Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: Trothy on 15 January 2011, 14:33:01

Title: Rear suspension creaking
Post by: Trothy on 15 January 2011, 14:33:01
Hi everyone,  have noticed the rear suspension on my omega (2.2 Saloon 2001)  started creaking very noticeably over speed bumps during the recent cold snap. 

It's a bit warmer now and the creaking is not as bad but definitely still there.  If I give the car a hard push on the boot corners a pretty loud creaking noise can be heard.

Would I be right in thinking this is the rear donut bushes that need replacing?  As the car is going in for it's MOT in a couple of weeks would this likely be a fail on the MOT?

Cheers,

Allan
Title: Re: Rear suspension creaking
Post by: Entwood on 15 January 2011, 15:56:04
Quote
Hi everyone,  have noticed the rear suspension on my omega (2.2 Saloon 2001)  started creaking very noticeably over speed bumps during the recent cold snap. 

It's a bit warmer now and the creaking is not as bad but definitely still there.  If I give the car a hard push on the boot corners a pretty loud creaking noise can be heard.

Would I be right in thinking this is the rear donut bushes that need replacing?  As the car is going in for it's MOT in a couple of weeks would this likely be a fail on the MOT?

Cheers,

Allan


AFAIK the rear donut bushes can't be checked on an MOT as they are not visible ... and no dismantling is allowed .. if I'm wrong I'm sure "someone who knows" will correct me very soon .. :)
Title: Re: Rear suspension creaking
Post by: Kneepad on 15 January 2011, 21:12:09
Quote
Quote
Hi everyone,  have noticed the rear suspension on my omega (2.2 Saloon 2001)  started creaking very noticeably over speed bumps during the recent cold snap. 

It's a bit warmer now and the creaking is not as bad but definitely still there.  If I give the car a hard push on the boot corners a pretty loud creaking noise can be heard.

Would I be right in thinking this is the rear donut bushes that need replacing?  As the car is going in for it's MOT in a couple of weeks would this likely be a fail on the MOT?

Cheers,

Allan


AFAIK the rear donut bushes can't be checked on an MOT as they are not visible ... and no dismantling is allowed .. if I'm wrong I'm sure "someone who knows" will correct me very soon .. :)

I have had a failure on my TD for excessive play on a nearside donut bush. I found no evidence of this myself, so took the car to another MOT station where it passed without a mention.  :-/
Title: Re: Rear suspension creaking
Post by: feeutfo on 15 January 2011, 21:54:51
Mine failed the MOT and they where knackered. They are visible to an extent, with the car on a ramp certainly, or when jacked, by looking through the gap under the triangular plate, more obvious when looking from the direction of the rear dif, see the guide. There is a pic of donut in situ. Press the bump stop/knobly bits around the outside diameter in towards the centre of the bush, if they stay put all is well, if they fold in towards the centre to reveal a rusty mess underneath they are fubar.

As said elsewhere on here there can't be many omegas left with sound original rear donut bushes, my previous car was a 52 plate, bushes failed. Most of the cars done at Newent where facelifts post 01 at least iirc.....and all had a valid MOT.

Failed bushes front and rear, IME, are often missed by MOT inspectors, and I was actually quite pleased when mine where spotted. Tightened up the back end nicely once replaced.

Hth.
Title: Re: Rear suspension creaking
Post by: Trothy on 15 January 2011, 23:17:25
Many thanks for the info guys. 
Title: Re: Rear suspension creaking
Post by: feeutfo on 16 January 2011, 00:09:28
Quote
Many thanks for the info guys. 
Not saying your squeak is definitely rear bushes mind.

But if it's that audible I guess it should be easy to find with an assistant bumping the car while you carefully look underneath....
Title: Re: Rear suspension creaking
Post by: polilara on 16 January 2011, 09:30:07
Mine failed the MOT and they where knackered. They are visible to an extent, with the car on a ramp certainly, or when jacked, by looking through the gap under the triangular plate, more obvious when looking from the direction of the rear dif, see the guide. There is a pic of donut in situ. Press the bump stop/knobly bits around the outside diameter in towards the centre of the bush, if they stay put all is well, if they fold in towards the centre to reveal a rusty mess underneath they are fubar.

As said elsewhere on here there can't be many omegas left with sound original rear donut bushes, my previous car was a 52 plate, bushes failed. Most of the cars done at Newent where facelifts post 01 at least iirc.....and all had a valid MOT.

Failed bushes front and rear, IME, are often missed by MOT inspectors, and I was actually quite pleased when mine where spotted. Tightened up the back end nicely once replaced.

Hth.

Hello

I have same problem, the colder the louder. Where is the guide ? How to change them ?
Title: Re: Rear suspension creaking
Post by: hotel21 on 16 January 2011, 11:45:49
Quote
Hello

I have same problem, the colder the louder. Where is the guide ? How to change them ?

When at the Omega Owners Forum home menu, click on Maintenance Guides in the second section down (Omega Help).

This opens the maintenance guides so click on Maintenance Guide Index towards the top and look down through the various links, set out in relevant sections for engine, electrical, drivetrain etc etc.

In the drivetrain section, the rear subframe bush guide is the last in the suspension section.

 :y

Title: Re: Rear suspension creaking
Post by: sierrapaul on 16 January 2011, 15:06:52
if you can get a lever bar in there and theres excesive movement they will fail the mot.get under it with a can of white spray greese and spray spring mounts,shock mounts and any bushes.its where its been cold and damp and now its dry and things have got rusty most cars go like it in winter.white greese with ptfe in it is all you need
Title: Re: Rear suspension creaking
Post by: ffcgary1 on 16 January 2011, 15:25:30
This sounds like rear anti roll bar bushes are creaking due to the amount of salt put down this winter, remove the anti roll bar rubbers and clean the bar then grease the rubbers with some silicone grease and refit.. Simples. :y
Title: Re: Rear suspension creaking
Post by: feeutfo on 16 January 2011, 17:15:57
Quote
if you can get a lever bar in there and theres excesive movement they will fail the mot.get under it with a can of white spray greese and spray spring mounts,shock mounts and any bushes.its where its been cold and damp and now its dry and things have got rusty most cars go like it in winter.white greese with ptfe in it is all you need
Is White grease petro chemical based?

I'd be using something sylicon based on bushes/rubber components tbh.....?
Title: Re: Rear suspension creaking
Post by: ffcgary1 on 16 January 2011, 17:30:05
Quote
Is White grease petro chemical based?

I'd be using something sylicon based on bushes/rubber components tbh.....?
Like what i said :D
Title: Re: Rear suspension creaking
Post by: feeutfo on 16 January 2011, 17:34:50
Quote
Quote
Is White grease petro chemical based?

I'd be using something sylicon based on bushes/rubber components tbh.....?
Like what i said :D
Indeed, like wot you said.  :)  ;)