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Brake pads recommendations please? #1635449
11/09/2019 19:36
11/09/2019 19:36
Joined: Mar 2015
Posts: 33
Sheffield, uk
M
Merlin_Cat Offline OP
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Merlin_Cat  Offline OP
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M

Joined: Mar 2015
Posts: 33
Sheffield, uk

Hello all,

I’ve got an R reg 2 litre, 20v turbo and I’ve got horrible squeaky front brakes. Is there any particular brands anyone would recommend please?

I’m taking the car on a 3,000 mile round trip to Southrrn Spain shortly so am planning to change the pads next week.

Thanks

Re: Brake pads recommendations please? [Re: Merlin_Cat] #1635450
11/09/2019 20:16
11/09/2019 20:16
Joined: Dec 2005
Posts: 3,681
Pothole City
GrahamL Offline
Forum is my job
GrahamL  Offline
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Posts: 3,681
Pothole City
Genuine Fiat pads... nothing else has the double chamfer design specifically for reducing squeal, eg. :

https://www.ebay.co.uk/itm/FIAT-COU...E-Front-Brake-Pads-77362227/163633388524

You could even try a Fiat dealer, I think we found a few years back that they've moved the coupe pads to some kind of "vintage" range and so had heavily discounted the price.

Re: Brake pads recommendations please? [Re: GrahamL] #1635451
11/09/2019 20:57
11/09/2019 20:57
Joined: Apr 2015
Posts: 521
Sunny Ayrshire
ScouseCoupe Offline
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ScouseCoupe  Offline
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Enjoying the ride

Joined: Apr 2015
Posts: 521
Sunny Ayrshire
Originally Posted by GrahamL
Genuine Fiat pads... nothing else has the double chamfer design specifically for reducing squeal, eg. :

https://www.ebay.co.uk/itm/FIAT-COU...E-Front-Brake-Pads-77362227/163633388524

You could even try a Fiat dealer, I think we found a few years back that they've moved the coupe pads to some kind of "vintage" range and so had heavily discounted the price.


Or Magneti Marelli which are same as the Fiat ones. Part number 363916060107. Normally around £40 to £50 a set.


1999 Speed Red 20VT ( Standard & Stock )
Re: Brake pads recommendations please? [Re: Merlin_Cat] #1635458
11/09/2019 22:54
11/09/2019 22:54
Joined: Dec 2005
Posts: 3,681
Pothole City
GrahamL Offline
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GrahamL  Offline
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Joined: Dec 2005
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Pothole City
The Magneti Marelli pads I've seen that claim to be "OEM" spec. for the coupe don't have the unique chamfer that's present on the proper Fiat pads, which is specifically designed to reduce squeal.

Re: Brake pads recommendations please? [Re: Merlin_Cat] #1635459
11/09/2019 23:16
11/09/2019 23:16
Joined: Dec 2005
Posts: 7,245
Lightwater, Surrey, UK
DaveG Offline
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DaveG  Offline
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Joined: Dec 2005
Posts: 7,245
Lightwater, Surrey, UK
Are you sure about that Graham? Here's a pic of a set of MM pads that I have, Fiat p/n 71770978 from their "value" range. The pads have the chamfered edge, but as the pads wear, that chamfer will disappear? Or do you mean some other chamfer?

I get horrendous squeal from the brembos on my Plus under light braking (but not with harsh braking, but I tend not to do that for fear of being rear-ended). I was told it was due to non-OE discs, so I got a proper (drilled) OE set...still the same with 2 different pad makes. I haven't tried the MMs yet because of the normal corrosion under the pad guides requiring some filing/grinding down of the edge of the pads before they will fit. By contrast, my Porto 20vt brakes are completely silent, but that has refurbed brembos (so that pads fit properly) and EBC YellowStuff pads. I think the squealing is a combination of the pad guide corrosion causing the tight fit of pads, and pad make - with harder pads making the most noise. But as ever, everyone's experience seems to differ...

Attached Files
20190911_225937.jpg (98 downloads)

1996 Portofino 20vt & 2000 Pearl White Plus
1985½ & 2016 2017 Fiat 124 Spider + XF Sportbrake
Re: Brake pads recommendations please? [Re: Merlin_Cat] #1635461
11/09/2019 23:27
11/09/2019 23:27
Joined: Mar 2015
Posts: 33
Sheffield, uk
M
Merlin_Cat Offline OP
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Merlin_Cat  Offline OP
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M

Joined: Mar 2015
Posts: 33
Sheffield, uk
Thanks for your replies. Mine has the brembo callipers and is also fine when braking at speed but awful in town.

