Try our re-instated info resource - "Aladdin's Cave" (Main menu)- sorry it's taken so long to fix
I had the exact opposite Ted, my fuel pipe turned to jelly and swelled so badly it fell off the fuel tap spigot when I took the clip off!
I would replace anything that has gone hard. Funny but the usual culprit with me is the carburettor overflow tubes.
For a premium price, he should wear a mask charging that much.