K i hVe 96 ek ex with b18c swap i turn it on once a week nvr dtive it... wen i use to dtive car brakes were fine now they have to h pumped to work..i pump 5 times nd it holds dosnt sink so does that mean its not my master cylinder? Wat can it b ?

 

Id bleed the lines before changin the master cyclinder

check for leaks...
and check the fluid

 

Make sure you have enough fluid in your reservoir I still say its your master cylinder. Replace it they are not very expensive.

 

Ye in really thinkin the same cuz wat else cld it b