Freelander 1 Front brake squeal

[kernowsvenski]

Arrive tomorrow. Fit at weekend.
Yours needed to be done last month

Longer ago than that I'd say

 

[kernowsvenski]

So shiny

View attachment 345464

Handed discs. Must get right way around!

Wow. No instructions and many you tubes that contradict !!

Most say slots sloping to rear of car.
Some say slots facing forward to cut into the pad in direction of travel !!


Anyone have definitive answer please?

From a completely unscientific, uneducated, uniformed, but ocd point of view, that looks like it should go on the off side to me. It would appear back to front on the near side I reckon.

 

[andyfreelandy]

So according to supplier they should be as red stripes. So the one in the photo is fitted wrong.

If I understand the majority replies above, this would mean the opposite to the views presented.

Am I understanding correctly??

 

[xDParis64]

View attachment 345529
So according to supplier they should be as red stripes. So the one in the photo is fitted wrong.

If I understand the majority replies above, this would mean the opposite to the views presented.

Am I understanding correctly??

Seems they want it facing the front of the car... beats me as to why, but I'd go with what they say, they manufacture them after all, not me

 

[andyfreelandy]

New vented, grooved discs fitted. Ceramic grease where needed. All brake dust cleaned out. Wheels cleaned too !!

See how it goes. Was quiet on test drive. Need to bed them in for a few hundred miles.

 

[Nodge68]

New vented, grooved discs fitted. Ceramic grease where needed. All brake dust cleaned out. Wheels cleaned too !!

See how it goes. Was quiet on test drive. Need to bed them in for a few hundred miles.

I like drilled and grooved rotors, as the "bite" better than plain rotors.
I've always fitted them to our VW and Audi vehicles, as those always seem to have rather dead brakes. They are noisier than plain rotors, often causing a audible buzzing or fast vibration in the pedal under heavier braking, but that's a small compromise for better brake response.

 

[freelounger]

I can't believe you've fitted the very same ebay special discs as mine this week.
I've had grooved and dimpled discs on another car and, while you can hear the sound they make, it isn't irritating and the brakes feel more "immediate." Which I think will be a good upgrade for the freelander. Although the kit that was on there was in such poor condition that even a return to stock components would have been a massive improvement.

 

[xDParis64]

Well there's only one way to know which way around is better now...

Line up on the start line...!

 

[pwood999]

Not based on any fact, but my guess would be with grooves slanted towards rear of car, then the inner end hits the pad first & at slightly slower rotational speed. Maybe less pad impact, therefore less noise & pad wear ??

Only real way to tell would to use a Tapley Meter to measure the braking deceleration, and then after a few weeks/months measure the pad wear. Once you have those figures swap them round, do the same tests. You might be the first person with the definitive answer.

Found this site which seems to explain the direction of the vanes is more important. But as you said lots of contradictory info out there.

 

[freelounger]

Although, if I was given strong evidence that mine are the wrong way around, I really wouldn't be bothered to take them off and refit them.

“It does not matter how slowly you go as long as you do not stop.” – Confucius

 

[kernowsvenski]

Too much conflicting info. I say go with what the specific manufacturer of the disks you have says.

 

[andyfreelandy]

Indeed.
The only useful advice I have found is the cooling vanes direction is important and the photos in the post above with curved grooves breaking out of the edge require a specific direction. The ones I fitted did not have a groove that cut the edge of the disc.

 

[kernowsvenski]

Indeed.
The only useful advice I have found is the cooling vanes direction is important and the photos in the post above with curved grooves breaking out of the edge require a specific direction. The ones I fitted did not have a groove that cut the edge of the disc.

How are your's performing Andy? I have the same ones in my Ebay basket and I'm poised to "buy now"

 

[andyfreelandy]

Still quiet, that's the main thing !!

No noticeable increase in noise and brakes work fine. Not had any 'performance braking' yet because I don't want to glaze these as well !!

 

[kernowsvenski]

Still quiet, that's the main thing !!

No noticeable increase in noise and brakes work fine. Not had any 'performance braking' yet because I don't want to glaze these as well !!

Good stuff. Have you noticed any improvement over what I have always felt are fairly mediocre brakes on the FL1

 

[andyfreelandy]

Not yet but not used in anger.

Never had worries about brakes on the F1.

Check the calipers are free and slides are free as this reduces brake pad force applied.

 

[kernowsvenski]

Not yet but not used in anger.

Never had worries about brakes on the F1.

Check the calipers are free and slides are free as this reduces brake pad force applied.

I've never had any worries. I've just always felt they are not as good brakes on other vehicles I've driven

 

[kermit_rr]

Grooves on a disc are mostly cosmetic. If the vents are directional then the idea is to pull air from the centre of the hub to the outer edge as per the pic in post 29 above. The direction of any groves does not matter

 

[freelounger]

I've never had any worries. I've just always felt they are not as good brakes on other vehicles I've driven

Given the diameter of the discs vs the diameter of the wheel and the weight of the vehicle, they seem rather under-specified. The 2001 mini, for instance (he says, looking outside for an example) is several hundred kilos lighter, with smaller wheels but bigger discs, and the demands on it are not so high (eg no towing, not much load capacity).