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[EMD]

Cant get to the bottom of this noise thats coming from the rear of the car , sounds like a grinding noise from the wheels  Noise increases with speed like a high pitched whine , serek checked the drums for binding and spun the wheels and no noises coming from there 
Could this be the wheel bearing/s under load 

[zirk]

Wheel bearings tend to start with a slight Low frequency rumble / whine that gets worse over time before the bearing starts to break up. 

Diff noise is very similar to above but tends to be a higher pitch noise. 

[EMD]

Thing is there doesnt seem to be a way of checking , the noise isnt there with the wheels of the ground and spinning and cant detect any play  Advisory on last mot was rear wheel bearing but how would they know 

[zirk]

Thing is there doesnt seem to be a way of checking , the noise isnt there with the wheels of the ground and spinning and cant detect any play  Advisory on last mot was rear wheel bearing but how would they know 

Guessing they checked for play?

[EMD]

Thing is there doesnt seem to be a way of checking , the noise isnt there with the wheels of the ground and spinning and cant detect any play  Advisory on last mot was rear wheel bearing but how would they know 

Guessing they checked for play?

How do they do that then zirk ? Either way looks like ill be needing bearing replaced 

[zirk]

Check for wheel bearing play, both on the ground and off, also check for broken rear springs, Ive had them making funny noises when broken and its not always obvious there broken, especially on Saloons. 

[EMD]

So there should be play with hands at 6 o'clock and rock the wheel ?

[chrisgixer]

I thought there would be, but nope. No play. But my wheel bearing was knackered.

Sit in the back while someone else drives it, then drop a rear seat in turn and reach through putting a hand on the top shock mount. You can feel the rumbling going on and a lot else besides. If nothing else it will narrow down which side.

[chrisgixer]

Also to add, the ride at the rear was exceptionally harsh, this disappeared when the bearing was replaced.

By that I mean it's still firm as that's the set up, but the crashyness had gone on renewal, so there was play somewhere, the wheel did appear to flex on the hub, rather than wobble like a front bearing. Or that may just of been bush play and quite normal.

But the crashyness definitely vanished with the new bearing.

[EMD]

So really no definitive way of checking if your wheel bearings are shot really other than pinpointing the noise  When serek checked mine the wheels were off the ground on the lift , spun the wheels and no noise so im thinking its only noisy under load but the noise on mine dont change on cornering  Its pissing me off now 

[4x4]

Try swapping the tyres around.

[serek]

 car was on ramp no play on bearing to make sure, drive shafts off, brakes off no noise from bearings area

EMD: pop round one day next week down my place I have spare diff here we can try

[EMD]

car was on ramp no play on bearing to make sure, drive shafts off, brakes off no noise from bearings area

EMD: pop round one day next week down my place I have spare diff here we can try

Thanks serek , ill give you a ring in the week and come down 

It does sound like the diff .. is it the diff crown wheel or something that wears ?

[Entwood]

car was on ramp no play on bearing to make sure, drive shafts off, brakes off no noise from bearings area

EMD: pop round one day next week down my place I have spare diff here we can try

Thanks serek , ill give you a ring in the week and come down 

It does sound like the diff .. is it the diff crown wheel or something that wears ?

After a saga and a half I eventually "proved" the diff on mine was the culprit using the following technique ... BE WARNED .. SAFETY IS PARAMOUNT .. IF UNHAPPY DON'T DO IT

Jack rear of car up and place good quality, substantial, axle stands very carefully to support the body

Using two bottle jacks placed under the lower shock absorber mounts jack the rear wheels up until the drive shafts are back in their "normal" position and not "hanging".

Ensure the drive shafts and wheels are totally free BEFORE taking the next step

Start engine and place in gear - in  my case drive, which went straight through the gears and settled at approx 30 mph !! - the rear wheels will now rotate.

Listen at the wheels/diff for any unusual sounds, in my case the diff was quickly noted to be making odd noises, but in order to eliminate each wheel bearing in turn I got under the car and pulled on each handbrake cable in turn to stop the wheel on each side. IF NOT HAPPY BEING UNDER THE CAR WITH THE ENGINE RUNNING AND THE DRIVE IN USE - DON'T DO IT. In my case the noise from the diff got worse as each wheel was stopped, which, to me, proved that the diff had serious problems.

Replacement diff fitted all went quiet.

AS SAID - IF NOT HAPPY WITH VEHICLE SECURITY DON'T DO THIS, many years ago a friend was killed when his car fell on him as he was working under it with just the flimsy car jack supporting it, I do NOT wish to hear of this happening to anyone, anywhere, let alone an OOF member

[EMD]

Thanks for that entwood  Makes sense , i wont be going under the car though , be leaving that to serek  So diff noise is not an uncommon fault then , be interesting if serek can see what has worn on the diff if it is that