I think the discs would be the proper ones as my dad bought the car new and then I’ve had it since he’s not allowed to drive any more - due to age

Re: Brake pads recommendations please? [Re: Merlin_Cat] #1635462
11/09/2019 23:32
11/09/2019 23:32
Joined: Dec 2005
Posts: 7,245
Lightwater, Surrey, UK
DaveG Offline
Club Member 311
DaveG  Offline
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Joined: Dec 2005
Posts: 7,245
Lightwater, Surrey, UK
Checking the Fiat OE pads, they seem to have different chamfers on each side of the same pad? Or just a trick of the light? Reagrdless, the wearing of the pad means the chamfers will disappear over time, so is the fix to periodically remove the pads and create your own chamfers? Or is it to do with the padding material on the back side...?


1996 Portofino 20vt & 2000 Pearl White Plus
1985½ & 2016 2017 Fiat 124 Spider + XF Sportbrake
Re: Brake pads recommendations please? [Re: Merlin_Cat] #1635464
12/09/2019 00:55
12/09/2019 00:55
Joined: Mar 2007
Posts: 10,812
Auld Reekie
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Posts: 10,812
Auld Reekie
The chap I always used to take my 20vt to said the squeal was due to the eradication of asbestos used in the pad. The replacement material surfacing wore off it would often produce the annoying squeal.

When I kept moaning at him about it he stopped using Delphi pads and put in a set of Ferodo - they've been fine ever since!



Thanks again, Photobucket...
Re: Brake pads recommendations please? [Re: Merlin_Cat] #1635471
12/09/2019 08:23
12/09/2019 08:23
Joined: Dec 2005
Posts: 3,681
Pothole City
GrahamL Offline
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GrahamL  Offline
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Pothole City
Yes the Fiat pads have a different chamfer on each edge, with a unique diagonal chamfer on one side specifically to stop the squeal and it works. They need to be fitted a specific way around due to this also, so there are arrows pointing upwards on rear of each pad.

click to enlarge

I've found the type of discs don't make much if any difference to the squeal. Shims or anti-squeal compound on the rear of the pads help a bit (maybe 20% reduction) but by far the biggest improvement (90% reduction) is using those specific Fiat pads due to the unique chamfer design shifting the vibration force along that diagonal edge.

Re: Brake pads recommendations please? [Re: Merlin_Cat] #1635472
12/09/2019 10:00
12/09/2019 10:00
Joined: Dec 2005
Posts: 7,245
Lightwater, Surrey, UK
DaveG Offline
Club Member 311
DaveG  Offline
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Forum is my life

Joined: Dec 2005
Posts: 7,245
Lightwater, Surrey, UK
The official brembo pads (P 23 074) look much like the MM pads with equal chamfers both sides and no directional arrow...click to enlarge


1996 Portofino 20vt & 2000 Pearl White Plus
1985½ & 2016 2017 Fiat 124 Spider + XF Sportbrake
Re: Brake pads recommendations please? [Re: Merlin_Cat] #1635473
12/09/2019 10:23
12/09/2019 10:23
Joined: Nov 2006
Posts: 1,565
Melbourne, Australia
Scuderia Offline
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Scuderia  Offline
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Joined: Nov 2006
Posts: 1,565
Melbourne, Australia
I like TRW pads as OEM replacements. Pickings are slim in Australia so I had to match up GDB1519 listed for 147 GTA. I use these as road pads, they do not have the bite of race pads however they are OK on a track, never had any fade or squeaking.

picture

Re: Brake pads recommendations please? [Re: Merlin_Cat] #1635474
12/09/2019 10:44
12/09/2019 10:44
Joined: Dec 2005
Posts: 3,681
Pothole City
GrahamL Offline
Forum is my job
GrahamL  Offline
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Joined: Dec 2005
Posts: 3,681
Pothole City
Actually that direction arrow on the rear of the Fiat pads may refer to the direction of rotation of the disc, so should be pointing down rather than up on the coupe as the caliper is at the front of the wheel, but it's explained in the booklet that comes in the box anyway.

