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obiwan
Newbie


Joined: 08 May 2018
Posts: 6



PostPosted: Thu Nov 01, 2018 7:41 pm    Post subject: Sponges brakes on a 997 Reply with quote

Hi Folks,
I noticed my brakes were a bit spongey. Lots of pedal travel but stopped and activated the Abs.
So I bled the system using the old fashioned method of. a pal pressing the pedal.
The brakes have improved but I’m not sure they are really good enough.
with the engine off I pressed the pedal until the servo ran out of vacuum the pedal was hard but still not really solid.
I’m guessing there’s still air in the system.
Now I have a durametric professional to activate the pasm and abs but how do you do it?
Can anyone that has actually done this please advise with the correct bleeding process.
Has anyone e
sehad somilar issues and how did you solve them. I’ve also ordered. apressire bleeder kit but I’m quite happy using the old way has it’s worked for me forever.
Any 997 brake problems, travel not feeling tight etc and how you resolved them would be most welcome. Thanks Thumb Thumb
 
  
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daveessex
Newbie


Joined: 01 Dec 2014
Posts: 34



PostPosted: Fri Nov 02, 2018 4:10 pm    Post subject: Reply with quote

You really only need to look a couple of weeks ago to find exactly the same topic was discussed in this specific forum.
Not only will you find the same question asked and many willing to help with their own experience, but "Dimort" our Greek God of Brrrm Brrrm has waxed lyrical on exactly your dilemma.
 
  
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alex yates
Brands Hatch
Brands Hatch


Joined: 06 Mar 2014
Posts: 14277
Location: The Ribble Valley, Lancashire

2000 Porsche 996 Carrera 4

PostPosted: Fri Nov 02, 2018 4:20 pm    Post subject: Reply with quote

Did you bleed both sides of each caliper?
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2000 Manual 996 C4 Arctic Silver Convertible


 
  
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deMort
Zolder


Joined: 21 Mar 2015
Posts: 5337
Location: Brighton


PostPosted: Fri Nov 02, 2018 5:05 pm    Post subject: Reply with quote

Ok a recap ..

You had spongy brakes so you did a brake fluid change and you Still have spongy brakes although it might be a little better ?

First of all air has to get into a sealed system to give you spongy brakes so thats one thing to look for.

If no leaks and you have already bleed the brakes then there is no air imho .. the part with useing the tester to operate the abs unit is only required if you have Replaced the abs unit .. its not required when bleeding or replacing the brake fluid ..

At least ive never used it and ive done this job thousands of times Very Happy

You pump the pedal to get rid of vacumn and althought its hard it still has movement ? ..

It should be rock hard at that point so what we are left with is a brake flexi pipe is buldgeing / balooning or a faulty brake master cyl .

Personnely i would advise getting a garage to have a look and being very carefull if you drive it .. I would recomend you dont but i err on the side of caution .
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obiwan
Newbie


Joined: 08 May 2018
Posts: 6



PostPosted: Fri Nov 02, 2018 5:06 pm    Post subject: brakes Reply with quote

Yes I bled both sides. I’m particularly interested in bleeding using Durametric cable too.
 
  
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deMort
Zolder


Joined: 21 Mar 2015
Posts: 5337
Location: Brighton


PostPosted: Fri Nov 02, 2018 5:06 pm    Post subject: Reply with quote

daveessex wrote:

"Dimort" our Greek God of Brrrm Brrrm has waxed lyrical on exactly your dilemma.





Floor thats a new one on me !!
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7pm - 9pm
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Phil 997
Brands Hatch
Brands Hatch


Joined: 05 Dec 2015
Posts: 14419
Location: Bournemouth,Dorset

2009 Porsche 997 Carrera 4S

PostPosted: Fri Nov 02, 2018 6:02 pm    Post subject: Reply with quote

deMort wrote:
daveessex wrote:

"Dimort" our Greek God of Brrrm Brrrm has waxed lyrical on exactly your dilemma.





Floor thats a new one on me !!



Floor Floor love it Floor Floor heres a statue of him doing an oil change under a car
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911 Owners,Some Invest In The Future,
Others Enjoy The Moment Today.
 



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obiwan
Newbie


Joined: 08 May 2018
Posts: 6



PostPosted: Sat Nov 03, 2018 10:55 am    Post subject: Spongey brakes Reply with quote

That’s great advice . I’ve ordered new hoses and master cylinder and will replace over winter as the cars off the road now.
The cars done 70k so it’s worth a brake refurb.
Thanks for the heads up on that.
 
  
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-- 997 --
Suzuka


Joined: 11 Jun 2015
Posts: 1106



PostPosted: Sat Nov 03, 2018 1:49 pm    Post subject: Reply with quote

Phil 997 wrote:
deMort wrote:
daveessex wrote:

"Dimort" our Greek God of Brrrm Brrrm has waxed lyrical on exactly your dilemma.





Floor thats a new one on me !!



Floor Floor love it Floor Floor heres a statue of him doing an oil change under a car


Greek as in greek greek i.e. greece/cyprus or meaning the GOD !! 😎👍

Cheers

J
 
  
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