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        General >> Give/Need advice to/from others >> rattling brake pads
        
(Message started by: Bobbit on Jul 28^th, 2013, 4:50pm)

Title: rattling brake pads
Post by Bobbit on Jul 28^th, 2013, 4:50pm

hi Guys,
I have a fairly loud rattling noise coming from the front offside wheel.
If I put my foot on footbrake it stops.
Anybody any idea why pads should suddenly start rattling.
cheers Bob

Title: Re: rattling brake pads
Post by Simmo on Jul 28^th, 2013, 7:38pm

Have you lost the 'spring clips'?. Are you sure it is the pads? Have they been changed recently? We had a thread on this some while ago. I have a feeling it was Jonnycab?. ;)

Have a read of This thread (http://www.fordscorpio.co.uk/cgi-bin/yabb/YaBB.pl?board=Problems;action=display;num=1302364377;start=10#10) and check out Jonnycabs link in the fourth reply. I knew he was involved!. ;D

Title: Re: rattling brake pads
Post by Tompion on Jul 28^th, 2013, 8:19pm

The inner pad clips into the piston so that one shouldn't rattle.

The spring clip on the outside springs the 2 parts of the calliper together trapping the outer pad at 3 points – the inner point is the raised semicircular part of the pad which locates in a curved register in the calliper. That should prevent the pad clunking assuming the spring is in good condition.

Title: Re: rattling brake pads
Post by Bobbit on Jul 29^th, 2013, 8:28am

Thanks for the info guys.
Simmo thanks for link, jonnycabs thread is indeed what mine are doing, clunking and rattling,
tompion all springs and clips were ok when I changed pads 4 months ago.
Will wait till it stops raining and take it apart again.
Will let you know if I find a fix.
Cheers Bob

Title: Re: rattling brake pads
Post by Jonnycab on Jul 30^th, 2013, 12:51pm

My brake pads did eventually stop clunking all on there own ::)

My theory :- I do think that some pattern pads are not made to original spec & that they are slighly smaller, which allows them to move & clunk against the pad carriers. The reason they stopped clunking is probably because over time, a layer of brake dust most likely built up, which prevented the pads from moving & also cushioned any slight movement.

So when replacing the pads, then it may be advisable to NOT clean all the crud from the pad carriers ;)

Title: Re: rattling brake pads
Post by Bobbit on Jul 30^th, 2013, 3:49pm

Thanks for that jonnycab, yes its seems logical that is what it will be, I was just worried it was something serious.
Thanks for all your help.
Cheers Bob

Title: Re: rattling brake pads
Post by Tompion on Jul 30^th, 2013, 5:48pm

Thought I’d post a picture as it’s difficult to explain what I meant.
I believe there are 2 makes of calliper used so yours may not be quite the same.
There appear to be some similar looking Granada pads (haven’t a clue if they fit) that don’t have the circular raised part on the pad so check that yours have.

The carrier spring pushes the carrier against the pad at the 2 points indicated with the red arrows into the curved register indicated by the green arrow. The pad shouldn’t be able to drop just with gravity. I assume the pad rotates slightly under braking thereby taking up the slack/wear or rides out of the register until it hits the stop – either way it would spring the calliper & carrier apart.
Maybe if it doesn’t work smoothly the arrangement may snap shut after braking. That is of course just guess work on my part. :)

http://i.imgur.com/dI0guE8.jpg