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Old 07-03-2012, 11:09 AM   #54
Mango
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Join Date: Mar 2006
Location: Southern California
Posts: 23,226
My Ride: M54B30
OP, all you have to do is take a ruler or flat piece of glass and run it along the flat portion of the valve cover (emphasis at the front as this is where the warping typically happens) your front corner where it meets the vanos will be wavy and lifted up. If you see any gaps or light poking through, you'll know its warped. I'll try to upload my pic by lunch.
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