Bruce, the Mk1 I had before had the copper tube follow the engine cover frome on the top right side out the back and down and simply dumped out the right of the two square holes by the differential. It didn't connect to a catch overflow can.
The old tubing was saved from that project (in two pieces) as reference, when I ran all new pipe when I restored the carrier. I intend to do the same on my current Mk1 project. (unless new information comes to light).
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