended component life.

Exchange base & stock availability

Where applicable, Nicoverken offers exchange or stock solutions for pistons to reduce engine downtime. Customers can return used pistons and receive reconditioned units that are ready for installation.

All exchange pistons are carefully inspected, reconditioned and prepared according to specification, providing a reliable and cost-effective alternative to new components.

Key benefits:

  • Reduced engine downtime
  • Cost-effective reuse of components
  • Pistons prepared for direct installation
  • Consistent and reliable quality
Step by step

What do we do when overhauling a piston

Our piston overhauling process is carried out using a structured and controlled approach. This process ensures pistons meet operational requirements and perform reliably under high load conditions.

1
Complete cleaning of pistons and components

The piston is thoroughly cleaned to remove carbon deposits, oil residue and other contaminants. This provides a clean surface for accurate inspection and measurement.

2
Visual inspection for cracks, wear and damage

Each piston is carefully inspected for cracks, excessive wear and other signs of damage. This helps determine whether the piston can be safely reconditioned or requires replacement.

3
Measurement of critical dimensions and tolerances

All critical dimensions are measured using precision equipment to ensure they comply with the manufacturer's specifications. Accurate measurements are essential for reliable engine performance.

4
Inspection of piston grooves and skirt condition

The piston ring grooves and piston skirt are inspected for wear and deformation. Proper groove dimensions and skirt condition are essential for correct piston ring operation and smooth movement within the cylinder liner.

5
Repair or reconditioning where possible

Where appropriate, worn areas are reconditioned to restore the piston to a serviceable condition. Components that cannot be restored within specification are replaced.

6
Final preparation for assembly and installation

Once all inspections and reconditioning have been completed, the piston is cleaned again and prepared for assembly. A final inspection ensures the piston is ready for reliable operation.

Quality control & testing

Quality control is an essential part of piston overhauling. Each piston is inspected to ensure compliance with required specifications before delivery.

Our quality checks include:

  • Dimensional verification
  • Visual inspection for defects
  • Final technical inspection

Only pistons that meet our quality standards are approved for reuse.

Applications

Our piston overhauling services are suitable for a wide range of applications, including:

Main engines
Auxiliary engines
Marine diesel engines
Generator sets
Indusrtial Power Unites

Why choose Nicoverken?

  • Precision honing using modern equipment
  • OEM-based specifications and tolerances
  • Experienced specialists in engine components
  • Reliable turnaround times
  • Consistent and repeatable quality
KEEP YOUR ENGINE OPERATIONAL

Nicoverken is your trusted service partner

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