STOUTY

Stop running the car on curry oil! Only messin, thats a strange one that never heard of a car smelling of curry. Please let me know if you get to the bottom of it.

Well, I got round to doing my front caliper since the old one kept suffering from a sticking piston. Also did all the discs and pads on the car. Which has now lead to a problem - which I believe may have been discussed before??

Basically, when I installed the new rear disc, the "wheel/disc" would spin freely, but as soon as I put on a wheel nut (to hold the disc in place) and tried to turn the disc it would stiffen up and then no longer be able to move!

After a while of head scratching and checking it wasn't the hadnbrake shoes catching on the drum section, I noticed that the backing plate that sits just behind the shoes (the rim can be see in the similar photo in this post linky) was rubbing on the back of the new disc.

If you look at the rear of the disc, there is a sunken section just after the pad face and before it drops down into the drum section. It would appear that either this "groove" is either not deep enough as the rear plate (which is definately not deformed) is rubbing in this groove. When I look at the old disc (which was installed by Lexus years ago) it has a worn groove in this sunken groove section, so its obviously a problem thats happened before.

My question is, has many other people noticed this - and if so, what is the cause/rectification. I am currently driving around with a car that has a loud scraping noise and its not nice!! I am sure over time it will wear one or the other part down enough to stop, but I wonder if Lexus slightly changed either the size of this lip on the backing plate rim, or the depth of this sunken area on the disc?

Ormi - is this something that you have ever noticed in your work?

Any help will be greatly appreciated. I am gonna give Lexus Swindon a call tomorrow (bought the parts from LexusCarParts) to see what they say.

Surely it cannot be right, as a customer would not accept this noise once driving away from Lexus if they had fitted them?

BTW - I am sure this is not the Dust plate rubbing on the disk, but it is the handbrake shoe mounting plate!

I have just fitted new rear discs today and have the exact same problem, when I investigated there where metal filings inside the drum, so odviously not the shoes binding which is what I first thought, then I noticed that the back plate rim that fits into the groove on the disc was shiny as though been rubbing, out came the angle grinder and took about 2mm all the way round the rim and as if my magic no more rubbing. Problem solved!