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View Full Version : Brake Shoe scraping on rear disc


Mani_CV8Z
15-09-2006, 07:04 PM
Hey guys,

i know this is a common problem with most holdens, the scraping sound when your driving slow enough to hear it. I've had it adjusted everytime i take it to holden, but it just keeps coming back... i picked the car up from servicing it today, and they basically said theres nothing you can do about it... it will always come back... is that true... is there nothing that will fix this.......PERMANENTLY???!?!?!

Appreciate some insight guys... thanks
Knight Phlier
15-09-2006, 07:14 PM
The problem is well known. If you search for Handbrake you will find heaps of threads on it - The issue stems from the Holden dealer tightening the handbrake from the lever, when they should be tightening it at the actual park brake drum in the rear wheels. Goto a local mechanic or a sponsor and they will sort you out, and it should not cost very much to fix. I had the same problem and it drove me nuts!!
Mani_CV8Z
15-09-2006, 07:24 PM
Cool thanks mate.. ill try that and see how it goes..
Y2kGoofball
15-09-2006, 07:27 PM
keep us informed!
Mine on the VX gives me the shites as I travel at around 10kph along the M4 in the right hand lane with the window down as I hear is shooosh shooosh shooosh bouncing off the concrete wall.

But mine doesnt seem to work in reverse. I apply the handbrake and try to drive and it puts up a fight, put it in reverse though and its as if theres nothing there, and I'm concerned with parking it on a downhill slope every now and then.
planetdavo
15-09-2006, 07:55 PM
Holden had some modified parts that were being installed for VY, but yours will have those already. This is common with the Banksia handbrakes. Keep up the pressure and see what happens.
Knight Phlier
15-09-2006, 08:32 PM
keep us informed!
Mine on the VX gives me the shites as I travel at around 10kph along the M4 in the right hand lane with the window down as I hear is shooosh shooosh shooosh bouncing off the concrete wall.

But mine doesnt seem to work in reverse. I apply the handbrake and try to drive and it puts up a fight, put it in reverse though and its as if theres nothing there, and I'm concerned with parking it on a downhill slope every now and then.

Yep I also found when it was not adjusted correctly the handbrake would hold more when facing down a hill rather than up. That is also fixed (Or made more tolerable) when the handbrake is adjusted at the rear wheels.
Muzzak
15-09-2006, 08:41 PM
Ditto..

Swish, Swish, Swish. I report it every time only to have it back time and time again. And they do claim the adjustments are made at the wheels. So go figure.

Had in my VTII Commodore, then my Naro. I didn't even consider that these brainiacs wouldn't have solved the problem basically 9 years on !!!

I'm thinking of getting an angle grinder out going at it brute force one of these days.

Muz
planetdavo
15-09-2006, 08:46 PM
Ditto..
I didn't even consider that these brainiacs wouldn't have solved the problem 9 years on basically !!!
Muz
Refer to the designer, PBR.
The shoe does almost a full circle as one piece within the rear disc. Combine a very minor ovality of the shoe with a very minor out of round with the disc, and there's your problem.
bpm
15-09-2006, 08:56 PM
the problem isnt the handbrake drum being out of round, drums are never perfectly round. the problem is the shoe being off centre from the last time the brake was released. no amount of adjusting will permenatly fix this. if you get the noise happening, grab the handbrake at a slow speed (bout 10-15kph). you will get an almighty thud as the shoe bites the drum but this will centre the shoe. this is a crap shoe design. they really need to be a twin shoe setup like most of the jap handbrake drums.
BearSS
15-09-2006, 10:01 PM
They had a twin shoe setup on VB-VS, no noise but the shoes ripped out when you use the park brake while doing any speed. At least the VT-VZ type works as an emergency brake (or for handbrake turns!)
clixanup
15-09-2006, 10:19 PM
There is a mod kit that the dealer can fit. It is called (oddly enough) a 'scrape kit' and consists of a couple of stiffer springs.
Y2kGoofball
15-09-2006, 10:42 PM
BPM I tried that and yes the car came to a sudden and unexpected thud but then I hads a burning smell come from the rear wheels and had a slight grinding noise, although this went away the next day. Perhaps just a combination of hot bits and attempted realignment caused it?
MonoJoker
16-09-2006, 01:54 PM
Mine does the same thing - nothing more annoying. I'll be asking PT to have a look when I get the next service done. Hopefully it can be overcome with a bit of correct adjustment at the caliper?

Cheers
LT.
bpm
16-09-2006, 02:05 PM
[QUOTE=Y2kGoofball;722681]BPM I tried that and yes the car came to a sudden and unexpected thud but then I hads a burning smell come from the rear wheels and had a slight grinding noise, although this went away the next day. Perhaps just a combination of hot bits and attempted realignment caused it?[/
forgot to say keep ur thumb on the button, and as soon as u hear the bang release the brake. the other fix is to back off the adjustment for the handbrake at the drum, but this leaves you with a long lever and a handbrake that doesnt hold as well as it should.
planetdavo
16-09-2006, 03:07 PM
the problem isnt the handbrake drum being out of round, drums are never perfectly round.
Ahhhh, read my comments again......
It's a combination of the drum AND OVALITY OF THE SHOE.
The scrape kit attempted to locate the shoe in a spot it would otherwise try to move away from slightly, to locate it in a more round (non scraping) location. The (award winning) Banksia handbrake is used because it has so few parts to the kit, it's cheaper to buy. The dual shoe setup on VB-VS isn't without it's own problems either....