 Front brake problem, Caliper not lining up with rotor |
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Sunday, 13 July 2025 |
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| Morph914 |
 Aug 15 2020, 12:46 PM
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Member  Group: Members Posts: 435 Joined: 22-August 16 From: St Augustine, FL Member No.: 20,326 Region Association: South East States 
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Today I was installing my new PMB rotors and calipers, but it seems I took 1 step forward and 2 back. I purchased the late 5 lug conversion kit from PMB and I believe I received the wrong front rotors. (IMG:style_emoticons/default/headbang.gif)
After installing the rotors, I went to install the calipers and they did not line up. After doing some investigative work I discovered that my old rotors are a bit different, the hat is taller and the inside oil seal surface is recessed about a 1/4” where the new one seems to be flush with the rotor surface. I’ll have to wait until Monday to sort this out with Eric.    |
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| davep |
Aug 17 2020, 08:34 AM
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914 Historian Group: Benefactors Posts: 5,292 Joined: 13-October 03 From: Burford, ON, N0E 1A0 Member No.: 1,244 Region Association: Canada  |
Okay, I see the problem. You are referring to 911/912/914-6 hubs onto which a brake rotor is mounted.
The OP has a 914/4 strut with brake rotors that act as their own hubs; that is, the bearings are mounted within the brake rotor as opposed to being within the hub. So, completely different systems. The rotor in the first post appears to be an early type (not hub centric), so not appropriate for a later strut and caliper; the offset is different so that is why the caliper will not centre on the rotor. |
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Posts in this topic
Morph914 Front brake problem Aug 15 2020, 12:46 PM
bdstone914 What year us your car? The rotors change in 72 at ... Aug 15 2020, 01:44 PM
Morph914
What year us your car? The rotors change in 72 at... Aug 15 2020, 04:59 PM dr914@autoatlanta.com looks like you have an early rotor mounted that wo... Aug 17 2020, 09:33 AM Literati914 There are three different hub thicknesses... did P... Aug 15 2020, 02:46 PM Morph914
There are three different hub thicknesses... did ... Aug 15 2020, 05:01 PM davep
There are three different hub thicknesses.
I am a... Aug 16 2020, 02:16 PM Cairo94507 Great catch Bruce. :beer2: Aug 15 2020, 03:26 PM Literati914
There are three different hub thicknesses.
I am ... Aug 16 2020, 06:41 PM Literati914
Okay, I see the problem. You are referring to 911... Aug 17 2020, 10:37 PM davep Absolutely 3 unused holes; the one on the left is ... Aug 18 2020, 09:43 AM |
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