Anti-Rattle Pads
Discussion
Um, I don't think you stick them on the caliper side. If you're looking at the disc/caliper from the back i.e you can see both pads sandwiching your disk, you should be able to grab your pads and make then move up and down slightly in the caliper. Thats what causes the rattle, the up/down movement of the pad not the in-out movement towards the disk. The pads stick on the caliper where the pads touch the bottom.
Thats what it was on my S2 anyway. Worked a treat.
Thats what it was on my S2 anyway. Worked a treat.
MiniDiva said:
If they're the rubbery sticky-backed black things, then they stick on the back (back as in non-friction material side, not the edge of the pad pointing backwards)of the brake pad so that the caliper piston squishes into it to grip the pad.
No they don't - assuming they're little bits of sticky backed rubber you get from Eliseparts, they go at the top and bottom edge of each pad (as you look at them from the side, sat in the caliper) to the stop the clicking noise made as they move up and down a little bit when you apply the brakes.
Edit>> Beaten to it!
Edited by cuzza on Thursday 14th December 15:01
Oh well, the pads I took out recently had them on the backs - those were the factory fitted pads aswell as far as I'm aware. The new stickies supplied with the new pads were cut exactly to the shape of the back of the pad, so that's where they went.
Because the caliper presses into it, the pads don't jiggle up & down.
Seems to work too! At least it ain't gonna fall off
Because the caliper presses into it, the pads don't jiggle up & down.
Seems to work too! At least it ain't gonna fall off
I didn't actually use the Eliseparts ones anyway, I used some strips of foam tape stuck along the entire top and bottom of the pad and covered in copper grease - nice snug fit and no rattling 
MiniDiva, the bits you refer to are anti squeal shims and are a Lotus part, you're right the OE pads will have them on and you can get them as a seperate part no. for aftermarkets IIRC.
MiniDiva, the bits you refer to are anti squeal shims and are a Lotus part, you're right the OE pads will have them on and you can get them as a seperate part no. for aftermarkets IIRC.
I have applied Anti Squeal Pads to the back of the brake pads to stop the squeal (obviously).
The Anti Rattle pads are to stop the Heavy Metal Mouse Drumkit in the front left wheel arch.
So are they to be stuck to the calipers or the side of the pads??
It is my understanding that they are to be stuck on the caliper running adjacent to the side of the pad.
On another note, should I be putting copaslip on the back of the anti SQUEAL pads on assembly? I suppose it won't hurt?
The Anti Rattle pads are to stop the Heavy Metal Mouse Drumkit in the front left wheel arch.
So are they to be stuck to the calipers or the side of the pads??
It is my understanding that they are to be stuck on the caliper running adjacent to the side of the pad.
On another note, should I be putting copaslip on the back of the anti SQUEAL pads on assembly? I suppose it won't hurt?
There is some rather dangerous advice being put forward on this thread.
The brake pad is pushed towards the brake disc by the hydraulic brake piston(s). You do not want to be putting any compressible material between the piston and the back of the brake pad. Certainly not some strip of rubber! There is no particular need to put anything there - the piston will push the pad directly. Squeal is a lot more to do with the pad compound - eg pagid RS14's will squeal no matter what you do. A small amount of coppaslip is the most I would want to put there.
As for the pads to stop rattle / squeal, they do not need to be placed at both ends of the pad. Under braking, the pad will move slightly in the caliper in the same direction as the rotation of the wheel. Lets call this the front (which it usually is). The pads should be placed at the back, so that they too are not compressed under braking, otherwise the pad just gets crushed and doesn't perform any function.
I will try to find an illustration.
The brake pad is pushed towards the brake disc by the hydraulic brake piston(s). You do not want to be putting any compressible material between the piston and the back of the brake pad. Certainly not some strip of rubber! There is no particular need to put anything there - the piston will push the pad directly. Squeal is a lot more to do with the pad compound - eg pagid RS14's will squeal no matter what you do. A small amount of coppaslip is the most I would want to put there.
As for the pads to stop rattle / squeal, they do not need to be placed at both ends of the pad. Under braking, the pad will move slightly in the caliper in the same direction as the rotation of the wheel. Lets call this the front (which it usually is). The pads should be placed at the back, so that they too are not compressed under braking, otherwise the pad just gets crushed and doesn't perform any function.
I will try to find an illustration.
Edited by shangani on Thursday 14th December 17:37
I always and only use some special coppergrease and on the back(where the piston touch the pad) and on the parts where the pads move in the brakecallipers? don't know how to say it all in English
anyway on the Iron parts where the pads move a bit and they have to move a bit but be carefull not to touch the brakesurvace of eighter the pad or the disk with your greasy hands...
GTRene
anyway on the Iron parts where the pads move a bit and they have to move a bit but be carefull not to touch the brakesurvace of eighter the pad or the disk with your greasy hands... GTRene
Hi Guys
The anti rattle and anti squeal pads are the same thing, they stick on the back of the pad, between the metal part of the pad and the piston.
