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 Topic: Top piston blow-up 







Dave Ett
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Dave Ett » Tue Oct 11, 2005 4:27 am

I think that damage is detonation, caused by pre-ignition , caused by the cylinder getting too hot, caused by the lack of cooling around the head!

It is absolutely crucial to use a torque wrench. Over tightening can cause the head to warp - it's only soft alloy!

You were damn lucky by the sounds of it, so buy a new piston and a new tool to rebuild it with! Wink
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