Mazda Rotary Club

Cars by Model Type => 3rd generation RX-7's => Topic started by: welshrx-7 on April 27, 2008, 11:58:01 PM

Title: knocking sound when braking
Post by: welshrx-7 on April 27, 2008, 11:58:01 PM
when i am coming to a stop i can here a knocking noise the pads got a bit of life still on them. the pedal seems quite stiff as well. anyone had this problem before any help would be great.
Title: knocking sound when braking
Post by: SiH on April 28, 2008, 08:24:39 AM
Could well be a stck piston in the caliper. Could also be a variety of other things, but pistons, and then bushes would be my first ports of call.
Title: knocking sound when braking
Post by: Bobbit on April 28, 2008, 09:38:51 AM
where is the sound comming from bud? Front, back etc??
Title: knocking sound when braking
Post by: Nik da Greek on April 28, 2008, 12:48:54 PM
Bushings ?
Title: knocking sound when braking
Post by: Squallai on April 28, 2008, 06:02:36 PM
Probably the Bushes mate, but surely have a look of everythings.
Any noise when reversing?
Title: knocking sound when braking
Post by: Bobbit on April 29, 2008, 09:46:22 AM
if you get the same noise when going over bumps then it\'s def the bushes
Title: knocking sound when braking
Post by: Initial-D on April 29, 2008, 10:11:55 AM
Make sure you haven\'t lost a bolt in one of the caliper mounts, somehow one came out of a rear and when ever I pressed the brakes I\'d get a clonking noise! Best get it fixed ASAP!
Title: knocking sound when braking
Post by: welshrx-7 on May 07, 2008, 06:09:03 PM
thanks ill have a look after work 2moz. bought it as a weekend car but cant stop driving it. fuel is shocking compared to my last car focus 1.8 lol.
Title: knocking sound when braking
Post by: clive on May 07, 2008, 06:38:34 PM
Quote from: welshrx-7;497142thanks ill have a look after work 2moz. bought it as a weekend car but cant stop driving it. fuel is shocking compared to my last car focus 1.8 lol.


If you can\'t find anything loose etc and the knock is more of a "click" only once when you apply the brake then it could well be just the pads moving around very slightly in the calliper.

Providing the retaining pins are all there intact this will only cause annoyance and will not be a danger.  

Hope this helps
Title: knocking sound when braking
Post by: Gatesy on May 10, 2008, 05:06:48 PM
Sounds daft dude but also check to see if the backbox of your exhaust has any play in it.  I had a weird knocking noise and after fiddling about banged my head on the exhaust and realised that it had to much movement in it and was knocking against the chassis.
Knocked up a very quick bracket and no more knocking.