Warped disc and other myths

tbro · Postby **tbro** » Wed Nov 11, 2015 9:46 pm

http://www.stoptech.com/technical-suppo ... ther-myths

gslender · Postby **gslender** » Thu Nov 12, 2015 3:10 am

Good article

Sent from my iPhone using Tapatalk

!JonZap! · Postby **!JonZap!** » Mon Dec 07, 2015 12:18 pm

Here are a few additional youtube videos about brakes

https://www.youtube.com/user/BrakesDirect/videos

MattR · Postby **MattR** » Mon Jan 25, 2016 6:09 pm

Well the author has never dríven an AU to FG series Falcon then has he??????

davekmoore · Postby **davekmoore** » Mon Jan 25, 2016 7:25 pm

About a third of trade-ins I drive display some kind of wheel speed related wobble from the front wheels on braking. Can't say I'm expert enough to always be able to exactly diagnose it.

Strangely, Mazda 323s seem to be immune.

rascal · Postby **rascal** » Tue Jan 26, 2016 9:21 pm

davekmoore wrote:Strangely, Mazda 323s seem to be immune.

They don't go fast enough to heat the rotors when braking...

davekmoore · Postby **davekmoore** » Wed Jan 27, 2016 11:17 am

Very true

StillIC · Postby **StillIC** » Sat Jan 30, 2016 11:25 am

MattR wrote:Well the author has never dríven an AU to FG series Falcon then has he??????

I have a BA Falcon and when I bought it, 3 months ago, the brakes were very 'pulsey'. But the more I drove it the better it became, to a point where I can now barely notice any pulsing. During that time I also had the rear wheels off and cleaned the rear rotors and hub faces.

The Falcons have an extra problem compared to most cars. That is, the wheel is not only clamping the brake rotor to the hub, but also a steel shield between the wheel and the rotor. Rust develops between the rotor and the hub, *and* the rotor and the shield, potentially redistributing clamping forces even though the shield does not affect the rotor to hub interface/alignment.

There is a guy on the one of the Ford forums who only owns Falcons and runs Falcon taxis...it seems he is *the* gun when it comes to Falcons, their problems and the solutions. He says exactly what the video says...get a wire brush and clean the hub face, clean the rotors, and I would add, clean the dust shields. The author/presenter is correct, I believe.

MattR · Postby **MattR** » Thu Feb 11, 2016 7:26 pm

I've owned and XD as well as AU, BF and FG XR Utes and had 2xBF RTV utes as work cars, never had the "warped" rotor problem, and the RTV's would have metal to metal on the front pads in under 10,000km for some of the work I was doing, which was road condition surveys in urban areas, harder than courier or taxi work on cars when videoing road networks.

I think it was a problem that was too easily blamed on the rotors and lazy people looking for a quick fix rather than the actual problem.

As for the problem of having to hold the rotor to the hub, plenty of cars do that, and I have had no dramas with rust between the faces of the surfaces causing a pulse, on my old Zed the rear brakes just slipped over the wheel studs and were located by the wheel being tightened, my S14 is also the same from memory with the slightly modded brakes it runs.

Oh, and I was being sarcastic about not having dríven the Falcons :lol: