My 90 Civic has been stored for 5 years, took it out for a tear and the brakes are spongy as hell. I've flushed/bled the brake system, and replaced the rear wheel cylinders... My question is what should i try next, Master cylinder, calipers?

 

I would try the master cylinder next.

 

I went to the parts place and they don't sell a rebuild kit, does anyone know if/where i can get one online?

 

yea. look at the home page on HT. its a company called Statracing. replacement OEM parts. not bad prices either

 

Checked, they don't have rebuild kits, just new/reman units.

 

I'm not totally sure, but I don't think they make rebuild kits for aluminum master cylinders. I think just for the old school steel ones...

 

Can you really not afford $40 for a reman master?...rebuilding an old one hardly seems worth it, and the body is probably far too corroded anyway

 

And even if you could rebuild it, what if the whole problem was a scored cylinder bore? Just get the reman master cylinder. Can't really be much else unless you have some sort of leak in the system.

 

definitely check for leaks if you haven't already.

 

check the big vaccume line that goes from the brake booster to the intake manifold i had thise problem before and it was because that hose was clogged and thet gray valve in the hose was bad.

 

I just wanted to pick up rebuild kits for the Master cylinders and calipers, as the calipers are 68 each and the master cylinder was $80, i figured i'd just rebuild it all and eliminate those as possible problems, but it doesn't look like i'll get off that easy.

 

OH, as for the vac line going to the booster, i've got it tee'd off to go to my Vac manifold as well, could that hurt anything?

 

Turned out to be a pinhole in one of the lines going along the firewall from the prop valve to the M/C...Good thing i went and got a DA booster/MC today at the pick n pulll