Hi Gramor
You are an absolute star. They are exactly what I need. Both mine were full of rust. I managed to clean one out without removing it, but had to try and remove the other one. As the fixing screws are completely rotten, the set screw snapped straight away. Silly me then sat the brass top in the vice and warmed it up to try and get the screw out. As soon as it got warm, the whole top distorted and that was the end of that.
Your burners will get my cooker full operational. 😀
pm sent.
Cheers Mick