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boardingnath997
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Joined: 28 Sep 2016
Posts: 56



PostPosted: Sat Jan 06, 2018 6:28 pm    Post subject: Brake DIY Question Reply with quote

Undertook some DIY today - replacing front rotors and pads. Have done it before on other cars however first time with the Porsche. Didn't take long to run into my first issue. Even with an impact driver, I couldn't get the screws that hold the rotor to the hub. I ended up have to drill the face off it to get the rotor off. Problem was I then couldn't get the whole screw out and I didn't really have the right equipment to rebore the hole. Anyway I made the decision to put it all back together without these screws. Made it a little bit more difficult to get the wheel back on as there was a bit of movement in the rotor, but it seemed OK once the wheel was on. I've since double checked that the wheel is sitting flush with the rotor and triple checked wheel bolt tourques. I've also taken it for a drive and it seems fine. My thinking is that the wheel bolts hold it all together anyway??

My question to the pro's is - Is it OK to run without the screws?

Oh, and 3 of the dampening plates wouldn't come out. Was worried about forcing the issue and damaging the pistons so just decided to re-use. Less worried about this issue.

I will get it all sorted whenever it is in the shop again.
 
  
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DRZ911
Barcelona


Joined: 13 Mar 2013
Posts: 1338
Location: Belfast


PostPosted: Sat Jan 06, 2018 6:36 pm    Post subject: Re: Brake DIY Question Reply with quote

boardingnath997 wrote:
My question to the pro's is - Is it OK to run without the screws?

Not a problem to run without the disc securing screw. Thumb

When you can, get the old screw drilled out, the hole retapped and a new screw (preferably with copperslip on it) fitted.
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deMort
Reims


Joined: 21 Mar 2015
Posts: 4455
Location: Brighton


PostPosted: Sat Jan 06, 2018 6:41 pm    Post subject: Reply with quote

Yup its fine .. the screws are there to hold the disc in place when the wheel is removed.

As you have already found out its a bit tricky getting the wheel back on with it loose.

If the disc had not seated correctly you would certainly know about it !
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APL911
Spa-Francorchamps


Joined: 15 Aug 2017
Posts: 271



PostPosted: Sat Jan 06, 2018 6:52 pm    Post subject: Reply with quote

Funnily enough I’ve had my breaks apart today as well. Mine were squeaking so gave them a good clean up and some copaslip.

As it happens one of my fronts has one of the screws missing as someone in the past has snapped a head off. My car has been running with one of these screws missing. I don’t think it’s a problem other than when you are trying to refit the wheel. (Hopefully you don’t have to ever change a wheel on the side of the road!)
 
  
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boardingnath997
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Joined: 28 Sep 2016
Posts: 56



PostPosted: Sat Jan 06, 2018 6:56 pm    Post subject: Reply with quote

Nice one, thanks guys! thumbsup
 
  
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boardingnath997
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Joined: 28 Sep 2016
Posts: 56



PostPosted: Wed Jan 10, 2018 12:35 pm    Post subject: Reply with quote

Need to ask for some more help from the professionals! I'm getting squeaking/squealing from the brakes now. Last night I took the wheels off and put a liberal amount of grease between the re-used shims and pad thinking that this would be the cause, and unfortunately hasn't fixed the issue. I'm at a bit of a loss as to what it could be. The sound is more prevalent at low speeds when not actually using the brakes.

For reference I used OEM rotors (sebro) and pads (textar)
 
  
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Cunno
Watkins Glen


Joined: 13 Dec 2008
Posts: 2206
Location: Nottinghamshire


PostPosted: Wed Jan 10, 2018 1:29 pm    Post subject: Reply with quote

boardingnath997 wrote:
Need to ask for some more help from the professionals! I'm getting squeaking/squealing from the brakes now. Last night I took the wheels off and put a liberal amount of grease between the re-used shims and pad thinking that this would be the cause, and unfortunately hasn't fixed the issue. I'm at a bit of a loss as to what it could be. The sound is more prevalent at low speeds when not actually using the brakes.

