Spongy Brakes
 

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?

Re: Spongy Brakes
 

a donkey

Re: Spongy Brakes
 

As long as there's no leaks and no cracked/bulging rubber lines, I would suspect the master cylinder.

Re: Spongy Brakes
 

Probably a MC is their isnt any leaks.

Re: Spongy Brakes
 

???

Bled properly?

Re: Spongy Brakes
 

If you bled it correctly and your lines are in good shape then your master cylinder is most likely the problem.

Re: Spongy Brakes
 

disc all around or disc/drum? make sure the pads aren't hanging in the pad carrier (file the edges of the carrier AND pad down until it moves on its own with your hand, with minimal effort, then high temp anti-seize the contact points. same with that little tab on the shoe that acts as a slider on the backing plate. it's a cheap easy to do job, and if you still have a spongy pedal its your master cyl, but at least you know your brakes wont hang up

Re: Spongy Brakes
 

He said wheel cylinders

Re: Spongy Brakes
 

Honestly your brakes aren't going to be that "spongy" if your master cylinder is leaking past the seals internally.

If that's happening it's more like a gradual loss of braking, low engagement, or a generally shitty pedal feel, i.e. doesn't give much feed back because the hydraulic fluid isn't compressing evenly.

Spongy brakes is going to be air in the system. Period.

Re: Spongy Brakes
 

I'd say you did not bleed correctly.

Re: Spongy Brakes
 

Trust me, a bad master cylinder can definitely cause spongy brakes.

Re: Spongy Brakes
 

I AGREE WITH HIM I DID MY brakes (4 wheel disc brakes)bleed them the way the honda shop manual said to starting from the passenger rear.and my brakes are still kinda spongy also.ive tried everything to get it fixed but my m/c is shot does autozone make a rebuild kit for the m/c

Re: Spongy Brakes
 

Id buy a used OEM one before a Auto zone one :X

Re: Spongy Brakes
 

I've gotten a few years out of a parts store MC before. I wanted a Honda one, but new they're really pricey, and from the junkyard, who knows how long it'll last. :( Just don't expect it to last as long as the OEM one, probably half as long. I know my parts store clutch MC started leaking two years after it was installed.

Re: Spongy Brakes
 

it's a general service procedure. doesn't matter, it applies to both

Re: Spongy Brakes
 

Not my point. You asked if he had 4 wheel discs, he already mentioned replacing wheel cylinders which means he has drums in back.