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 Search Today's Posts Mark Forums Read
Notices

Reply
 
Thread Tools Display Modes
Old 24th January 2020, 12:13   #1
drjonts
Loves to post
 
MG ZT-T 160

Join Date: Dec 2015
Location: Devon
Posts: 278
Thanks: 176
Thanked 59 Times in 48 Posts
Default Clutch release bearing whirr...how long left?

Hi folks,

Hope 2020 has begun well for all.

So, all you knowledgeable clutch gurus out there...my 160 bhp V6 ZT-T is on 80k miles with the original clutch (to my knowledge) and recently I have noticed the first signs of a quiet whirr from the release bearing when the clutch pedal is depressed.

So, I know that a clutch must be on the cards as at some point. I will try my best to be gentle and not sit at the lights with the clutch down for any length of time. That noise rather points to friction in the bearing...friction = heat...heat eventually will no doubt melt the plastic part of the slave and then it will be toast!

Questions...
1) Do any of you have any idea of how long I can nurse the clutch with what is currently a really quiet whirr? I have a feeling we are talking months or maybe a few thousand miles at best (although mileage and time all depend on how much the clutch is used). If it's all motorway it could last quite some period of time / a few miles but I have about 50 miles per day around town and through Devon and I average about 25 mph...so I use the clutch a bit!). I assume that the noise will most likely get worse as the end of life approaches so I will get a bit more warning methinks.

2) Best recommendation of clutch kit and slave to approach original fitted...

Are we talking:
LUK 3 piece (inc. slave)
Borg and Beck 3 piece (inc. slave)
Some combo. of the above?

I am really unsure which is the best slave to opt for as I've read various posts about ones to avoid and which might be the longest lived.

Is there a Land Rover slave out there that is better / stronger / closer to original fitment to the 2.5 V6 in the 75 / ZT.

I have got one of the old stock master cylinders (switch over pipework I believe) from Mat and Scott ready as it probably makes sense to do it all.

I appreciate any input from the huge wealth of knowledge out there and thanks in advance for suggestions.

Cheers all,

Jonty

Last edited by drjonts; 24th January 2020 at 12:15..
drjonts is offline   Reply With Quote
Old 24th January 2020, 13:13   #2
SCP440
Posted a thing or two
 
SCP440's Avatar
 
MG ZT-T 260

Join Date: Feb 2016
Location: Witney
Posts: 1,725
Thanks: 5
Thanked 550 Times in 356 Posts
Default

It depends on a lot on how much town driving or traffic you sit in.

A couple of years ago I had a Saab with a noisy clutch release bearing, 18 months later when I sold it the noise had not got any worse.

As you say if the clutch is original it is probably due replacement but if it has not failed you can plan to do it at your convenience rather than getting a breakdown and have to do it on a wet Sunday because you need it for work on Monday.
SCP440 is offline   Reply With Quote
The Following User Says Thank You to SCP440 For This Useful Post:
Old 24th January 2020, 14:04   #3
drjonts
Loves to post
 
MG ZT-T 160

Join Date: Dec 2015
Location: Devon
Posts: 278
Thanks: 176
Thanked 59 Times in 48 Posts
Default

Thanks Steve.

I agree - will see how things go for now and keep a watchful eye (and an ear!) out for signs of impending doom!

Clutch feels fine so mechanically the friction parts appear OK - I think the slave / bearing will be the downfall in due course.

Jonty
drjonts is offline   Reply With Quote
Old 24th January 2020, 16:13   #4
hogweed
I really should get out more.......
 
Rover 75 Connoisseur CDTI; MG TF 135

Join Date: Jan 2010
Location: Carnmoney
Posts: 2,222
Thanks: 653
Thanked 204 Times in 176 Posts
Default

Quote:
Originally Posted by SCP440 View Post
A couple of years ago I had a Saab with a noisy clutch release bearing, 18 months later when I sold it the noise had not got any worse.

Have to add my two penn’orth to that. First time my slave cylinder/release bearing/whatever it’s properly called collapsed, there was no warning noise at all – just changing from 2nd to 3rd one night, and pop – pedal to the floor.


Second time, the noise went on for months and months (including a lot of town driving) as I kept putting it off. Didn’t seem to get any worse with time, but eventually I bottled it and got it replaced.


