[Peter Zimmermann]

The "book" aka Spec book, can be sketchy on that 12mm bolt's spec, but I had the distinct advantage, in 1975 as a P-car dealer tech, to attend multiple Porsche factory tech seminars in Culver City, CA. That is where I learned to use 9 kpm, kilopondmeter, (9 x 7.23 = 65 lb/ft) - which, co-incidentally, is the same spec for the 8.8 grade, 12mm x 1.5 thread bolts that hold the aux. front carrier to the body. Easy to remember! Used that spec for thirty years, never had one come loose, never bent an engine mount "spear" during dis-assembly!