yep, all running sweet again, dis had split open on the under side, the iron core was badly rusted. Those that said so at the start of this thread where spot on.
another dis fitted.
In addition we had buggered leads, the car has had oil in well issues before this obviously had buggered the rubber which practically fell apart. Second hand genuine leads fitted.
The breathers where partially blocked. Cleaned those out.
No vac system to multi rams. New vac tank and a new piece of pipe and both multi rams are working fine with a good blip.
Car now running fine.
Just to confirm to 2a.m. The car is fine and definately worth keeping on top of the maintenance, it will then serve you well and is the cheapest way to keep you mobile.
Anyway, happy migging Andy, and thanks to all who helped with this issue. Oof at its best.