Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: bigdods on 09 September 2009, 11:43:01

Title: Odd noise, binding brake or something else ?
Post by: bigdods on 09 September 2009, 11:43:01

When the car is moving I get a kind of shush-shush-shush noise but it 'feels' like there is a grinding element in the noise too. Hope this is making sense. I can feel slight vibration through the floorpan when driving. Its very quiet but always there. Worse when cold.

Doesnt seem to change when going around corners or braking.

I'm thinking possibly a wheel bearing is on the way out , or maybe a binding brake pad. No obvious scoring or discolouration of the brake disks.

Am I looking at the right things or is there something else I should check ? Hoping its not the diff!

Cheers

Dodsy

Title: Re: Odd noise, binding brake or something else ?
Post by: smokingomega on 09 September 2009, 18:06:20

Maybe it could be the propshaft centre bearing???

Title: Re: Odd noise, binding brake or something else ?
Post by: kris on 09 September 2009, 18:51:06

Quote

When the car is moving I get a kind of shush-shush-shush noise but it 'feels' like there is a grinding element in the noise too. Hope this is making sense. I can feel slight vibration through the floorpan when driving. Its very quiet but always there. Worse when cold.

Doesnt seem to change when going around corners or braking.

I'm thinking possibly a wheel bearing is on the way out , or maybe a binding brake pad. No obvious scoring or discolouration of the brake disks.

Am I looking at the right things or is there something else I should check ? Hoping its not the diff!

Cheers

Dodsy

let me know when you find out what it is. i have the same problem. have stripped and cleaned the brakes, but it's still there. is now turning into a bit of a whine. really p'in me off now  :( :(

Title: Re: Odd noise, binding brake or something else ?
Post by: Omegatoy on 09 September 2009, 19:21:50

i would vote for tyres!!!!
they make this kind of noise quite frequently and its the last thing anyone looks at as they normally just check the tread depth!!!

Title: Re: Odd noise, binding brake or something else ?
Post by: sneakypenguin on 09 September 2009, 20:25:19

as above, could be tracking out or a weight in the wheel itself gone

Title: Re: Odd noise, binding brake or something else ?
Post by: Agemo on 09 September 2009, 20:38:32

I would try letting it roll slowly down a hill, with the engine stopped, you should have a better chance of tracing it. Hard to describe a noise I know, but could it be the disc rubbing on the shield?

Title: Re: Odd noise, binding brake or something else ?
Post by: bigdods on 10 September 2009, 09:58:41

Thanks for the ideas , new dampers going on the back on Monday so a good opportunity to look a bit deeper into this. I will report back when I know more !

Title: Re: Odd noise, binding brake or something else ?
Post by: StephenAtDenaploy on 15 September 2009, 22:16:35

I have the same thing.  I had to replace both the rear wheel barings to get it through the MOT and it still hasn't fixed it.

The main trouble is that when the car is on the ramp and not under load, there is absolutely no noise.  Very hard to diagnose.  Thinking of replacing the differential bearings next.

Any further thoughts much appreciated?

Title: Re: Odd noise, binding brake or something else ?
Post by: iainb on 15 September 2009, 22:38:47

Increase your tyre pressure's to 40 psi and see if the noise goes away.
If it doesnt it's not tyres !

Title: Re: Odd noise, binding brake or something else ?
Post by: eddie on 16 September 2009, 00:13:51

Dont forget Diff. output bearings.

eddie

Title: Re: Odd noise, binding brake or something else ?
Post by: bigdods on 16 September 2009, 15:48:31

Update: Still no idea whats up. New rear dampers fitted. No noise from anything just spinning the wheels so *possibly* not a wheel bearing.

Its not the handbrake or shoes
Its not the brake pads, calipers or disks
tried tyres at 45 psi , 40 psi and 35psi no difference
No wheel weights missing, no vibration so not wheels/tyres

Its now a constant rumble but very very quiet, can barely be heard when driving.

I'll just wait for it to get a bit noisier so its easier to diagnose I guess  :-/

Title: Re: Odd noise, binding brake or something else ?
Post by: bigdods on 16 September 2009, 15:51:29

Quote

Dont forget Diff. output bearings.

eddie

How do you check them ?

Title: Re: Odd noise, binding brake or something else ?
Post by: Omegatoy on 16 September 2009, 20:55:55

is it a manual box? if yes dmf could be causing it :-?