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        General >> Problems >> Cosworth's rear swaying when accelerating
        
(Message started by: Cosray - The Hague - Holland on Jul 21^st, 2006, 12:46pm)

Title: Cosworth's rear swaying when accelerating
Post by Cosray - The Hague - Holland on Jul 21^st, 2006, 12:46pm

When accelerating my Cosworth the rear tends to sway to the right, as if it has steering properties!

Next the car starts to sway and rock which at 50-100 miles is not funny. This is amplified carrying 3 pasengers, probably because I am generating more power then.

Breaking hard is OK and straight.
New tyres sice 1/2 year; pressured according to manual.

I did not have a chance to look under the car yet.
Is this caused by a bad shock?
A bad bearing? Had one rear bearing replaced last year.
Rubbers? Bushing?

Heard a squeaking noise some weeks ago from the rearleft; thought it was a hanging brakepad. Is this related?

Any clues before I see Ford on Monday?
Ray

Title: Re: Cosworth's rear swaying when accelerating
Post by Highlander on Jul 21^st, 2006, 2:50pm

on 07/21/06 at 12:46:52, Cosray - The Hague - Holland wrote:

This is amplified carrying 3 pasengers, probably because I am generating more power then.

Like the Flintstones?? Are they pedalling? ;D

Sounds like a bush away on the arm, causing a slight toe out on the wheels

Title: Re: Cosworth's rear swaying when accelerating
Post by Snoopy on Jul 22^nd, 2006, 6:31am

If you had a squeaking then look at the wheel bearings see THIS (http://www.fordscorpio.co.uk/rhubs.htm)

Title: Re: Cosworth's rear swaying when accelerating
Post by Cosray - The Hague - Holland on Jul 22^nd, 2006, 11:45pm

Thanks guys for your suggestions. Sounds like I have a rear bearing problem.
I will get back to you after I see Fords on Monday.
Ray

Title: Re: Cosworth's rear swaying when accelerating
Post by howiedintheplace on Jul 22^nd, 2006, 11:57pm

Things to check.

Wheel bearings, arm bushes onto cross member, diff mount to floor & crossmember to floor.

If any one of the above items has worn then it will cause you problem.

Title: Re: Cosworth's rear swaying when accelerating
Post by Cosray - The Hague - Holland on Jul 24^th, 2006, 9:45pm

Yes, it was the left rear wheel bearing that's gone.

It had worn so much the wheel could be moved 1-2 centimetres sideways, causing the swaying. The swaying had also worn the brake pads, as these, when braking, tried to straighten and align the wheel.

It required a new bearing kit, a flange, seals, brake pads and other stuff in parts, totalling € 540 including one hour labour as that's fixed for this repair (incl. 19% VAT)

One hour of labour these days in our West country costs € 106 incl. VAT.

Also it seemed to have worn the tyre very much while swaying; must have a look at that later and replace it.

Recap: Squeaking sound (instead of a rumbling, humming sound) + wandering of the rear when accelerating = worn bearings. Be quick about it!

Title: Re: Cosworth's rear swaying when accelerating
Post by Kjetil S on Jul 25^th, 2006, 5:33am

1-2cm :o :o :o

you were lucky that it didn't seize up on you...

Btw, remember to replace both rear tyres when you're at it, or you could get some interesting effects again ;)