Go Back   The 75 and ZT Owners Club Forums > The 75 and ZT Owners Club Forums > Technical Help Forum
Register FAQ Image Gallery Members List Calendar Mark Forums Read
Notices

Reply
 
Thread Tools Display Modes
Old 12th April 2011, 17:02   #1
Fingers21
Regular poster
 
'53 zt turbo

Join Date: Apr 2011
Location: Elm, Cambs
Posts: 60
Thanks: 0
Thanked 0 Times in 0 Posts
Default Very strange noise

Hi all, I've been reading the forum posts for a week or so now and finally picked up my zt turbo last night, so decided to join up.

I absolutely love the car so far, but am having problems finding a noise. It sounds like a really bad wheel bearing hum, I think from the back, but can't tell for sure.
When I got the car, the back discs and pads were SHOT, so thought it could have been that, replaced them today, still have the noise, absolutely no play on either back wheel, side to side or top to bottom and can't here a hum if I spin the wheels by hand.

Onto the front, I found major play in the front passenger wheel, so bought a wheel bearing, but before I fitted it, I found the track rod ends are pooped, so replaced them both sides, now I have absolutely no play in the front wheels either. But the noise is still there. It's a loud enough rumble to not be able to drown it out with the radio! I got the front off the floor on stands and started then engine, put it in third and let the wheels spin away, absolutely silent with my head next to each wheel, no hum. I'm now stuck! Could it still be a bearing? Knackered drive shaft? With the front wheels spinning and car off the floor, the drivers side spins a lot faster than the passenger side.

Thanks in advance
Fingers21 is offline   Reply With Quote
Old 12th April 2011, 17:20   #2
Dave Goody
This is my second home
 
Dave Goody's Avatar
 
15 years of 75s & ZTs now an XTrail

Join Date: Nov 2006
Location: Danbury, Essex
Posts: 3,761
Thanks: 18
Thanked 88 Times in 56 Posts
Default

Quote:
Originally Posted by Fingers21 View Post
Hi all, I've been reading the forum posts for a week or so now and finally picked up my zt turbo last night, so decided to join up.

I absolutely love the car so far, but am having problems finding a noise. It sounds like a really bad wheel bearing hum, I think from the back, but can't tell for sure.
When I got the car, the back discs and pads were SHOT, so thought it could have been that, replaced them today, still have the noise, absolutely no play on either back wheel, side to side or top to bottom and can't here a hum if I spin the wheels by hand.

Onto the front, I found major play in the front passenger wheel, so bought a wheel bearing, but before I fitted it, I found the track rod ends are pooped, so replaced them both sides, now I have absolutely no play in the front wheels either. But the noise is still there. It's a loud enough rumble to not be able to drown it out with the radio! I got the front off the floor on stands and started then engine, put it in third and let the wheels spin away, absolutely silent with my head next to each wheel, no hum. I'm now stuck! Could it still be a bearing? Knackered drive shaft? With the front wheels spinning and car off the floor, the drivers side spins a lot faster than the passenger side.

Thanks in advance
How worn are the tyres? are they cheapies? the Zt is prone to a loud hum when tyres worn uneven. New tyres cured my hum. Dave
__________________
ZT 190 X Power Grey The Only Colour is this Dark Silver!!

When I was a kid I was scared of earwigs because I thought they actually lived in your ears. I was even more terrified of cockroaches!
Dave Goody is offline   Reply With Quote
Old 12th April 2011, 18:16   #3
Fingers21
Regular poster
 
'53 zt turbo

Join Date: Apr 2011
Location: Elm, Cambs
Posts: 60
Thanks: 0
Thanked 0 Times in 0 Posts
Default

3 are brand new pirelli tyres, one is a cheapy and is probably has about 5000 miles left on it. But the hum noise is way to loud to be a tyre, I think.
Fingers21 is offline   Reply With Quote
Old 12th April 2011, 18:20   #4
T-Cut
This is my second home
 
Rover75 and Mreg Corsa.

Join Date: Nov 2006
Location: Sumweer onat mote o'dust (Sagin)
Posts: 21,751
Thanks: 341
Thanked 3,660 Times in 2,924 Posts
Default

You might be surprised. Why not swap some wheels around and compare.

TC
T-Cut is offline   Reply With Quote
Old 12th April 2011, 18:31   #5
BIG LEK
Banned
 
BIG LEK's Avatar
 
Rover 75

Join Date: Jul 2010
Location: somewhere
Posts: 3,833
Thanks: 52
Thanked 59 Times in 52 Posts
Default

I totally agree tyres can cause this sort of problem,so it is well worth changing the tyres around,
BIG LEK is offline   Reply With Quote
Old 12th April 2011, 19:00   #6
Fingers21
Regular poster
 
'53 zt turbo

Join Date: Apr 2011
Location: Elm, Cambs
Posts: 60
Thanks: 0
Thanked 0 Times in 0 Posts
Default

Wow, I had no idea tyres could cause a problem like this, I will be trying it first thing in the morning. Thanks. I'll keep you posted.
Fingers21 is offline   Reply With Quote
Old 13th April 2011, 10:44   #7
Fingers21
Regular poster
 
'53 zt turbo

Join Date: Apr 2011
Location: Elm, Cambs
Posts: 60
Thanks: 0
Thanked 0 Times in 0 Posts
Default

Ok, switched the tyres around and didn't notice any difference, so 2 new rear hubs are going on today, hopefully that cures the noise and it doesn't turn out to be front bearings, as I haven't got a press! Or worse still, driveshafts!
Fingers21 is offline   Reply With Quote
Old 13th April 2011, 22:26   #8
Fingers21
Regular poster
 
'53 zt turbo

Join Date: Apr 2011
Location: Elm, Cambs
Posts: 60
Thanks: 0
Thanked 0 Times in 0 Posts
Default

Quick update, both rear wheel bearings changed and the car is perfect, finally! The old bearings were ********! 5 balls in one side and 3 in the other!
Fingers21 is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT. The time now is 11:02.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright © 2006-2023, The Rover 75 & MG ZT Owners Club Ltd