Weak brake servo

[LR5V]

If the pedal slowly sinks to the floor, it is failed master cylinder seal -so new master cylinder required.

[VW BUSH]

If the pedal slowly sinks to the floor, it is failed master cylinder seal -so new master cylinder required.

there you go

[WeekendMechanic]

I know but would a cheap master cylinder that I installed do the same thing is it just a coincidence?

[WeekendMechanic]

It's weird because I adjusted the handbrake cable's made it firm and the pedal feels a little firmer,brakes lock like I want to now when I press down I'm not 100 percent happy maybe 60 percent compared to other car brakes iv driven but the only other option is to shoot myself in the head or spend tones of cash replacing parts so I m going to opt for the other option and just be depressed.

[madmatty]

if the pedal feels harder after the cables are adjusted then it sounds like the drums are not adjusted up correctly.
ive done loads of derv conversions on t3's using mk3 engines and had a few with bad vac pumps take the vac line of and see how much is produced have had a few with cracks around the plastic outlet from the pump that does just what your discribing

[WeekendMechanic]

Thanks for all your suggestions but i`m just going to leave them the way they are