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Old 29th April 2021, 09:29   #1
macafee2
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Default Have I the wrong disc pads?

I have received new Mintex disc pads, the box is labelled Rover 75 and matches the reference number shown in the Mintex look up table MDB2011

https://www.brakebook.com/bb/mintex/...onSearch.xhtml

These disc pads have a chamfer on the leading and trailing edges.
The ones on the car dont. This means until the pad is worn to the chamfer I have less pad on the disc.
I dont recall when I fitted the existing pads years ago they had chamfers, they certainly dont now but that could be due to wear.
I am pretty sure what are on the car are mintex but i could be wrong

your thoughts and advice please

macafee2
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Old 29th April 2021, 09:40   #2
GaryGee
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Ones I’ve just fitted are same

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Old 29th April 2021, 09:58   #3
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I recently fitted new chamfered pads to my Focus. There was about 4mm remaining on the old pads. I didn't notice a reduction in braking performance with the new pads.
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Old 29th April 2021, 10:01   #4
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The chamfering is a design feature. I have read about this, but cannot remember what it is for exactly. Something like reduction of noise, or a smoother application. If I recall, it is something like due to the rotation of the disc, as the pad is applied, it does not get applied perpendicular to the disc on its initial contact (imagine your shoe when walking, the toe touches the ground first, and the rotates along the sole to the heel). I recall it making sense at the time when I read of it though.
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Old 29th April 2021, 10:05   #5
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Quote:
Originally Posted by macafee2 View Post
I have received new Mintex disc pads, the box is labelled Rover 75 and matches the reference number shown in the Mintex look up table MDB2011

https://www.brakebook.com/bb/mintex/...onSearch.xhtml

These disc pads have a chamfer on the leading and trailing edges.
The ones on the car dont. This means until the pad is worn to the chamfer I have less pad on the disc.
I dont recall when I fitted the existing pads years ago they had chamfers, they certainly dont now but that could be due to wear.
I am pretty sure what are on the car are mintex but i could be wrong

your thoughts and advice please

macafee2
They will be the right pads , By design most pads have chamfers on to varying degrees .
Most chamfers only go half pad thickness so as your pads wear down the pad surface area gets greater , hence the photo of the pads from Garygee. Fitted as axle pair they will not be causing your brake problems

Last edited by TourerSteve; 29th April 2021 at 10:28..
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Old 29th April 2021, 10:08   #6
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It is common for new brake pads to have chamfers on the linings, that is to help prevent brake squeal.
Years ago when I worked in a Rover main dealer we used to remove brake pads, deglaze and chamfer the linings, then refit to rectify brake squeal when reported by customers (providing there was sufficient linings left on the pads obviously).
Peugeot OEM replacement pads used to be supplied with a break-in compound applied to the linings to aid bedding in, deglaze the discs and minimise the risk of brake squeal.
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Old 29th April 2021, 10:20   #7
macafee2
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gents I really appreciate the quick replies.
Mine look just like those on GaryGee's post.
If the weather is good tomorrow I will get on and fit the new offside pads, piston and seals and then change the pads on near side. Then re-bleed.

thanks again

macafee2

Last edited by macafee2; 29th April 2021 at 10:28..
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Old 29th April 2021, 19:38   #8
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You might start off with less pad on the disc but the braking effort will be the same. The psi will be greater.---
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