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Soft brake pedal question?? hmmmm?

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Old Jun 30, 2003 | 04:30 PM
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Default Soft brake pedal question?? hmmmm?



The brake pedal in my '79 is, and has always been very 'soft' , and not particularly re-assuring, even though the brakes themselves seem to stop the car ok. .... is this normal for a vette of this era with power brakes??

I've bled the system numerous times, re-built the master cylinder, replaced the rear calipers etc

...... does anyone with a similar year vette also have a spongy feeling brake pedal?.... is this the norm? :confused:
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Old Jun 30, 2003 | 06:46 PM
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Default Re: Soft brake pedal question?? hmmmm? (Skeets)

check your rubber brake lines they can cause a spongy pedal .are you bleeding the brakes in the proper order?bleed it again .
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Old Jun 30, 2003 | 06:59 PM
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Default Re: Soft brake pedal question?? hmmmm? (terry82)


i've fitted new stainless steel braided fexible hoses, so hopefully there shouldn't be a problem there.

.... what IS the correct order to bleed the brakes? .... i'm gonna have another go at them tomorrow.
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Old Jun 30, 2003 | 07:00 PM
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Default Re: Soft brake pedal question?? hmmmm? (terry82)

Are you pressure bleeding them or taking the "gravity" approach?

I had lots of problems with a prior vette with water contamination that seemed to lead to a soft pedal. A new set of SS calipers & a correct bleeding made a world of difference. Converting the rubber lines to SS will only make a moderate difference, at best.
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Old Jun 30, 2003 | 07:06 PM
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Default Re: Soft brake pedal question?? hmmmm? (Jack71)



I pump the brake pedal, whilst my dad mans the bleed nipples.... is that the gravity method?

I've only fitted SS calipers to the rear so far, as the front ones weren't leaking.

What is the best way to bleed?
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Old Jun 30, 2003 | 07:29 PM
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Default Re: Soft brake pedal question?? hmmmm? (Skeets)

i always gravity bleed mine since i work by myself in the garage, i take the cap off the master cylinder and open the right rear bleeders up first,let them trickle by itself till all fluid then tighten then left rear then right front then left front and it works the best for me.
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Old Jun 30, 2003 | 07:53 PM
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Default Re: Soft brake pedal question?? hmmmm? (patsnitrovette)


i think i'll try completely changing the brake fluid... just to make sure that there's no absorbed water or crud in the system, then bleeding the back first.

I'll let you know what happens.

thanks for your thoughts guys. :thumbs:
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