Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: Roger Cowley on 05 March 2010, 18:07:10

Title: Clonking noise
Post by: Roger Cowley on 05 March 2010, 18:07:10

My late dad-in-law's 1998 Omega 2.0 auto saloon emits a very loud clonk when driven over any vicious speed bump or pothole, but is otherwise well-behaved. Garage inspection has not revealed any worn bushes. Any ideas?

Title: Re: Clonking noise
Post by: mrcnc53 on 05 March 2010, 18:13:20

Try looking at the drop links to the front antiroll bar.

Title: Re: Clonking noise
Post by: miggy on 05 March 2010, 18:38:13

As mentioned.........drop links, very cheap on fleabay

Title: Re: Clonking noise
Post by: Andy H on 05 March 2010, 22:58:51

I found that the drop links rattle over little undulations.

The big clunk over roadhumps (or on vicious brake application) is usually soft wishbone bushes. One of them has a metal insert to limit the movement and when the bush wears you get metal to metal contact.

Title: Re: Clonking noise
Post by: al brown on 05 March 2010, 23:08:10

Hi, would also say drop links. Garages tend to check for front end play with the car in the air (weight off wheels) which in the case of drop links will hide the wear. Easy to change and cheap, got mine from autofactors for under £10 per side almost 5 yrs ago and still good.
Al

Title: Re: Clonking noise
Post by: TheBoy on 06 March 2010, 10:09:40

In my experience, I'm with Andy H - droplinks tend to 'rumble' on uneven surfaces, really knackered wishbone buses clonk on speedbumps.  I guess if droplinks really knackered, they may cause this?

My general advice is to look for play in wishbones and antirollbar bushes, if none found, change droplinks.

Title: Re: Clonking noise
Post by: TheBoy on 06 March 2010, 10:10:04

worth checking the springs are complete as well

Title: Re: Clonking noise
Post by: Roger Cowley on 06 March 2010, 16:24:40

Thanks to all respondents. I'm 99% certain the noise is from the front of the car, are there any "wishbones" there?

Title: Re: Clonking noise
Post by: RobG on 06 March 2010, 16:30:51

Yep, one either side

Title: Re: Clonking noise
Post by: david_omega on 06 March 2010, 16:36:46

had this on an estate never found the cause

Title: Re: Clonking noise
Post by: Welung666 on 06 March 2010, 16:40:56

Where are you Roger? Maybe someone is close by and could have a butchers for you ;)