Spongy brakes

Discussion and technical advice the SW20 MR2. 3S-GTE, 3S-GE, 3S-FE etc
Anything and everything to do with maintenance, modifications and electrical is in here for the Mk2.

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easty-5
Posts: 549
Joined: Mon Sep 14, 2009 10:55 pm
Location: Aberdeen, Scotland

Spongy brakes

Post by easty-5 »

I have had this problem a while now so thought I best tackle it. My brake setup is yellowstuff pads all round with standard disks, TRD braided lines all round, cusco cylinder stopper and Motul RBF 660 race fluid. Cars a rev 3 tubby with no ABS. Brakes used to be Okay, untill I tracked the car for the first time. They faded reasonably quick, but I could still lock the brakes up but I wasn't far away from having my foot right down.

Basically brakes have been spongy ever since. I have put new yellowstuff pads on all round and it hasn't made any difference. When I pump
the brake pedal with the engine off the pedal goes solid. When I turn the engine on, I can pump the pedal quite far down, too far down IMO.

Is this normal? What checks can I carry out?
foxy-stoat
Posts: 2072
Joined: Mon Jun 27, 2005 4:44 pm
Location: Hellingly, East Sussex

Re: Spongy brakes

Post by foxy-stoat »

You could of boiled the brake fluid. If its black then it might be worth changing it.
We ALL make mistakes !!! :)
easty-5
Posts: 549
Joined: Mon Sep 14, 2009 10:55 pm
Location: Aberdeen, Scotland

Re: Spongy brakes

Post by easty-5 »

Nah, it's still p1$$ coloured/
Darth
Posts: 43
Joined: Thu Jan 14, 2010 12:44 am
Location: Aberdeen

Re: Spongy brakes

Post by Darth »

Have you tried bleeding them again?
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