MGF VVC uneven front brake pad wear

http://www.ukmgparts.com
Ask the Gurus - Use this board to discuss problems or technical issues you have with your MGF/TF - there's always an expert around to help you!

Moderator: Committee Members

Forum rules
Not many rules really, this board being aimed at technical issues, it shouldn't fall foul (hopefully) of some of the more personal issues that can affect forums.

Rule 1 - Is that you need to think very carefully before posting anything technical or asking anything technical relating to the security system of the car - See 'Security Issues' sticky for more info.

Rule 2 - We (MGF Register) do not support copyright infringement and therefore references to CD ROM, PDF versions or paper copies of the workshop manual (for instance) should not be posted on the forum. We don't want to get into trouble and we'd rather sell you a genuine hard copy through our Regalia shop anyway! :)

Because advice is honestly and freely given in this technical section, much of it will be amateur experienced based, so any information is given in good faith and is not guaranteed as correct.
Post Reply
dunkle
Posts: 44
Joined: Wed Apr 12, 2017 7:45 pm
MGF Register Region: Devon & Cornwall
Model of Car: VVC
Location: EX15
Contact:

MGF VVC uneven front brake pad wear

Post by dunkle » Tue Jun 13, 2017 7:43 pm

Good evening,
just fitted some new Pagid pads to the front of the VVC and after 200 miles I notice that the pads are only using about two thirds of the disc are and the area on the disc near the hub is untouched, ie still rusty. Both sides are exactly the same.
Is this normal or have I missed something ?
Any help much appreciated, thank you.
MGF VVC 98 47K slowly restoring. 8-)

The old one
Posts: 47
Joined: Wed May 22, 2013 8:06 pm
MGF Register Region: East Anglia
Model of Car: 1.8 l

Re: MGF VVC uneven front brake pad wear

Post by The old one » Wed Jun 14, 2017 11:34 am

Hi,
Looks like pads are not sitting flat in the carrier, the only answer will be is too Strip them down and have a look. I'm most probably stating the obvious, but the pistons slid back ok, and the slides have been lubricated?
Steve

Geoff.F
Posts: 2376
Joined: Wed Oct 10, 2007 8:39 am
MGF Register Region: Midlands

Re: MGF VVC uneven front brake pad wear

Post by Geoff.F » Wed Jun 14, 2017 1:38 pm

The old one wrote:Hi,
Looks like pads are not sitting flat in the carrier, the only answer will be is too Strip them down and have a look. I'm most probably stating the obvious, but the pistons slid back ok, and the slides have been lubricated?
Steve
I would agree but would add that the carrier slides and the location pins should be cleaned and lubricated .
Another consideration would be if budget pads may turn out to be the most expensive ( and painful) in the long run.
Geoff.F

dunkle
Posts: 44
Joined: Wed Apr 12, 2017 7:45 pm
MGF Register Region: Devon & Cornwall
Model of Car: VVC
Location: EX15
Contact:

Re: MGF VVC uneven front brake pad wear

Post by dunkle » Wed Jun 14, 2017 7:41 pm

Thanks for the replies. Intend to strip them down at the weekend and have a look. Didn't realise Pagid were budget pads though.
MGF VVC 98 47K slowly restoring. 8-)

User avatar
Rob Bell
Committee Member
Posts: 14422
Joined: Tue Oct 02, 2007 2:36 pm
MGF Register Region: South East
Model of Car: MGF 1.8i + MGF Shed!

Re: MGF VVC uneven front brake pad wear

Post by Rob Bell » Tue Jul 04, 2017 10:03 am

Pagid are pretty decent and aren't the cheap eBay stuff you can buy.

Most likely sticking in the caliper grooves - might be that some of the protective paint needs to be removed to ensure easy movement of the pads in and out.

I presume that the slider pins have not seized?

dunkle
Posts: 44
Joined: Wed Apr 12, 2017 7:45 pm
MGF Register Region: Devon & Cornwall
Model of Car: VVC
Location: EX15
Contact:

Re: MGF VVC uneven front brake pad wear

Post by dunkle » Tue Jul 04, 2017 6:32 pm

Hi,
pins are all free and have just cleaned them all out again and greased up but to be fair have only driven about 150 miles. Will bed them in and see how they wear.
MGF VVC 98 47K slowly restoring. 8-)

User avatar
miker33
Posts: 15
Joined: Tue Mar 21, 2017 12:01 pm
MGF Register Region: Midlands
Model of Car: MGTF
Contact:

Re: MGF VVC uneven front brake pad wear

Post by miker33 » Wed Jul 05, 2017 7:05 am

If the pads were new but not the discs it may be the disc face that is not level rather than the new pads so bedding in should sort it after a while.
2001 MG TF 135
1979 Mini Clubman Estate http://www.twinenginemini.co.uk

dunkle
Posts: 44
Joined: Wed Apr 12, 2017 7:45 pm
MGF Register Region: Devon & Cornwall
Model of Car: VVC
Location: EX15
Contact:

Re: MGF VVC uneven front brake pad wear

Post by dunkle » Wed Jul 05, 2017 5:56 pm

miker33 wrote:If the pads were new but not the discs it may be the disc face that is not level rather than the new pads so bedding in should sort it after a while.
Thank you. I was hoping this was going to be the case.
MGF VVC 98 47K slowly restoring. 8-)

User avatar
Reckless Rat
Posts: 1887
Joined: Tue Apr 01, 2008 9:01 am
MGF Register Region: Europe
Model of Car: 97 1.8mpi in BRG
Location: South of France - in the Gard.

Re: MGF VVC uneven front brake pad wear

Post by Reckless Rat » Thu Jul 06, 2017 1:21 pm

It's not just a matter of ensuring that the pins are greased - the pad backing plates have to be free to move relative to the caliper carrier. New pads can either have paint on the bearing surface (the bits that are at 90° to the pad face) or might even need a quick pass over a grindstone to ensure that they can move in and out freely. Working surfaces of those parts of the pad/caliper interface (not the pad material or the disc for obvious reasons) should be treated with anti seize compound such as copaslip to ensure free movement.

dunkle
Posts: 44
Joined: Wed Apr 12, 2017 7:45 pm
MGF Register Region: Devon & Cornwall
Model of Car: VVC
Location: EX15
Contact:

Re: MGF VVC uneven front brake pad wear

Post by dunkle » Thu Jul 06, 2017 7:34 pm

Reckless Rat wrote:It's not just a matter of ensuring that the pins are greased - the pad backing plates have to be free to move relative to the caliper carrier. New pads can either have paint on the bearing surface (the bits that are at 90° to the pad face) or might even need a quick pass over a grindstone to ensure that they can move in and out freely. Working surfaces of those parts of the pad/caliper interface (not the pad material or the disc for obvious reasons) should be treated with anti seize compound such as copaslip to ensure free movement.
Thank you, will run for a while and then check again.
MGF VVC 98 47K slowly restoring. 8-)

Post Reply