Cooper S turbo blow into water jacket - MINI Cooper Forum

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post #1 of 1 (permalink) Old Jan 7th, 2014, 08:29 AM Thread Starter
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South Africa
South Africa Cooper S turbo blow into water jacket

My 2008 Cooper S seriously overheated, I have replaced all the damaged parts, she runs very well and idles perfectly. However under load (I assume when the turbo comes in) the filler tank cap sprays out steam. I suspect that the cylinder head gasket is damaged or the cylinder head may be cracked.

My question is should this not be evident even when idling?

If I remove the cylinder head, could it be warped from the overheating? How can I confirm this without removing it?

Any advise would be greatly appreciated.
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