Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: Martin_1962 on 20 September 2009, 15:40:06

Title: Unstable under braking.
Post by: Martin_1962 on 20 September 2009, 15:40:06
The car pulls to the right under braking, I have to turn the wheel slightly to the left.

Any ideas please?

New steering idler. drop links, and wishbones in the last year.

Buypartsbuy wishbones and they feel a bit floppy on the front bushes already - but that may be OK
Title: Re: Unstable under braking.
Post by: MickAP on 20 September 2009, 15:48:46
Not sure it's related but mine did a hell of a lot shaking when braking from above 50mph, warped or corroded front discs maybe. Are both of yours ok?Mine were replaced and it solved the problem.

Mick
Title: Re: Unstable under braking.
Post by: dbug on 20 September 2009, 16:01:19
Seized slides or sticky/lazy brake calliper

Assumed tyre pressures ok ;)
Title: Re: Unstable under braking.
Post by: Martin_1962 on 20 September 2009, 17:33:09
Calipers sliding OK. May regrease.

Not sure on pressures but were OK last week.

Idler arm however moved vertically 3mm or 4mm as I was pushing & pulling on the passenger wheel with steering locked.
Title: Re: Unstable under braking.
Post by: Omegatoy on 20 September 2009, 18:02:22
Quote
Calipers sliding OK. May regrease.

Not sure on pressures but were OK last week.

Idler arm however moved vertically 3mm or 4mm as I was pushing & pulling on the passenger wheel with steering locked.

oops!!! should be no movement vertically!!! try puting it on full lock and then gently turning the wheel a little more while watching the idler arm if it moves vertically as you apply the pressure and release it then idler or pin is worn!!
Title: Re: Unstable under braking.
Post by: Martin_1962 on 20 September 2009, 18:17:48
Quote
Quote
Calipers sliding OK. May regrease.

Not sure on pressures but were OK last week.

Idler arm however moved vertically 3mm or 4mm as I was pushing & pulling on the passenger wheel with steering locked.

oops!!! should be no movement vertically!!! try puting it on full lock and then gently turning the wheel a little more while watching the idler arm if it moves vertically as you apply the pressure and release it then idler or pin is worn!!


Perhaps it was a dodgy one :(

I think my test was similar it was up and down.

Just what I need  - more expense :( :(
Title: Re: Unstable under braking.
Post by: cem_devecioglu on 21 September 2009, 00:28:04
check list

- tire pressures
- shocks
- pad thickness,surfaces
- discs surfaces
- front geometry


Title: Re: Unstable under braking.
Post by: VXL V6 on 21 September 2009, 11:30:26
Quote
The car pulls to the right under braking, I have to turn the wheel slightly to the left.

Any ideas please?

New steering idler. drop links, and wishbones in the last year.

Buypartsbuy wishbones and they feel a bit floppy on the front bushes already - but that may be OK

Same as on mine, complete ****, in the process of getting my original GM ones re-bushed then they will be melted down to make a Hyundia
Title: Re: Unstable under braking.
Post by: KillerWatt on 21 September 2009, 11:40:46
Quote
Buypartsbuy wishbones and they feel a bit floppy on the front bushes already - but that may be OK
The first lot of wishbones I got for ours from Bpb were sloppy as soon as they were fitted, as VXL said...complete crap.

Sent them back and got a set from Camberley Auto Factors, made by Delphi Lockheed and blatantly obvious they were a much better fit as soon as they were bolted up.

First thing I'd do with the fault you describe is find a local friendly garage and get them to put the front wheels in the rollers and measure the braking force in order to determine where to start looking.

Title: Re: Unstable under braking.
Post by: TheBoy on 21 September 2009, 12:47:34
Quote
Calipers sliding OK. May regrease.

Not sure on pressures but were OK last week.

Idler arm however moved vertically 3mm or 4mm as I was pushing & pulling on the passenger wheel with steering locked.
Thats knackered then
Title: Re: Unstable under braking.
Post by: bob.dent on 21 September 2009, 13:42:44
Quote
The car pulls to the right under braking, I have to turn the wheel slightly to the left.

Any ideas please?

New steering idler. drop links, and wishbones in the last year.

Buypartsbuy wishbones and they feel a bit floppy on the front bushes already - but that may be OK

I had exactly the same problem recently Martin. I Had new wishbones fitted a few months ago and it turned out they were the cause of the problem. Had another set of new ones fitted and problem solved.