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How To Rebuild Calipers
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!tom  



Joined: 28 Aug 2006
Posts: 1869
Location: Victoria, BC Canada

PostPosted: Thu Dec 15, 2011 4:06 pm    Post subject: Reply with quote

kcoyle wrote:
...one should not get too crazy with the cheeze whiz (torch) heating the caliper hold down wire too much...

I don't see the point in using a torch at all anywhere in these procedures.
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Rasta Monsta  



Joined: 12 Jul 2006
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Location: PacNW

PostPosted: Fri Dec 16, 2011 3:22 am    Post subject: Reply with quote

Alternative to paint, zinc plating:




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Last edited by Rasta Monsta on Fri Dec 16, 2011 4:41 am; edited 1 time in total
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9xx  



Joined: 18 Jun 2006
Posts: 627
Location: Jarvenpaa, Finland

PostPosted: Fri Dec 16, 2011 4:39 am    Post subject: Reply with quote

Hey that is nice! I put mine into a homemade citric acid bath. Interestingly, under all that heavy rust there was still some factory zinc coating present as you see in the picture. I'm just going paint the calipers black and install some new seals, so they'll be good enough.




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Mikko

All gone: 931 '82 Alpine White, original option "220" G31 with LSD + 3 x 944
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9xx  



Joined: 18 Jun 2006
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Location: Jarvenpaa, Finland

PostPosted: Sun Mar 04, 2012 4:25 am    Post subject: Reply with quote

Done!


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musicalannette  



Joined: 21 Feb 2012
Posts: 411
Location: UK

PostPosted: Mon Mar 05, 2012 8:59 pm    Post subject: Nice Post Reply with quote

Really really nice post, brilliant step by step guide, thanks for taking the time. Just thought you might like to know, if you can find some rubber grease (bright red in colour) and very lightly coat the piston seals in it it will stop the piston from sticking if the car is left for a while, also if you apply castrol ph grease between the seal and the dust boot, should the boot fail or perish, or if the car is left standing for a long time, this again stops caliper from becoming "sticky". Good castrol PH grease is now hard to come by in the UK (European Commision stating what we can and can't have!), it used to be calcium based and this is the type you really want, the later is Lime based, it still works but does not sit on the shelf for too long without seperating (good for castrol but not for me!).
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knqst  



Joined: 10 Apr 2015
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Location: Nottingham

PostPosted: Fri Apr 10, 2015 10:16 pm    Post subject: Reply with quote

[quote="kcoyle"]Excellent writeup. I'm in the middle of it now and would like to add that one should not get too crazy with the cheeze whiz (torch) heating the caliper hold down wire too much or you will wind up with this.

[img]http://i1097.photobucket.com/albums/g358/kcoyle02/103_0611-1.jpg[/img]

$40.23 for two new wires. :oops:[/quote]

Exact same has happened to me! Does anyone know where I can get new caliper hold down wires?

-Kyle
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kcoyle  



Joined: 16 Jan 2011
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Location: Long Island, NY

PostPosted: Sat Apr 11, 2015 4:48 am    Post subject: Reply with quote

Got them at the dealership.


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Harhmless  



Joined: 09 Sep 2015
Posts: 14
Location: Buffalo, NY

PostPosted: Tue Nov 10, 2015 10:56 am    Post subject: Reply with quote

Can anyone confirm that this process will or will not work on the rear calipers as well?
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geoffbradley  



Joined: 15 May 2015
Posts: 5
Location: Basingstoke

PostPosted: Tue Dec 08, 2015 8:34 pm    Post subject: Reply with quote

I have used this process to break drown the rear callipers on my 924s and found it really helpful.

To answer the query on why you need to have the piston aligned at 20 degeee the cut out is to make the brake pad hit the leading edge first so it won't squeel. Kind of like setting brake pads on a bicycle. If it isn't set correctly you will end up wearing out one end of the pad prematurely.
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Rasta Monsta  



Joined: 12 Jul 2006
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PostPosted: Wed Dec 09, 2015 12:28 am    Post subject: Reply with quote

Similar to rears, but rears have a maddening plastic slider.
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Mags  



Joined: 03 May 2016
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Location: VA, USA

PostPosted: Tue May 24, 2016 4:47 am    Post subject: Base model 924 brake parts Reply with quote

Does anyone have a link to the brake parts needed for a base model 924 with 4 lugs and drums in the rear?

I cannot find the pins/springs and even finding the seals to rebuild the calipers is iffy.

Any links or advise will be greatly appreciated!
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'81 Gold 924 Base model
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Rasta Monsta  



Joined: 12 Jul 2006
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Location: PacNW

PostPosted: Tue May 24, 2016 6:30 am    Post subject: Reply with quote

Not to be a pain, but have you considered converting to four wheel disc? It makes for a cheap and effective upgrade.
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  • Weiße Scheiße (1987 924S) - In Progress
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Mags  



Joined: 03 May 2016
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Location: VA, USA

PostPosted: Tue May 24, 2016 6:41 am    Post subject: Reply with quote

Rasta Monsta wrote:
Not to be a pain, but have you considered converting to four wheel disc? It makes for a cheap and effective upgrade.


Not seriously yet... but it's not out of the question.
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Rasta Monsta  



Joined: 12 Jul 2006
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PostPosted: Tue May 24, 2016 10:46 am    Post subject: Reply with quote

Whew. If I may use a cliche, it is indeed a "no brainer."
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Mags  



Joined: 03 May 2016
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Location: VA, USA

PostPosted: Tue May 24, 2016 12:36 pm    Post subject: Reply with quote

Rasta Monsta wrote:
Whew. If I may use a cliche, it is indeed a "no brainer."


Uh, no. The car is enough of a project without swapping out the entire braking system and hubs and wheels! I just need the car to stop!
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