Recently, I performed my own front wheel alignment. I struggled setting the camber on my right front wheel until I realized the eccentric washer was no longer turning with the eccentric camber bolt, located in the top position on the strut-to-spindle connection.
This meant as I turned the eccentric bolt to adjust camber, the eccentric washer didn't turn with it. That limited the amount of adjustability depending on where the eccentric washer happened to be sitting.
Those bolts are M12x1.5mm grade 10 and are torqued pretty high at 74 ftꞏlbs. Mine would have been out in 2014 when I had the struts rebuilt.
I had a difficult time getting the nuts loose. In the process, looks like the eccentric washer stayed put and I spun the eccentric bolt enough to cut some threads into the flat portion of the eccentric washer opening. (A bit of blue shop rag appears in the bottom photo, snagged on the "threads".)
I'm sure the eccentric bolt/washer are available from Porsche, but I didn't want to wait a week for one d*mn part to arrive. Instead, I zapped a bit of filler material with my MIG welder and used a small hand file to reshape the flat on the eccentric washer. Worked just fine.
