evening ,been having a few probs with my clutch the pedal keeps losing pressure pump it a few times and its ok,it only does this when you drive for long periods without useing it on the motorway,i have no fluid loss or leaks,so i tried changing the fluid and bleeding it just in case was ok for a day then started again my next thing to do is change the clutch master cylinder,i have a spare which ive taken of my scraped 2.2,what i need to know if anyone knows is where it comes out from the bulk head and runs across the bulk head before it goes in metal pipe there is a large round silver thing?? thats the only way i can discribe it, does anyone know what it is?what it does?the reason i ask is the rest of it is quick release fitting but if i change that as well iam a bit worried its been in that long i could damage the metal fluid line and give myself more problems.also have anyone else had this problem with the clutch on there vectra?if i change this and its still the same then its gearbox out and i really dont want to go down that road
thanks in advance paul