For reference I used OEM rotors (sebro) and pads (textar)


Have you bedded the pads in? That the car upto 70mph and stand on the brake peddle then repeat 4-6 times. If everything else has been copper greased this should sort
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Mikee Quickstep
Silverstone


Joined: 13 Aug 2014
Posts: 115
Location: London


PostPosted: Wed Jan 10, 2018 3:05 pm    Post subject: Reply with quote

boardingnath997 wrote:
Last night I took the wheels off and put a liberal amount of grease between the re-used shims and pad thinking that this would be the cause)


New shims come with a self adhesive pad which attaches to the back of the brake pad, ie the shims work by being stuck to the brake pad not slipping against them. Don’t know if it will cure your issue but if you clean up the shims and backs of the pads and use a spray adhesive to attach the shims to the pads it may help. Incidentally I made the exact same mistake when I changed my pads last time before I was helpfully corrected by my local Indy Smile
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boardingnath997
Trainee


Joined: 28 Sep 2016
Posts: 56



PostPosted: Wed Jan 10, 2018 4:23 pm    Post subject: Reply with quote

Mikee Quickstep wrote:
boardingnath997 wrote:
Last night I took the wheels off and put a liberal amount of grease between the re-used shims and pad thinking that this would be the cause)


New shims come with a self adhesive pad which attaches to the back of the brake pad, ie the shims work by being stuck to the brake pad not slipping against them. Don’t know if it will cure your issue but if you clean up the shims and backs of the pads and use a spray adhesive to attach the shims to the pads it may help. Incidentally I made the exact same mistake when I changed my pads last time before I was helpfully corrected by my local Indy Smile


Thanks for the tip, will try this as the next step if they don't calm down over the next week
 
  
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deMort
Reims


Joined: 21 Mar 2015
Posts: 4455
Location: Brighton


PostPosted: Wed Jan 10, 2018 8:06 pm    Post subject: Reply with quote

Just to say its as Mikee has said .. you fit new backing plates / dampers to the pads .. you dont grease anything.

I fit all new parts when replaceing them so backing plates , fixing kit , pads and discs .. i have never had one make a noise .. or come back with said issue .

You have no idea how many of these i have replaced over the years !
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Jam911
Barcelona


Joined: 31 Oct 2010
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PostPosted: Wed Jan 10, 2018 8:27 pm    Post subject: Reply with quote

Sorry to butt in but where is the best place to buy the shims?
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deMort
Reims


Joined: 21 Mar 2015
Posts: 4455
Location: Brighton


PostPosted: Wed Jan 10, 2018 8:36 pm    Post subject: Reply with quote

ECP .. but to be honest they aint the best quality , considering how long the discs / pads last then i would advise Porsche ones .. you pay a bit more but you get what you pay for .
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Jam911
Barcelona


Joined: 31 Oct 2010
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PostPosted: Wed Jan 10, 2018 8:48 pm    Post subject: Reply with quote

Thanks and sorry one more question.

How do i know which sensors to get horseshoe or not?
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deMort
Reims


Joined: 21 Mar 2015
Posts: 4455
Location: Brighton


PostPosted: Wed Jan 10, 2018 8:50 pm    Post subject: Reply with quote

Sorry young man .. i fit what im given , i can tell from a picture of the pads but i dont know what pads are fitted to each model Sad
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Jam911
Barcelona


Joined: 31 Oct 2010
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PostPosted: Wed Jan 10, 2018 8:56 pm    Post subject: Reply with quote

Great thanks
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boardingnath997
Trainee


Joined: 28 Sep 2016
Posts: 56



PostPosted: Thu Jan 11, 2018 8:44 am    Post subject: Reply with quote

Jam911 wrote:
Sorry to butt in but where is the best place to buy the shims?


I got mine from Carparts4less
 
  
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boardingnath997
Trainee


Joined: 28 Sep 2016
Posts: 56



PostPosted: Thu Jan 11, 2018 8:45 am    Post subject: Reply with quote

Demort wrote:
Just to say its as Mikee has said .. you fit new backing plates / dampers to the pads .. you dont grease anything.

I fit all new parts when replaceing them so backing plates , fixing kit , pads and discs .. i have never had one make a noise .. or come back with said issue .

You have no idea how many of these i have replaced over the years !


Thanks Demort. I think that's part of the issue, I couldn't get the old backing plates off so have had to re-use the existing one's
 
  
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