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Low Brake Pedal

wlspn
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wlspn Proficient

wlspn

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I was unfortunate enough that when I first got my 32 it had the front & rear single-piston calipers.

Then was lucky enough to pick up a 33 GTST for next to nothing so swapped brake calipers (& rotors) over.

They stopped the car fine but even when properly bled the pedal felt like it didnt start actually doing anything until it was about halfway down.

I figured the 33 m/c probably had a bigger bore size & even if it didnt, the 32 m/c was a weird design with fluid going to the end of the bore then doing a u-turn before getting pushed down the line, so figured even if same bore that the design was giving me the low pedal feeling.

So recently when I fitted the motor & gearbox from the 33 into my 32 I also swapped master cylinders, modifying a few lines along the way.

However, now, even with the R33 master cylinder that was originally matched to the calipers I have, I have the same low pedal feel.

I am going to re-bleed the brakes but dont think it is going to make much difference.

Does anyone have any other suggestions or has anyone had this same problem?

Thoughts & advice would be great.

Cheers,

Brett

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-Jimmy- Mentor

-Jimmy-

Posted
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My R32 used to feel like this too, and after upgrading from single piston to R32 GTS-t rotors and calipers the problem still occured.

Is there any way you are able to 'tighten' just the brake pedal perhaps? Mine just feels loose, it doesn't feel like it's actually in the system.

Sorry I can't help but someone else might have had a similar problem with some advice hopefully :rant:

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  • 2 weeks later...
wlspn Proficient

wlspn

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Dont imagine master brace will help as it is first half of pedal thats soft. When I am pressing that first half there is bugger all resistance so dont think the firewall would be flexing whatsoever at that point.

& yeah, bled master cylinder before calipers but checked for air again after...

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wlspn Proficient

wlspn

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Dont imagine master brace will help as it is first half of pedal thats soft. When I am pressing that first half there is bugger all resistance so dont think the firewall would be flexing whatsoever at that point.

& yeah, bled master cylinder before calipers but checked for air again after...

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