jreynish

iTrader: (2)

I have a 1990 Black TII and my rear brakes make a rubbing sound not a squeeling like a grinding sound but not really! and i was simply wondering what it could possibly be! i was wondering if the previous owner got the brakes loosned in the back! but i don't know what! they seem to be ok! pads and all! But not for sure! haven't gotten them checked out yet!
Any suggestions on what it would be would be greatly apreciated!

Cheers!

does it make the sound when you apply the brakes or when you are off the brakes? and is the sound a metallic grinding sound?

jreynish

iTrader: (2)

it is more when i am letting off and yes it does sound like a grinding sound! metallic!

Cheers!

you pads are probably worn and are a little to thin now... the warning clip will make contact with the rotor which will make a metallic squeel sound. Means you need new pads... Don't let to ride for too long because the clip may start to cut into the rotor, then you need to resurface the rotors or get new ones. So get it fixed soon!

(btw i don't have an RX-7, this only comes from experience with other cars, so it might not be... but the symptoms sound like it)

maxpesce

May also be wheel bearings if it is louder when you are off the brake and quits when the brake is applied.

djantlive

Get it inspected at a good shop that you trust. It could be worn pads. If that's the case, don't drive more than 50-70 mi or you could ruin your rotors.

Most shops don't know the min spec of the rotor and will tell you to get new rotor so they make more money. The min rotor specs are in the shop manual available for download on mazdaperformance.com. Have them measure the rotor thickness (thicker is better). The pads need to be replaced if it's less than 2-3mm of pad material (not including the backing plate that the pad material is on).

When in doubt, go to a couple of shops for second opinion. One shop told me that I needed all rotors and pads replaced, costing >$1k! All I needed was just from new pads up front (did it myself for $40). Never visited that shop again!

Street King

all rotors should be-reserfaced after full use of pads. you want the contact to be as smooth as possible and plus you get a better grip.

Ned M

iTrader: (6)

You can get grinding sound too if the rear pads were installed without the V-clips that hold them slightly off the rotor surface. A common mistake, but after a few thousand miles the pads have been overheated and glazed, start to fall apart, and make terrible noise. Been there.

Have yours looked at soon.

jreynish

iTrader: (2)

All right will do! I have an apointment on friday!!! and they took a quick look and they said that everything is new! on the rear!!! but they will take a closer look!
THank you for all yoru help guy's
I know i am a NEWBY but you guy'd make being a 2nd time rex owner worth whilE!!!