Connecting rod overhauling

Connecting rods transfer forces between the piston and crankshaft and are subjected to high mechanical loads during engine operation. At Nicoverken, we provide professional connecting rod overhauling for marine and industrial diesel engines. Our overhaul process focuses on restoring correct dimensions, bearing fit and alignment to support reliable engine operation.

Exchange base & stock availability

Depending on engine type and availability, Nicoverken can offer connecting rods from stock or explore exchange solutions to reduce engine downtime. Used connecting rods can be assessed for exchange with reconditioned units suitable for the intended application.

All connecting rods supplied are inspected and prepared according to the applicable specifications before delivery.

Key benefits:

  • Reduced engine downtime
  • Inspected and reconditioned components
  • Cost-effective alternative to new connecting rods
  • Correct fit for the intended engine application
Step by step

What do we do when overhauling a a connecting rod

Our connecting rod overhauling process follows a structured and controlled procedure, with the scope determined by the engine design and component condition. 

This process establishes whether the connecting rod is suitable for reuse and restores serviceable components within the applicable manufacturer limits.

1
Thorough cleaning of all components and lubrication passages
2
Visual inspection for wear, damage and signs of overheating
3
Crack detection using an appropriate non-destructive testing method
4
Measurement of big-end and small-end bore dimensions and roundness
5
Inspection of mating surfaces for fretting and damage
6
Verification of connecting rod alignment, including bending and twist
7
Inspection of connecting rod bolts and replacement according to manufacturer requirements

Quality control & testing

Quality control is an essential part of connecting rod overhauling. Each connecting rod is checked against the applicable specifications before approval for reuse.

Our quality checks include:

  • Verification of big-end and small-end bore dimensions and roundness
  • Alignment checks between the big-end and small-end bores
  • Inspection for crack indications
  • Inspection of mating surfaces and lubrication passages
  • Verification of bolt tightening according to manufacturer procedures
  • Final visual and technical inspection
  • Documentation of measurement results

Only connecting rods that meet the required acceptance criteria are approved for delivery or installation.

Applications

Our connecting rod 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?

  • Experienced specialists in marine and industrial engine components
  • OEM-based specifications and procedures
  • Precision measurement and reconditioning
  • Clear assessment of component condition and suitability for reuse
  • Reliable turnaround times
KEEP YOUR ENGINE OPERATIONAL

Nicoverken is your trusted service partner

Explore the vessel engine

Previous step

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.

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Next step

Crankshaft grinding

The crankshaft is one of the most critical components of a diesel and/ or natural gas engine, transferring power and ensuring smooth engine operation. At Nicoverken, we provide precision crankshaft grinding services for marine and industrial diesel and natural gas engines. Our grinding process restores correct dimensions, surface finish and alignment, ensuring reliable and safe engine performance.

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