Quote:
Originally Posted by shadrach74
Got it. I agree with you. Though I cannot imagine any position that removes all valve spring tension from the cam. Is there a place to get detailed instructions that I might provide to my mechanic?
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TDC is the one spot in the rotation cycle where the cam followers (read lifters) are all on the heel side of the cam lobes, hence the reduction in valve spring pressures.
LN has published their written instructions, which while lacking color photos and the like, are more than enough for an experienced Porsche wrench to follow.
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