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Old 9 Aug 2009, 10:00 (Ref:2518303)   #1
Tim Falce
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Join Date: May 2003
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Very edge of S E London almost in Kent
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Head Gasket Failure. Possible Causes.

Following on from my small fire yesterday I removed the head to find the gasket has gone on No.6 cylinder (front of engine). As can be seen from the pictures there is quite a large piece missing.

I've never seen one go like this before and it would account for the masses of white smoke when it went.
Is this a usual type of failure and what may have caused it? I have had problems with the car running hot for the last couple of races so it could have been going for a while. There is also a couple of small stones sitting on top of the piston but no marks to the piston, bore or head so they may have fallen in as I removed the head or yesterday while I was checking things at Silverstone.
Engine is a 4.2 Jaguar XK lump.
Attached Images
File Type: jpg gasket1.jpg (242.4 KB, 8 views)
File Type: jpg gasket2.jpg (375.7 KB, 8 views)
File Type: jpg head1.jpg (183.9 KB, 16 views)
File Type: jpg piston1.jpg (272.2 KB, 13 views)
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