Brakes woes

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Anbele
Posts: 179
Joined: Fri May 21, 2021 8:36 pm
Your car is a: 1979 Spider 2000 CS2

Brakes woes

Post by Anbele »

Just finished a complete redo of the suspension and brakes system—only thing not replaced on the brakes was the booster, steel lines and the compensator valve. Everything else is brand new: master cylinder, calipers, rotors, brakes hoses, compensator linkage and hand brake cable. Although I spent quite an amount of time vacuum and gravity bleeding the system—I expected that since it was completely empty it was going to take a long time to get the air all out. But apparently, I did not spend enough on it cuz my brakes are still feeling a bit spongy I think. Since I bought the car about a year ago, I don’t have a good reference point. I feel the brakes feel the same as before…a bit spongy. Is this the “real” feeling? Or should I feel them short and hard when I press the pedal?
Nut124
Posts: 748
Joined: Wed Oct 25, 2017 6:39 pm
Your car is a: 1978 124 Spider 1800

Re: Brakes woes

Post by Nut124 »

The brakes will never be like modern power brakes.

Can you lock them up by stepping on them hard? If not, then air is possible or likely.
davidbruce
Patron 2020
Patron 2020
Posts: 239
Joined: Tue Jan 05, 2016 2:01 am
Your car is a: 1980 Spider 2000

Re: Brakes woes

Post by davidbruce »

As Nut said you should be able to lock the fronts. If the compensator is adjusted and working properly it should block the flow to the rears when the fronts lock. With the engine running. If you pump the brakes hard and fast, does the pedal firm up and rise slightly. If so that''s a sure sign of air in the system. I'm sure you bled the brakes with the axle supported. Did you check that the compensator piston moves freely?
Dave Kelly
Campbell River B.C.
1973 Sport(sold)
1980 Spider 2000(project, aren't they all)
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