Hum from rear Axle on Rover 75 CDI tourer

alan lloyd · 26th November 2008, 21:28

Hello, I have developed a hum in the rear axle which does not seem to stop when the clutch is depressed.

I will need to purchase replacement parts before returning to France, any advice?

Alan Lloyd

Number 6 · 26th November 2008, 21:37

Its dificult to say what it is but seeing as the 75 dosnt have a back axle it would appear to be a wheel bearing so putting the clutch down would make no difference.However you could try this:-drive along the road and when you hear the humand if it is safe make the car move to the left and right if the noise goes when you turn left it could be the left wheel bearing or to the right the right wheel bearing.This is because when you turn the wheel left or right you are taking the weight off the wheel and therefore the load off the bearing and the noise goes.

number 6

stocktake · 26th November 2008, 21:41

Had this on my previous R600 was indeed a wheel bearing, get somebody to sit in the back to locate which side

pondweed · 26th November 2008, 21:45

what sort of mileage?
I've got hums too - wheel bearings still to check at 151k.

JohnDotCom · 26th November 2008, 21:54

Sounds like rear Bearings,
not cheap I'm afraid.

.

Phil · 26th November 2008, 22:20

Check the tyres for castlation first. They will create wheel bearing type noises.

Jules · 26th November 2008, 23:14

Yep I would second Phil's comment.
Change tyres round 2 rear to 2 fronts.....see if the noise shifts forward!!

Many a wheel bearing have been changed unnecessarily due to castlated tyre wear particularly on the edges of rear tyres with independant suspension like the 75 ZT and Rover 800's!

This doesn't happen on solid rear axle setups.

moonstoneboy · 27th November 2008, 06:38

Quote:

Originally Posted by JohnDotCom

Sounds like rear Bearings,
not cheap I'm afraid.

.

Good system where you have to change the hub instead of just the bearing which would cost just a few pounds

.

Paul

bluey9 · 27th November 2008, 07:41

It sounds like a wheel bearing. I had one that needed replaced last year. The thing is, and this really annoys the perfectionists among us (me included), that you have to leave it until it gets much worse and can be positively traced to the correct side of the car to avoid replacing the wrong one.

Cheers
John

wats234 · 27th November 2008, 09:44

Quote:

Originally Posted by Phil

Check the tyres for castlation first. They will create wheel bearing type noises.

I had a rear wheel axle hum which I too thought was a bearing but it came from my tyres which had developed castellations - the giveaway is a 'feathering' of the tread pattern. My tyres were Avon ZZ3 which I found later invariably develop this problem on a 75 - It first became apparent at c12,000 miles

26th November 2008, 21:28	#1
alan lloyd Newbie rover 75 touring cdi Join Date: Feb 2008 Location: Farnham Posts: 12 Thanks: 0 Thanked 0 Times in 0 Posts	Hum from rear Axle on Rover 75 CDI tourer Hello, I have developed a hum in the rear axle which does not seem to stop when the clutch is depressed. I will need to purchase replacement parts before returning to France, any advice? Alan Lloyd

26th November 2008, 21:37	#2
Number 6 This is my second home Rover 75 tourer Club CD/Limo Tints Join Date: Nov 2008 Location: Meneac Posts: 6,759 Thanks: 5,007 Thanked 1,609 Times in 869 Posts	Its dificult to say what it is but seeing as the 75 dosnt have a back axle it would appear to be a wheel bearing so putting the clutch down would make no difference.However you could try this:-drive along the road and when you hear the humand if it is safe make the car move to the left and right if the noise goes when you turn left it could be the left wheel bearing or to the right the right wheel bearing.This is because when you turn the wheel left or right you are taking the weight off the wheel and therefore the load off the bearing and the noise goes. number 6 __________________ ] "I started out with nothing, and Ive still got most of it left!"

26th November 2008, 21:41	#3
stocktake Vis Whiz Rover 75 2.5 auto Saloon Join Date: Jun 2007 Location: LEEDS Posts: 20,602 Thanks: 2,057 Thanked 3,056 Times in 1,621 Posts	Had this on my previous R600 was indeed a wheel bearing, get somebody to sit in the back to locate which side __________________ Dave... Lost a few stones and a Gall Bladder and part of a bile duct and all of my dignity in the suppository incident

26th November 2008, 22:20	#6
Phil This is my second home Rover 75 CDT Connoisseur SE Join Date: Nov 2006 Location: Wales Posts: 12,227 Thanks: 469 Thanked 523 Times in 241 Posts	Check the tyres for castlation first. They will create wheel bearing type noises. __________________

26th November 2008, 23:14	#7
Jules This is my second home ZT 260 SE Twilight and 10 other 75 ZT's :O Join Date: Jan 2007 Location: Conwy NORTH WALES Posts: 11,094 Thanks: 512 Thanked 1,116 Times in 763 Posts	Yep I would second Phil's comment. Change tyres round 2 rear to 2 fronts.....see if the noise shifts forward!! Many a wheel bearing have been changed unnecessarily due to castlated tyre wear particularly on the edges of rear tyres with independant suspension like the 75 ZT and Rover 800's! This doesn't happen on solid rear axle setups. __________________ [SIGPIC][/SIGPIC] Newbies do now!! 1. Plenum drains..all 3 or 4 year dependent 2. Cooling fan..All speeds functioning 3. Bonnet cable divider block

26th November 2008, 21:45	#4
pondweed This is my second home Waiter, Waiter! I seem to have a Roomster in my drive... Join Date: Nov 2006 Location: Sussex Posts: 3,268 Thanks: 0 Thanked 1 Time in 1 Post	what sort of mileage? I've got hums too - wheel bearings still to check at 151k.

27th November 2008, 07:41	#9
bluey9 Banned 2004 Rover 75 2.0 CDTi Connoisseur Saloon, 2006 MG TF Spark 135, Jaguar XJ Sovereign TDVi Join Date: Oct 2007 Location: Glasgow Posts: 805 Thanks: 0 Thanked 2 Times in 2 Posts	It sounds like a wheel bearing. I had one that needed replaced last year. The thing is, and this really annoys the perfectionists among us (me included), that you have to leave it until it gets much worse and can be positively traced to the correct side of the car to avoid replacing the wrong one. Cheers John