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Topic: rattling brake pads (Read 815 times) |
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Bobbit
Full Member
Scorpio 2.3 ghia x estate
Posts: 253
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rattling brake pads
« on: Jul 28th, 2013, 4:50pm » |
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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
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Simmo
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I'm an OAP !
Posts: 5508
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Re: rattling brake pads
« Reply #1 on: Jul 28th, 2013, 7:38pm » |
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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 and check out Jonnycabs link in the fourth reply. I knew he was involved!. 
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Tompion
Administrator
1997 2.3 Ultima estate.
Posts: 2918
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Re: rattling brake pads
« Reply #2 on: Jul 28th, 2013, 8:19pm » |
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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.
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ABS multiplug wheel sensor pins MK IV or MK 20
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Bobbit
Full Member
Scorpio 2.3 ghia x estate
Posts: 253
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Re: rattling brake pads
« Reply #3 on: Jul 29th, 2013, 8:28am » |
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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
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Jonnycab
Senior Member
Former owner of 2.3 Ultima Facelift saloon
Posts: 3900
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Re: rattling brake pads
« Reply #4 on: Jul 30th, 2013, 12:51pm » |
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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
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Bobbit
Full Member
Scorpio 2.3 ghia x estate
Posts: 253
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Re: rattling brake pads
« Reply #5 on: Jul 30th, 2013, 3:49pm » |
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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
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Tompion
Administrator
1997 2.3 Ultima estate.
Posts: 2918
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Re: rattling brake pads
« Reply #6 on: Jul 30th, 2013, 5:48pm » |
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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. 
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ABS multiplug wheel sensor pins MK IV or MK 20
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