Sadly, the new one lasted less than a year before starting to whine again – got it replaced under warranty. It was one of those metal jobs (LUK?)
__________________
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
The Following User Says Thank You to hogweed For This Useful Post:
Old 24th January 2020, 16:39   #5
drjonts
Loves to post
 
MG ZT-T 160

Join Date: Dec 2015
Location: Devon
Posts: 278
Thanks: 176
Thanked 59 Times in 48 Posts
Default

Thanks Roger.

That is useful information. So no warning necessarily eh!

I believe the LUK might be a metal unit...I have been trying to work out what the current best unit is as I have heard of some short-lived slave cylinders following replacement.

Cheers,

Jonty
drjonts is offline   Reply With Quote
Old 24th January 2020, 16:45   #6
hogweed
I really should get out more.......
 
Rover 75 Connoisseur CDTI; MG TF 135

Join Date: Jan 2010
Location: Carnmoney
Posts: 2,222
Thanks: 653
Thanked 204 Times in 176 Posts
Default

Quote:
Originally Posted by drjonts View Post
Thanks Roger.

That is useful information. So no warning necessarily eh!

I believe the LUK might be a metal unit...I have been trying to work out what the current best unit is as I have heard of some short-lived slave cylinders following replacement.

Cheers,

Jonty

Sorry mate, talking complete nonsense - the metal one was TAZU I believe. See this thread


The one I have now is one of the traditional manufacturers I think - supplied by X-Part
__________________
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
The Following User Says Thank You to hogweed For This Useful Post:
Old 24th January 2020, 16:59   #7
drjonts
Loves to post
 
MG ZT-T 160

Join Date: Dec 2015
Location: Devon
Posts: 278
Thanks: 176
Thanked 59 Times in 48 Posts
Default

Thanks Roger...I had heard that perhaps the TAZU ones weren't the best option.

I shall look at X-Part as a potential option and weigh up with any other comments if people wish to share them.

Cheers.

Jonty
drjonts is offline   Reply With Quote
Old 24th January 2020, 20:14   #8
Jamiewelch
Gets stuck in
 
Jamiewelch's Avatar
 
E92 320D, E61 525D, ZT Diesel

Join Date: Sep 2014
Location: Cheslyn hay
Posts: 545
Thanks: 26
Thanked 147 Times in 116 Posts
Default

Quote:
Originally Posted by drjonts View Post
Thanks Roger.

That is useful information. So no warning necessarily eh!

I believe the LUK might be a metal unit...I have been trying to work out what the current best unit is as I have heard of some short-lived slave cylinders following replacement.

Cheers,

Jonty
Don't fit a metal one! My ZT had one and the bearing had gone noisy in less than 2K miles... It then had one of DMGRS OEM-Q slaves fitted and it has a lovely light pedal now :-)
Jamiewelch is offline   Reply With Quote
The Following User Says Thank You to Jamiewelch For This Useful Post:
Old 24th January 2020, 20:17   #9
Les4048
This is my second home
 
Les4048's Avatar
 
Rover 75 Tourer/ MG ZT-T 400

Join Date: May 2012
Location: Lhanbryde
Posts: 3,133
Thanks: 2,518
Thanked 1,429 Times in 824 Posts
Default

A whirring noise will be the bearing part of it and could last long enough, no noise or warning and a sudden pedal drop is the seals blowing
Les4048 is offline   Reply With Quote
The Following 2 Users Say Thank You to Les4048 For This Useful Post:
Old 24th January 2020, 20:33   #10
COLVERT
Foreign correspondent.
 
COLVERT's Avatar
 
R75 Saloon.

Join Date: Feb 2009
Location: France/or Devon.
Posts: 10,989
Thanks: 2,735
Thanked 1,278 Times in 1,108 Posts
Default

The release bearing on my clutch used to make the odd whirring noise the first year I owned the car. I practised what you said in your post and did all the things you said you do.

Now, twelve years later, it is still working well so good luck with yours.---
__________________
COLVERT is offline   Reply With Quote
The Following 2 Users Say Thank You to COLVERT For This Useful Post:
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 +1. The time now is 04:39.


Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.
Copyright © 2006-2020, The Rover 75 & MG ZT Owners Club Ltd