I have just got this Heritage and I came across this when I started to strip it down... There is no black tube inside, just this cloth like thing... Is this something they did or a bodge someone has done? I've only ever seen the usual black tubes...
[ATTACH=full]97020[/ATTACH]
[ATTACH=full]97021[/ATTACH]
[ATTACH=full]97022[/ATTACH]
[ATTACH=full]97023[/ATTACH]