Metal Stitching & Machining Repair of Cast Iron Diesel Generator

Step by Step Report Presentation (PDF - 4.72 MB)

El Salvador’s Nejapa Power identified damage in the cast iron engine block of their Wartsila diesel generator. The damage included holes into the coolant jacket, air box, lower liner bore, and cam box. At LOCK-N-STITCH Inc. we have the capability to repair large engines utilizing our metal stitching technology, onsite. The damaged section of the V18 cylinder engine was removed and new sections of cast gray iron patches were fabricated and installed utilizing Castmaster® stitching pins for the air box, lower bore, and cam side repair.

This offsite repair required the use of boring and milling machines, metal stitching tools, and liquid nitrogen which was used to press in the new bore sleeve.

Upon completion of the cast iron repair the Wartsila diesel generator was returned to factory specifications, and completed in just 4 weeks. This project exemplifies our ability to go anywhere in the world to provide cast iron repair.

To learn more about this project, see the table below or contact us directly.

BEFORE: Connection Rod
Damage at Nejapa Power

AFTER: Repair after
Machining & Stitching

Full-Torque Products Used:

• Thread Repair Inserts
• Plugs & Pipe Thread Inserts

Crack Repair Tools Used:

• Stitching Pins
• Locks

Highlights of the Metal Stitching & Machining Repair Project

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