Quote:
Originally Posted by suprxman
I'm no Porsche engine expert but .15mm is only .006 inches.Thats about 2 human hairs. Could that really make a difference?????
Come on Henry or other experts.
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The design flaw in the Porsche head nut is that if the stud height is too tall the stud will fill the Allen slot in the nut pushing the wrench out.
This quite often goes unnoticed if proper torque is achieved. The problem comes when you try to remove the nut many years down the road. With reduced wrench engagement, corrosion and the electrolysis caused by dissimilar metals removing the nut becomes near impossible.
That said, shorter (within reason) is better than longer.