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Brake Rotors #726296
01/12/21 01:26 PM
01/12/21 01:26 PM
Joined: Jun 2019
Posts: 250
Bethel, CT USA
PaulyG Offline OP
Learner Plates Off!
PaulyG  Offline OP
Learner Plates Off!

Joined: Jun 2019
Posts: 250
Bethel, CT USA
What are the wear limits on the 4/4 rotors? GoMog lists that pre '92 are .375" when new, but not the wear limit.

Re: Brake Rotors [Re: PaulyG] #726304
01/12/21 03:37 PM
01/12/21 03:37 PM
Joined: Aug 2010
Posts: 3,972
Costock, South Nottinghamshire...
Paul F Offline
Talk Morgan Addict
Paul F  Offline
Talk Morgan Addict

Joined: Aug 2010
Posts: 3,972
Costock, South Nottinghamshire...
Sorry, no idea. I recently had mine changed after 33,000 miles because the old ones had suffered from distortion.


Paul
Costock, UK
2014 4/4 Rolls Royce Garnet Red
Disco 4
Teddy - 17h1 Irish Draught cross
Re: Brake Rotors [Re: PaulyG] #726334
01/12/21 07:54 PM
01/12/21 07:54 PM
Joined: Jun 2019
Posts: 250
Bethel, CT USA
PaulyG Offline OP
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PaulyG  Offline OP
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Joined: Jun 2019
Posts: 250
Bethel, CT USA
Mine feel fine, just want to go through the whole braking system this winter. I'm guessing the limit is around .325", but I'm hoping for a definite answer.

Re: Brake Rotors [Re: PaulyG] #726986
08/12/21 10:51 PM
08/12/21 10:51 PM
Joined: Aug 2011
Posts: 894
Aberdeenshire
E
Eddie Cairns Offline
Talk Morgan Regular
Eddie Cairns  Offline
Talk Morgan Regular
E

Joined: Aug 2011
Posts: 894
Aberdeenshire
I would use 0.324 in or 8.5mm for a non ventilated disc minimum thickness.

Last edited by Eddie Cairns; 08/12/21 10:59 PM.
Re: Brake Rotors [Re: PaulyG] #727019
09/12/21 02:58 PM
09/12/21 02:58 PM
Joined: Jun 2019
Posts: 250
Bethel, CT USA
PaulyG Offline OP
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PaulyG  Offline OP
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Joined: Jun 2019
Posts: 250
Bethel, CT USA
New they measure .375 I checked them yesterday and that's what they measure, with 49,000 miles. I'm thinking the grease and oil build up on the pads has saved the rotors from wear.

I'm in the process of correcting all the issues.


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