steering chatter/wobble-hopefully cause found

[tomcat]

Got a weird fault on the tomcat.
Only happens when cornering hard especially with the steering is turned a lot.
Worse place it happens is at the bomb hole at snetterton
I can only describe it as bad chattering/wheel wobble through the steering -like it doesn't want to turn and transmits through the steering
Anyone got any idea's -nothing obvious appears wrong

Might be tyres -these are my first job any other ideas?


cheers
Scott

[stockcar]

worn or damaged wheel bearing, track control arm, ball joint, etc....??

[tomcat]

worn or damaged wheel bearing, track control arm, ball joint, etc....??

No there doesn't appear to be anything wrong, although I think it only started happening after I changed the lower suspension arms differant make not o.e and they are much closer to the brake discs than before - I am starting to wonder if any hard load they might touch the discs which might lead to this issue..

[blackskygtr]

Reading between the lines on your recent threads about steering issues Grip and increasing the tyre width
I have to ask the question.
When did you last have proper full 4 wheel alignment on the car?
Bad alignment can cause all of the issues you are talking about and dramtically reduce grip.

No parts out of the box will be correct and without proper laser geometry are almost impossible to set by your self
Just a thought as i have just had the skyline done and it has transformed the feel of the car.

My 2p and worth all that.

Jay

[ginger ninja]

You could possibly have a worn part in the rack, so at a certain point you can feel the play but its ok in a straight line ??
Just a thought.

[russ979]

It sounds more like you are probably in the right area with the none genuine lower arms. I have a friend that repairs Ka`s and he had the same simptom`s you`ve discribe after buying a bad batch of none genuine wishbones.

[tomcat]

Reading between the lines on your recent threads about steering issues Grip and increasing the tyre width
I have to ask the question.
When did you last have proper full 4 wheel alignment on the car?
Bad alignment can cause all of the issues you are talking about and dramtically reduce grip.

No parts out of the box will be correct and without proper laser geometry are almost impossible to set by your self
Just a thought as i have just had the skyline done and it has transformed the feel of the car.

My 2p and worth all that.

Jay

yeah had that done but tbh I wasn't impressed at all.. didn't know what they were doing only ok if they had factory settings in front of them lol.. they were suposed to be the best in the area too
I ended up having to reset the camber and alignment myself I have also now got the caster even too!
Wider tyres are simply a idea to try to go faster as with it being fwd I struggle for grip out of the corners as it got 50% more power than std


I will have it up again and see if there are any signs of disc to lower arm contact and also rack/ball joint movement

cheers
Scott

[duncan]

Could just be the wider wheels and the increased leverage on the steering arms doing it and flexing bushes, joints etc.

I presume polybushed?

[tomcat]

Could just be the wider wheels and the increased leverage on the steering arms doing it and flexing bushes, joints etc.

I presume polybushed?

not got wider wheels yet - car is fully polybushed

could also be tyres as my r888 are badly banded -so these are the first thing I need once I get paid!

[tomcat]

hopefully found the cause 8)

I have found that both front struts have play the the top mount bearings.
With jack handle under the front wheels I can move the shocks up and down about 5mm.
Never tested it before but it can't be normal, hopefully the bearings are available

cheers
scott