One possibility is a master cylinder problem.
But why now? -- When I bleed the brakes I put a 2x4 on the floorboard
beneath the pedal so the pedal doesn't go all the way to the floor and
the piston seal in the MC doesn't go into a section of the MC where it
hasnever been before. Maybe it's superstition but the idea that
getting into that area of the MC can mess up the seal.
Geo
On 7/25/11, Francis Precht <FPrecht at frostburg.edu> wrote:
> I have an issue that I don't remember ever having before. I had a leaky
> rear
> brake cylinder that I replaced on my TR4A along with new shoes. While I was
> at it (oh no) I saw that the rubber hoses on the rear brakes seemed like
> they
> were starting to crack, so I also replaced those. I then proceeded to bleed
> the entire system using DOT 5 silicone which has been in there since I
> acquired the car 6 years ago.
>
> I bled all 4 wheels, RR, RL, FR, FL and had a nice hard pedal. I started
> the
> car to go for a drive and the pedal went to the floor. Hmmmmm.....bubbles
> in
> the fluid I thought. I let the car sit for a week, rebled all 4 wheels to a
> hard pedal.....start the car.....same thing. I've now done this 3 times.
>
> I DO NOT have any brake assist/booster on the system. The easy fix is to
> bleed the brakes with the car running but that doesn't seem right. What am
> I
> doing wrong ???
>
> Many thanks for any insight.
> Bud Precht
>
>
> triumphs at autox.team.net
>
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