Mike, guys, pls ... my sense of humour
This is the best,
almost real time resource, I have ever experienced.
I am for ever indebted to your collective wisdom and your response times.
So this is sorted!
Now for the bad news. As usual I have misled you

.
What I am looking for, is the underside of a rack which uses the TWO OVERFLOW JOINTS, not one as my 79, and, judging from your pics Mike, not one from the 80 either.
Maybe, the two overflow joints solution was adopted by Honda at a later time.
It is clearly referred to as an 'A' model in my
European parts list, see attached.
twin overflow joint.jpg
.
Clearly I am looking for the topology around items '20' (two of them).
Thanks, Aris
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