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 3rd February 2017, 00:35   #1
peelaaa
Posted a thing or two
 
peelaaa's Avatar
 
75 cdti 2004 contemporary

Join Date: Apr 2008
Location: meath
Posts: 1,551
Thanks: 272
Thanked 80 Times in 58 Posts
Default Whirring noise when pressing clutch pedal

Hi, getting a sort of whirring noise when pressing clutch pedal. When pedal is not pressed then no noise. Pedal feels a bit heavier than in the past.

Clutch was changed about 80k ago, on a tazu master cylinder since 140k.

Is something failing or is the clutch just ready to be bleeded?
peelaaa is offline   Reply With Quote
Old 3rd February 2017, 01:00   #2
Mike Noc
This is my second home
 
Mike Noc's Avatar
 
Rover 75 CDT Manual Connoisseur SE, Rover 75 CDT Automatic Connoisseur SE & a Freelander Td4.

Join Date: Jul 2009
Location: Hampshire
Posts: 11,531
Thanks: 3,470
Thanked 3,119 Times in 2,247 Posts
Default

Usually, if you get a whirring noise when you depress the clutch pedal it is the clutch release bearing.

Had that on a 214, and it failed about two weeks later, but some can last for ages when noisy.

Unfortunately, as the bearing is part of the concentric slave cylinder, it will need a new complete unit if and when it packs up.
Mike Noc is offline   Reply With Quote
Old 3rd February 2017, 10:28   #3
3pinplug
Loves to post
 
3pinplug's Avatar
 
Rover 75 SE

Join Date: Sep 2013
Location: Medway Towns
Posts: 311
Thanks: 0
Thanked 11 Times in 7 Posts
Default

Think its just another " characteristic" of the clutch system, i get it everytime i press the clutch too, it always sounded to me like it was coming from the master cylinder. I have never heard another model car do it but lots of people have mentioned it on here so u may be lucky and just have the same thing, i hope so as the clutch system on these is just a license to print money
__________________
Work done / to do - on "Never Ending Story"!
1. Rattling manifold - replaced.
2. Thermostat - replaced.
3. Both VIS motors - rebuilt & VIS tester made!
4. Non working speedo, fluctuating fuel gauge and ABS fault - sorted!
5. Clutch, slave and master -replaced!
6. Boot leaking badly - Done.
7. Timing belts (all 3 ) due for replacement - to do.
8. Relace faulty 3 speed fan with 2 speed with resistor - replaced.
9. Faulty Reverse light switch - replaced.
10. Headlamp bulbs - replaced
3pinplug is offline   Reply With Quote
Old 3rd February 2017, 10:43   #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

One weakness these slaves have is that the release 'bearing' is a pretty rudimentary affair. Basically two lightweight pressed steel races with ball bearings between.



the noise you're hearing is the result of wear in the ball races. Once this reaches critical, the slave will fail.

TC

Last edited by T-Cut; 4th February 2017 at 20:17..
T-Cut is online now   Reply With Quote
Old 3rd February 2017, 11:50   #5
hogweed
I really should get out more.......
 
Vauxhall Insignia CDTi; MG TF 135

Join Date: Jan 2010
Location: Norn Iron
Posts: 2,942
Thanks: 942
Thanked 378 Times in 297 Posts
Default

Quote:
Originally Posted by T-Cut View Post
Once this reaches critical, the slave will fail.TC
...and I guess suddenly, leaving us stranded...?

I realise this is probably impossible to answer, but mine has a slight "wheee" noise when I depress the clutch too. It failed suddenly about 4 years ago, and I got a new clutch and everything back then.

The noise is pretty faint, so I guess what I'm trying to figure out is does it get gradually worse, so that I'll get to a point where I think "this is likely to fail soon" and get another new clutch, or is it likely to always be faint, then suddenly fail without warning...?
__________________
Past cars: MGB GT; Escort 1300 Sport; Vauxhall VX4/90; Marina Coupe TC; Celica ST (1972); Montego Turbo; Astra GTE 16V; Astra GSI 16V; Golf GTI 16V (Mk II); Sierra XR4x4 Estate; BMW 325i (E30); BMW M3 3.0; BMW M3 3.2 Evo. Left some of the more embarrassing ones out. And about 30 motorbikes.
hogweed is offline   Reply With Quote
Old 3rd February 2017, 11:52   #6
RugbyRover
Posted a thing or two
 
RugbyRover's Avatar
 
Rover 75 Tourer

Join Date: Sep 2010
Location: Rugby, Warwickshire (Home of Rugby Football)
Posts: 1,309
Thanks: 355
Thanked 97 Times in 72 Posts
Default

I would say Slave is on it's way out, I had that later last year.......

Adie
RugbyRover is offline   Reply With Quote
Old 3rd February 2017, 13:57   #7
peelaaa
Posted a thing or two
 
peelaaa's Avatar
 
75 cdti 2004 contemporary

Join Date: Apr 2008
Location: meath
Posts: 1,551
Thanks: 272
Thanked 80 Times in 58 Posts
Default

If its the slave, is this another symptom? The pedal feels harder to press and biting point is lower.

is it a clutch out job, ie. ie. a lot of labour?

Has anyone fitted the tazu as I have the master fitted already?

Last edited by peelaaa; 3rd February 2017 at 14:02..
peelaaa is offline   Reply With Quote
Old 3rd February 2017, 14:35   #8
FrenchMike
This is my second home
 
FrenchMike's Avatar
 
Rover 75 Saloon

Join Date: Aug 2007
Location: Avignon
Posts: 4,466
Thanks: 94
Thanked 661 Times in 554 Posts
Default

Quote:
Originally Posted by peelaaa View Post
If its the slave, is this another symptom? The pedal feels harder to press and biting point is lower.

is it a clutch out job, ie. ie. a lot of labour?

Has anyone fitted the tazu as I have the master fitted already?
Any weird noise has a mechanical origin (bearing i.e),not hydraulic issue with master etc..

And hard pedal is related to the stiffness of the diaphragm fingers
FrenchMike is offline   Reply With Quote
Old 3rd February 2017, 14:42   #9
Mike Noc
This is my second home
 
Mike Noc's Avatar
 
Rover 75 CDT Manual Connoisseur SE, Rover 75 CDT Automatic Connoisseur SE & a Freelander Td4.

Join Date: Jul 2009
Location: Hampshire
Posts: 11,531
Thanks: 3,470
Thanked 3,119 Times in 2,247 Posts
Default

Quote:
Originally Posted by FrenchMike View Post
And hard pedal is related to the stiffness of the diaphragm fingers
Can be due to a worn clutch plate Mike - a characteristic of diaphragm springs is that they load up the further the fingers move forward from the releasing point, which they do as the clutch plate wears.
Mike Noc is offline   Reply With Quote
Old 3rd February 2017, 14:51   #10
FrenchMike
This is my second home
 
FrenchMike's Avatar
 
Rover 75 Saloon

Join Date: Aug 2007
Location: Avignon
Posts: 4,466
Thanks: 94
Thanked 661 Times in 554 Posts
Default

Quote:
Originally Posted by Mike Noc View Post
Can be due to a worn clutch plate Mike - a characteristic of diaphragm springs is that they load up the further the fingers move forward from the releasing point, which they do as the clutch plate wears.
Of course Mike,lot of possibilities ,anyways the OP has no other choices
than open ,assess the damage ...and replace parts ...

Last edited by FrenchMike; 3rd February 2017 at 14:53..
FrenchMike 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 19:56.


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