Cracked Cylinder Block

Michael Clark

Subject: Cracked cylinder block
Date: Mon, 19 Aug 2002 23:59:26 +0100
From: "Michael Clark" <>
To: <jw[at]>

Dear John,

You will have seen in the forum my topic on ductile iron for cylinder blocks.
Here are pictures of a broken off frame lug and an intact lug after magnaflux crack testing which showed up a crack right along the angle of the lug. 

This is on my dry 20hp Model H engine - now repaired and running again.

crackedblock.jpg (20678 bytes) crackedblock2.jpg (29372 bytes)

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