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Metal Stitching Stitching Products Services Training Technical Support Cast Iron Welding Repair Examples Special Repairs Spark Plug Thread Repair Inserts ArticlesCooper Bessemer Engine

 

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1. 18" crack in lower crank case casting near main bearing bore 

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2.  crack repaired with L20 locks and C3A stitching pins

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3.  L20 lock patterns drilled two inches on center

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4.  completed repair: 2 men, 16 hours

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Here are links to some of our videos on YouTube.

YouTube, Full-Torque Permanent Thread Repair
YouTube, Full-Torque Permanent Thread Replacement Insert
YouTube, Cast Iron Crack Repair
YouTube, Lock Installation on Crack Repair

 
Here are some links to articles in industry-related professional publications:
Engine Professional, January-March 2010 Issue
Engine Builder, What's Hot in Cold Crak Repairs!
Engine Builder, Learning Curve
Engine Builder, The Properties of Cast Iron
Engine Builder, Pinning Down the Cold Repair Process

 

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