The piston sinks into the rubber during the bedding process that way the pad and the piton are as one, so when you release the brake the piston is drawn back very slightly, and thus stopping squeal. Because the piston and pad are as one the pad does not rattle.
as for the concern about compressible material between piston and pad this is very slight and once the brakes are bedded in properly, the squeal pads do not compress any further.
hope this helps
Orange
The anti rattle and anti squeal pads are the same thing, they stick on the back of the pad, between the metal part of the pad and the piston.
The piston sinks into the rubber during the bedding process that way the pad and the piton are as one, so when you release the brake the piston is drawn back very slightly, and thus stopping squeal. Because the piston and pad are as one the pad does not rattle.
as for the concern about compressible material between piston and pad this is very slight and once the brakes are bedded in properly, the squeal pads do not compress any further.
hope this helps
Orange
OrangeD said:
Hi Guys
The anti rattle and anti squeal pads are the same thing, they stick on the back of the pad, between the metal part of the pad and the piston.
The piston sinks into the rubber during the bedding process that way the pad and the piton are as one, so when you release the brake the piston is drawn back very slightly, and thus stopping squeal. Because the piston and pad are as one the pad does not rattle.
as for the concern about compressible material between piston and pad this is very slight and once the brakes are bedded in properly, the squeal pads do not compress any further.
hope this helps
Orange
The anti rattle and anti squeal pads are the same thing, they stick on the back of the pad, between the metal part of the pad and the piston.
The piston sinks into the rubber during the bedding process that way the pad and the piton are as one, so when you release the brake the piston is drawn back very slightly, and thus stopping squeal. Because the piston and pad are as one the pad does not rattle.
as for the concern about compressible material between piston and pad this is very slight and once the brakes are bedded in properly, the squeal pads do not compress any further.
hope this helps
Orange
Sorry, but that is b*llocks. Anti rattle pads do not go on the back of the pad. Feel free to speak to your local lotus specialist tomorrow.
In the meanwhile here is a picture to show where they go, though one side (the back) is enough.
www.elise-faq.info/content/brakes/caliper1.php
Edited by shangani on Thursday 14th December 23:37
Shangers, ye are wise of course... but the eliseparts anti-squeal solutions do indeed suggest what Mini & Orange have been describing (however incorrect the practice may seem) www.eliseparts.com/shop/index.php?main_page=product_info&products_id=386
And every specialist I have spoken to is violently against them. Why put compressible material between piston and pad. Once it has disintegrated (which it will in no time), what purpose will it serve? Hence why oppaslip or the "liquid" eliseparts describe is the way to go. Read Orange's post, which is clearly intended as a correction of what I put earlier.
Aftermarket pads are slightly looser in the calipers than the OE ones and they tend to move slightly backwards and forwards when the brakes are depressed / released. The anti-rattle pad stops this movement. If you put it at the front position in the picture, the rattle pad gets squashed and disintegrates as it would if you stuck an adhesive pad at the back of the brake pad.
I have been through every permutation on this subject and have settled on what was unanimously recomended by 3 different lotus specialists.
But hey, it's a free country - do whatever makes you happy.
Aftermarket pads are slightly looser in the calipers than the OE ones and they tend to move slightly backwards and forwards when the brakes are depressed / released. The anti-rattle pad stops this movement. If you put it at the front position in the picture, the rattle pad gets squashed and disintegrates as it would if you stuck an adhesive pad at the back of the brake pad.
I have been through every permutation on this subject and have settled on what was unanimously recomended by 3 different lotus specialists.
But hey, it's a free country - do whatever makes you happy.
Maybe its a better idea to buy new anti rattle springs for them? or even better then that, upgrade your callipers with some of these??
www.eliseparts.com/shop/index.php?main_page=product_info&products_id=589
The anti rattle rubbers on the places which shangani suggested don't seem like a very good idea to me, that way the pads can't move freely anough and its not supposed to have rubbers on that place origenally...
www.elise-faq.info/content/brakes/padchange.php
GTRene
with some of these?? www.eliseparts.com/shop/index.php?main_page=product_info&products_id=589
The anti rattle rubbers on the places which shangani suggested don't seem like a very good idea to me, that way the pads can't move freely anough and its not supposed to have rubbers on that place origenally...
www.elise-faq.info/content/brakes/padchange.php
GTRene
Edited by GTRene on Friday 15th December 00:09
Good lord are my posts invisible ? You can put pads on for sqeal and/or rattle but they are NOT the same thing, I really cant make it much more simple than supplying the product URLs to click on;
Anti rattle pads; www.eliseparts.com/shop/index.php?
Anti Squeal pads and paste; www.eliseparts.com/shop/index.php?
Anti rattle pads; www.eliseparts.com/shop/index.php?
Anti Squeal pads and paste; www.eliseparts.com/shop/index.php?
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