Cylinder Liner Reconditioning

High-Precision Honing & Surface Restoration to OEM Specifications

Cylinder liners are critical for sealing and cooling in 4-stroke marine engines. Over time, scuffing, out-of-roundness, and loss of the honing pattern lead to reduced efficiency, increased oil consumption, and accelerated wear.

At KIMI, we provide advanced cylinder liner reconditioning and precision honing, restoring surface geometry and achieving OEM-grade crosshatch patterns essential for lubrication and ring sealing. Our capabilities include liner honing up to 1,000 mm in diameter, with strict control of surface roughness and dimensional tolerances.

The result is improved performance, reduced friction and oil consumption, and reliable long-term engine operation in full compliance with OEM specifications.

Precision honing of 4-stroke cylinder liner restoring OEM crosshatch pattern at KIMI
Precision honing through dedicated machinery restores OEM crosshatch pattern, ensuring controlled oil retention and proper lubrication conditions.
Final NDT inspection of 4-stroke cylinder liners at KIMI workshop
Final NDT inspection of 4-stroke cylinder liners prior to delivery for instalation.
4-stroke cylinder liners after overhauling process at KIMI workshop
4-stroke cylinder liners after complete overhauling and precision reconditioning processes.
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4STROKE_cylinder liner_honing_automated_machine_restoring_honing_pattern
Precision honing of 4-stroke cylinder liner restoring OEM crosshatch pattern at KIMI
Final NDT inspection of 4-stroke cylinder liners at KIMI workshop
4-stroke cylinder liners after overhauling process at KIMI workshop

Customer Benefits:

<h3>Reduced Maintenance Downtime</h3>

Reduced Maintenance Downtime

<h3>Cost-Effective Liner Restoration</h3>

Cost-Effective Liner Restoration

<h3>Improved Lubrication & Engine Efficiency</h3>

Improved Lubrication & Engine Efficiency

Reconditioning & Honing Process

01

COMPREHENSIVE LINER INSPECTION

Dimensional inspection and condition evaluation of liner geometry, including wear, ovality, taper, and scuffing

02

NDT INSPECTION

PCN Level II personnel perform NDT inspection (MPI / DPI / UT as applicable) to detect cracks and discontinuities

03

PRECISION GRINDING OF LINER SURFACES

Controlled grinding restores liner geometry within OEM tolerances, eliminating ovality and taper

04

RESTORATION OF OEM CROSSHATCH PATTERN

Precision honing restores OEM crosshatch geometry ensuring controlled oil retention and proper lubrication

05

FINAL OEM-COMPLIANT INSPECTION & REPORTING

PCN Level II personnel perform final dimensional and NDT verification ensuring OEM compliance and full traceability through reporting

Read the Most Frequently Asked Questions

Why Rely on KIMI

High-precision liner machining with controlled honing quality and verified surface finish accuracy
2,5K
+

Cylinder Liners Reconditioned

Ø500×1,500

Honing Capacity

0,4
Ra

Honing Surface Finish Achieved

Beyond Conventional Marine Engine Repairs

We Restore What Others Replace
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FAQs

The process includes inspection, NDT testing, precision grinding (if required), and honing to restore the liner’s surface finish and geometry. A final inspection ensures full compliance with OEM specifications.

Honing restores the OEM crosshatch pattern, which is essential for proper lubrication, reduced friction, and efficient sealing between piston rings and the liner.

KIMI uses advanced honing and grinding equipment to achieve a high-accuracy surface finish (up to 0.4 Ra). All liners undergo detailed inspection, NDT testing, and final dimensional verification to meet OEM standards.