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Milo72
Monza


Joined: 19 Sep 2018
Posts: 186
Location: Buckinghamshire
PostPosted: Sun Dec 02, 2018 4:36 pm    Post subject: Brake Caliper Bolts Reply with quote
I’ve seen conflicting information about replacing the bolts when taking the callipers off... it is necessary to do so?
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Robertb
Long Beach


Joined: 01 Sep 2003
Posts: 6993
Location: South Oxfordshire

2002 Porsche 996 Carrera 4S
PostPosted: Sun Dec 02, 2018 4:46 pm    Post subject: Reply with quote
I didn’t. That said, they undid quite easily. They are very substantial bolts.

If I’d had to really pull at them, or they seemed in poor condition I’d change them.
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Magic919
Suzuka


Joined: 05 Jun 2013
Posts: 1104
Location: Berkshire
PostPosted: Sun Dec 02, 2018 5:18 pm    Post subject: Reply with quote
I’m sure Porsche say they should be replaced once used. As always, you can choose to deviate.
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deMort
Long Beach


Joined: 21 Mar 2015
Posts: 6526
Location: Brighton
PostPosted: Sun Dec 02, 2018 8:33 pm    Post subject: Reply with quote
You dont have to replace them .. its good practise to do so but they are not stretch bolts.

All you need to do wether new or old is put some ally grease on the threads .. give them a chance to come undone the next time .

You dont have to replace the brake fixings either but again as a garage we do so thats all i can adivse .
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infrasilver
Fast & Furious
Fast & Furious


Joined: 04 Oct 2010
Posts: 8202
Location: East Midlands

2001 Porsche 996 Targa
PostPosted: Sun Dec 02, 2018 10:58 pm    Post subject: Reply with quote
I used to change mine for the first few disc changes but I have had the same ones in for a few disc changes now, I just clean them up and copper grease the threads, I've never had an issue getting one out but when I used to replace them I did have an issue as they seemed to take more force.

As deMort says they are not stretch bolts so no need to change them.
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DucatiRob
Albert Park


Joined: 22 Jul 2015
Posts: 1741
Location: Milton Keynes

2006 Porsche 997 Carrera 2S
PostPosted: Tue Dec 04, 2018 8:48 am    Post subject: Reply with quote
I have always used aluminium grease in place of copperslip, particularly on my bikes where steel, aluminium and stainless are involved. Less of an issue on a car I guess!
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