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Author Topic: Common Block & Head Failure Points  (Read 2159 times)

DipStick

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Common Block & Head Failure Points
« on: October 27, 2007, 01:39:48 PM »
Just tore down an overheated m42 out of my junk-yard car.  The HG was blown, and I was really expecting to see either the block or the head cracked, but I cannot find anything.  Are there particular areas where this head and block tend to crack due to overheating?  Any insight will be appreciated!

Paul
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D. Clay

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Common Block & Head Failure Points
« Reply #1 on: October 27, 2007, 02:01:54 PM »
Obvious place is usually around exhaust ports.
Thread on cylinder cracks:
http://www.m42club.com/forums/showthread.php?t=3427&highlight=head
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Shocker

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Common Block & Head Failure Points
« Reply #2 on: October 28, 2007, 12:06:19 AM »
The head might have just warped and not cracked.
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