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

2.  crack repaired with L20 locks and C3A stitching pins

3.  L20 lock patterns drilled two inches on center

4.  completed repair: 2 men, 16 hours

Back to Metal Stitching Repairs

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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