Re: Brake pads recommendations please? [Re: Merlin_Cat] #1635477
12/09/2019 11:15
12/09/2019 11:15
Joined: Dec 2005
Posts: 7,245
Lightwater, Surrey, UK
DaveG Offline
Club Member 311
DaveG  Offline
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Joined: Dec 2005
Posts: 7,245
Lightwater, Surrey, UK
And those TRW pads show yet another chamfer variation, perhaps it's the "angled" chamfer that is the key?


1996 Portofino 20vt & 2000 Pearl White Plus
1985½ & 2016 2017 Fiat 124 Spider + XF Sportbrake
Re: Brake pads recommendations please? [Re: Merlin_Cat] #1635479
12/09/2019 12:17
12/09/2019 12:17
Joined: Dec 2005
Posts: 3,681
Pothole City
GrahamL Offline
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GrahamL  Offline
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Joined: Dec 2005
Posts: 3,681
Pothole City
Yes it's the diagonal chamfer that does it... because the brake pistons are different sizes the force presumably isn't completely even against the back of the pad so with light braking one edge of the pad can vibrate against the disc more than the other edge and that causes the squeal. With hard braking both edges are tighter against the disc so no vibration/squeal. Making the chamfer diagonal would mean a much smaller contact area for the vibration spot, so less squeal.

The pad material also plays a role, the slightly softer material makes less squeal but more brake dust, harder material more squeal but less dust. I've tried loads of combinations of discs and pads over the years (Tarox, Mintex, Pagid, Brembo, Fiat you name it) and by *far* the best way to reduce squeal is using those original Fiat pads with any type of discs, especially if the pad guides aren't completely even due to corrosion as is the case on nearly all coupes now.

Even with perfect calipers that allow the pads to fit without any grinding of the edges you can still get horrendous squeal if using the "wrong" pads. I had brand new brembo calipers fitted to my first coupe after the fiat dealer scraped the hell out of the original ones when fitting my replacement engine and even with those calipers and shims + anti squeal compound I was still getting squeal when using some combinations of 3rd party discs + pads.

Re: Brake pads recommendations please? [Re: GrahamL] #1635492
12/09/2019 17:37
12/09/2019 17:37
Joined: Jan 2006
Posts: 9,879
SW London
suba Offline
Je suis un Coupé
suba  Offline
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Joined: Jan 2006
Posts: 9,879
SW London
I found another way of curing it.... give the brakes an utter hammering for a good 5 - 10 mins. That usually did the job for about a week or so! ;-)


Dave - be really careful with EBC Yellows - I've had a set crumble to bits when I took them out - and pad coming away from plate also.... might have just had a bad batch, but I'll never buy another set of EBC's again after that.


Rotary fun - 370 bhp per ton. GT30's are small you know?!??!?!?!
Re: Brake pads recommendations please? [Re: GrahamL] #1635494
12/09/2019 17:48
12/09/2019 17:48
Joined: Apr 2015
Posts: 521
Sunny Ayrshire
ScouseCoupe Offline
Club member 1433
ScouseCoupe  Offline
Club member 1433
Enjoying the ride

Joined: Apr 2015
Posts: 521
Sunny Ayrshire
Originally Posted by GrahamL
The Magneti Marelli pads I've seen that claim to be "OEM" spec. for the coupe don't have the unique chamfer that's present on the proper Fiat pads, which is specifically designed to reduce squeal.


Well I get zero squeal from the MM pads in all types of driving. They last well too so far.


1999 Speed Red 20VT ( Standard & Stock )
Re: Brake pads recommendations please? [Re: Merlin_Cat] #1635616
18/09/2019 18:21
18/09/2019 18:21
Joined: Dec 2005
Posts: 1,268
Kent
Submariner Offline
My job on the forum
Submariner  Offline
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Joined: Dec 2005
Posts: 1,268
Kent
I've had OE, MM, Brembo, Mintex etc. Found that on fitting most if not all have squealed some more than others; but this goes away after some mileage, use MTech discs.

Re: Brake pads recommendations please? [Re: Merlin_Cat] #1635619
18/09/2019 19:49
18/09/2019 19:49
Joined: Mar 2015
Posts: 33
Sheffield, uk
M
Merlin_Cat Offline OP
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Merlin_Cat  Offline OP
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M

Joined: Mar 2015
Posts: 33
Sheffield, uk
Good evening, thanks for all the responses. I’ve been doing some research but am a bit confused. When I’m looking should I be looking at Fiat brake pads, or Brembo brake pads?

I’ve looked for Fiat dealerships but all the ones I’ve contacted don’t do spares and are really just car sales.


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