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Technical Veering?

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Technical Veering?

edessex

edessex

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Parked in the garage
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Mar 20, 2007
Messages
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Location
Nr. Stansted Airport.
Hi all, I've noticed something a tad odd in the handling of my '94 Uno.

When I accelerate round a left bend the car pulls to the right (as in I have to steer left more to counter it), but if I then take my foot off it pulls quite sharply to the left (so I have to steer right to counter).

What could cause this?

Would a worn rubber top mount on the front suspention do this?
 
Had the tracking done a while back, could have changed now due to potholes I guess.

The reason I ask is that I think there is play in the OSF top mount, would that cause the issue or am I looking at two different things?
 
edessex said:
Hi all, I've noticed something a tad odd in the handling of my '94 Uno.

When I accelerate round a left bend the car pulls to the right (as in I have to steer left more to counter it), but if I then take my foot off it pulls quite sharply to the left (so I have to steer right to counter).

What could cause this?

Would a worn rubber top mount on the front suspention do this?
Click to expand...

Sounds like driveshaft spiders have worn a groove in the diff carriers, had this quite a few times years ago, when turning shaft moves slightly out of grooves, then tries to go back into groove, pulling car / steering to one side.

Mal
 
My Uno is now back on the road, after the rear engine mount failed, and thought I'd take the time to replace the shocks and coil springs...

Anyway, the veering is now worse than before.

I can't find any play in the wishbone bushes, the trackrod joints seem ok, and I can't see any unusual wear on the tyres.

The steering arms seem a tad notchy, but I'm guessing thats normal.
 
Is the 'control arm' the wishbone?

Had another look, with the front wheels off I tried finding any movement in the hubs but pulling on the brake disks at various points. Drivers side was all fine, no movement. But on the passenger side there is about 1mm of movement if I pull the brake disk from the bottom.
Could this be the problem?

The bearing sound fine, do I try tightening the hub nut?

I'm missing a nut from the front anti-roll bar mount, is that an issue?

Also, is there anything to check at the back of the car?

Thanks for your help guys...
 
edessex said:
Is the 'control arm' the wishbone?

Had another look, with the front wheels off I tried finding any movement in the hubs but pulling on the brake disks at various points. Drivers side was all fine, no movement. But on the passenger side there is about 1mm of movement if I pull the brake disk from the bottom.
Could this be the problem?

The bearing sound fine, do I try tightening the hub nut?

I'm missing a nut from the front anti-roll bar mount, is that an issue?

Also, is there anything to check at the back of the car?

Thanks for your help guys...
Click to expand...

As my previous post, d/shaft spiders worn a groove in diff carrier !!

regards

Mal
 
Cheers Mal,

I've only been dealing with Land Rovers for a while, so the setup of diffs and the like is a different ball game!

The differental is going to be in the gearbox, right? Does this mean its an engine out job to fix?

Feel like a right newbie... Lol
 
edessex said:
Cheers Mal,

I've only been dealing with Land Rovers for a while, so the setup of diffs and the like is a different ball game!

The differental is going to be in the gearbox, right? Does this mean its an engine out job to fix?

Feel like a right newbie... Lol
Click to expand...

No not engine out, can take box out quite easy, if your mechanically minded that is, to confirm that is the issue, remove drive shafts and feel along where the shafts go into the g/box, you wil feel the groove causing the problem.

regards

Mal
 
edessex said:
Had another look, with the front wheels off I tried finding any movement in the hubs but pulling on the brake disks at various points. Drivers side was all fine, no movement. But on the passenger side there is about 1mm of movement if I pull the brake disk from the bottom.
Could this be the problem?
.
Click to expand...

Not sure if this will cause the problem, but you should fix it. If they collapse and they can. (had the who ball joint come out of my U o whne wife was driving it once.) It is not a good look.

Since you are going to do this, it is a very small job to drain the gearbox oil, take off the bolts that hold the driveshaft in and take that driveshaft out.

Same on the other side and then you can check to see if there is a groove in there that one of the other posters has mentioned.

I have just done my first clutch on one of these cars and I am surprised at how simple it is to get the D/S's out.
 
I'm still suspecting the bottom balljoint that is part of the control arm (lower wishbone) on the left (passenger's) side.

It is difficult to inspect the balljoint without removing it, because the suspension (spring/strut) tends to place a load on the balljoint even with the car raised. That's why I suggested a large crowbar to pry the cast-iron hub carrier upwards away from the control arm. Any movement will be visible and any knocking heard/felt.

The balljoint has a taper pin where it fits into the hub carrier. To remove it, either remove the driveshaft, loosen the nut on the taper pin, and use a separator like this: http://www.comparestoreprices.co.uk/images/sy/sykes-pickavant-ball-joint-separator.jpg

Or, more brutally, leave the driveshaft in place, remove the taper pin nut and use a fork like this... http://t2.gstatic.com/images?q=tbn:ANd9GcRwP0SVaYleOTp7HTjXJP83DkGVuxqUNCFtYPCBUn
...which will wreck the rubber boot and possibly also wreck the balljoint, not a problem if the control arm is being replaced :)

-Alex
 
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