[Roadsters] Brake pedal soft

[Steve Jacobson]

Tim,
Sounds like it could be rotor runout.  If the rotors "wobble" they will push
the pistons back into the caliper too far, then you have to push twice; once
to get them back in range or touching a bit, once to do the real braking. In
between of course they can lget pushed back in a little.

This assuming that you can sit in the garage and mash the pedal and hold it
for a time without it going down.  It should be a firm pedal pretty quickly. 
In other words, not a lot of travel once the pads get to the rotor. If not,
could be more air in their yet compressing easier than the fluid.

Steve


Steve's Racing web site

  www.NoNameRacing.com

Elkhart Lake Racing & Sipping Society

  www.elrss.com

Message: 8
Date: Thu, 23 Jul 2009 10:53:25 -0700
From: Tim <tputland at charter.net>
Subject: [Roadsters] Brake pedal still to soft
To: "datsun-roadsters: autox.team.net"
    <datsun-roadsters at autox.team.net>
Message-ID: <20090723135325.HJB9R.2300017.root at mp11>
Content-Type: text/plain; charset=utf-8

I just bled the brakes on my 70 2000 again. The pedal seemed better at first
but once I had the car on the road it was soft and needed to be pumped to get
a decent feel. I have what look to be new pads on the front.

Do I still have air in the line(s)? Any thing else it might be?

Tim