Originally Posted by
pss
hi 21 window, txs for yr input.
the circular floor indents are shown in earlier post as well as last post from Milou. Small knob engine deck release is shown in a post from milou just above as a pic from 1666, I would imaging you have that. Can you pls check?
There is a nice pic of the strengthened valve cover in milous post. Now the thin ones starting 1964 are slightly different especially around the screws. You clearly see on Milous pic that the area around the screws is as high as the ribs. In earlier model that area is as thin as the main plain. Also the outer ribs are as thin as the others for the early version, whereas in Milous pic you see these are thicker. The reason being the bad oilleaks due to the wrap of the cover when tightening. It helped but did not completely solve the problem. That was only later when the 6 screw version was replaced by the 11 screw type, and even then, as people replace these for turbo versions for the 964 for example.