Thank you John, for your time to give out free info.

I have a 68 VB that has a B&M separator plate and a small blocker rod behind the top shuttle valve, instead of a spring?
Any ideas why that is a what it does please?

Stay safe and keep well from Limey John

Carpe diem, quam minimum credula postero, thanx Horace!

There’s no point trying to fix stuff that ain’t broke,,, 'but if ain’t broke',,, you is not trying hard enough...