hi, i just picked up a mk2 85 1.6 golf n when you brake there is a hissing noise like air not fluid fron the master cylinder, if u stick ya head under the dash n brake with the engine runnin you can here it! also when u brake at idle the revs drop n it stools? i think itd the master cyilinder but there is no fluid loss? i have put a kink in the pipe fron t mainfold to the cylinder n the engine dose not cut out now but the brakes are crap n hard? the car has gti front disk n pads n a gti rear beam? if i do need to replace the master cyilider can i fit a gti one or would i need to replace th large black bell whish the sevrvo sits in, what is this by the way?
thanks for readin, any help would be grate!
