Originally Posted by rw1968

I got one 2nd hand from ebay, which will be bolted on as soon as I get a couple of new gaskets.

However - I have also started to repair the old one - it might fall apart, but for the sake of 30 minutes with the brazing torch I might as well give it a try. I'll post up some photos of my attempt if you're interested - unless I **** it up and it looks rubbish. In which case I will just keep quiet.