Thanks for your tips.
After a 3rd attempt I just took the pipe out again. At least I am now well trained in changing e the coolant.... (which is easY with nice with thw new radiator from sifab)

It is a stupid problem that I didn't realise straight away. The new clamps that come with the Roose hose kit are quite solid. On the bench it is easy to see that they lovelap the cute tiny olives on the pipe.

None of the spare clamps I have fit perfectly - my initial thought was also to get these ends extended - i will follow your advise and have new olives soldered onto the pipe ends.

Unfortunately this means I won't be able to do another test drive this weekend.... If only the pubs would br open again...
Thanks
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Tim
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1984 Morgan 4/4 fourseater