So, I'm looking for someone in the SE who I can bring my BX over to (within a reasonable distance from Guildford), who owns these things that I lack, in order to do an accumulator swap and ball-valve re-seating:
Jack
Axle stands
Brass punch + small hammer.
It could well be that it's the non-return valve alone that's causing the c. 5 seconds tick time... but I've got a new sphere anyway just in case.
Weekday evenings are best at the moment - I'm away next weekend and the weekend after! I finish work in Teddington at 5:30 of an evening.
Please PM me if you can help. I can provide beer tokens, but cash is v. tight at the moment, hence I'm not taking it to a garage!
Cheers!
Mark.