Please let me know how you get on making new leather cup.I am thinking of making my own seals .I have a leather sewing machine + an old leather belt with thick leather + and have glue .
making the opening in one layer or two layers leather -- and no hole in the upper one.
I think i will try that since this can happen in the future also.
How it looks can be seen 7 o clock post #30
Can work making a leather seal cup. No quick fix.
Think I'll follow Marty's suggestion - dismantle and soak with oil. But while I'm at it, try to measure the cup. I don't trust meself to make accurate measurements but in this case that hardly applies - more sort of, use a plastic ruler and eye up the messy scrap of leather. The dimensions might give me more to go on if a purchase becomes necessary - there's a bloke on UK ebay sells various sizes of leather cup for bicycle pumps etcetera.
But I'd prefer to avoid having to buy stuff - apart from the meths, which will be a useful addition to the products cupboard in any case. No, deffo won't drink it!
Jan - it's great that you are forging ahead with your blow torches - hopefully, you will find the problems before me and come up with the solutions.
Referring back to post #35, this is the twisted wire thingy that was inside the main fuel pipe.
Does it look important? The thick part, rolled up brass gauze, was pushed up almost to the burner jet. Function - to prevent Explosion?
It's a very tight fit so won't be easy to push it back in . . .