Quote:
Originally Posted by muckypuppy
Look into upgrading your heads and/or upgrading springs and valves. My 2013 BRZ did the same during January 2014 while still n/a. The feedback from Subaru was that it was due to the design of the roller rocker retaining pins and that they are liable to work loose, which is what happened to mine sending a valve into my engine bay. I was talking to the Subaru Master Tech who rebuilt mine and he said that he shimmed my springs to make them stiffer. He also mentioned that in the last couple of years he has seen at least another 5 with the same issue while working at my local dealership, but not to the same extent as mine lol. Pretty sure this explains changes to the valves and springs and other slight changes to head designs over consecutive model years. Mine was an April 2013 build.
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That was my original thought with the heads. I still don't how messed up my motor is. I haven't check for metal shavings or anything yet. Will probably get motor out next weekend and see. Im assuming have the old rockers in mine. I wish it happened before I was modded.