fairladyME Posted July 3, 2016 Share Posted July 3, 2016 (edited) I'm in the process of tearing down my VG33 for a turbo project and as I was involving the drivers side cam I noticed the area of the head by the rear of the cam had a hole in it. It looks like something wore through but there's nothing back there and the cam, washer and bolt had absolutely no damage. I'm assuming this was an irregularity in the head casting. Any input? Edited July 3, 2016 by fairladyME Quote Link to comment Share on other sites More sharing options...
NewZed Posted July 3, 2016 Share Posted July 3, 2016 DEREK probably knows for sure but it looks like a core shifted during casting. The machining operation broke through and the QA department probably had to give it pass to let it through. Just a guess. Quote Link to comment Share on other sites More sharing options...
fairladyME Posted July 3, 2016 Author Share Posted July 3, 2016 That's what I figured. If it's from the factory and had 124,000 on it, I'm not too worried about using it. I'd just rather replace the head now if it's screaming "danger" to somebody. Quote Link to comment Share on other sites More sharing options...
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