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 15th May 2019, 22:34   #1
macmalon
Newbie
 
MG ZT-T

Join Date: Jan 2015
Location: Nantes
Posts: 23
Thanks: 3
Thanked 4 Times in 4 Posts
Default To change or not to change this flywheel?

Hi!


I have just removed my gearbox to change the clutch (which was slipping) and the slave and master cylinders (bought new ones from DMGRS) on my ZT-T cdti Mk2. I did it the long way by removing the subframe.


Now that I can see the flywheel, I am wondering if I should keep it or not. It has a lot of thermic marks (cf. pics). However, it has only two teeth of play and very little radial play, maybe 1mm.













So the question is, can I safely avoid buying a new flywheel? Thanks
macmalon is offline   Reply With Quote
Old 15th May 2019, 23:05   #2
marinabrian
Baculum Magicum
 
marinabrian's Avatar
 
A few too many

Join Date: Jan 2011
Location: The People's Republic of North Tyneside
Posts: 18,189
Thanks: 2,659
Thanked 8,630 Times in 4,741 Posts
Default

Hi Jacques, it's within LUK tolerances for both axial and radial play, I would be tempted to clean the face lightly with 180 grade production paper and box it up.

The clutch must have been slipping quite badly?

Brian
__________________
marinabrian is offline   Reply With Quote
The Following 2 Users Say Thank You to marinabrian For This Useful Post:
Old 15th May 2019, 23:20   #3
slovcan
Gets stuck in
 
slovcan's Avatar
 
75 Tourer CDT MK2 manual in Glorious Grey

Join Date: Jan 2018
Location: CENTREVILLE
Posts: 848
Thanks: 675
Thanked 297 Times in 214 Posts
Default

Quote:
Originally Posted by marinabrian View Post
Hi Jacques, it's within LUK tolerances for both axial and radial play, I would be tempted to clean the face lightly with 180 grade production paper and box it up.

The clutch must have been slipping quite badly?

Brian
I would also use a straight edge and the thinnest possible feeler gauge to check if the surface is not warped or has high/low spots.
__________________
Annapolis Valley, Nova Scotia, Canada

Anything can happen in Formula 1 and usually does - Murray Walker

1999 Triumph Trophy 900, Saddlesore 1600, Iron Butt Riders Association #63720

2005 Rover 75 CDT Tourer MK2https://photos.app.goo.gl/uP62HpsZd2WwxMtW9
slovcan is offline   Reply With Quote
The Following User Says Thank You to slovcan For This Useful Post:
Old 16th May 2019, 10:09   #4
macmalon
Newbie
 
MG ZT-T

Join Date: Jan 2015
Location: Nantes
Posts: 23
Thanks: 3
Thanked 4 Times in 4 Posts
Default

Thanks a lot for your answer, guys


Yes Brian, this clutch has been slipping and then not slipping for more than a year.

But now, with a caravan in the equation, I had no choice but change it.



The worse time it had, was the day we brought the caravan in the garden for the first time. Lots of manoeuvres and a big smell of hot clutch. Other than that everytime it really slipped on the road, often in 5th gear, picking up from 80km/h with too much pressure on the right pedal, I always lifted my foot to prenvent it to slip. So yeah, it has slipped on many occasions even though I was cautious not to accelerate too much. Soon, I'll reenjoy the pleasure of that infamous 160 upgrade in 5th gear


So my plan is to clean the flywheel surface and check for high/low spots as suggested by slovcan.
macmalon is offline   Reply With Quote
Old 16th May 2019, 21:15   #5
Comfortably Numb
Posted a thing or two
 
Rover 75 Saloon

Join Date: Dec 2017
Location: Penrith
Posts: 1,063
Thanks: 115
Thanked 264 Times in 207 Posts
Default

Is that a replacement driven plate you are taking out? The one I have just removed from my 133,000 mile 2001 CDT appears to be the original, springless, German made one. It only slipped slightly on hard acceleration (still 114bhp). It had worn the rivet heads off on one side, and broken them through the thin, remaining friction material on the other side, so the friction material was effectively free floating, causing bad judder at take-off. While there is some heat marking on the flywheel, and 1, light diagonal score line, it looks nothing like as severe as yours. I am still not sure how much damage was done by the garage mechanic who "tested" my clutch by holding the car on the brakes, and increasing the throttle pressure as he let the clutch out oh so slowly until it started smoking and slipping, fully out, at which point he stopped the test, and confirmed that my clutch was knackered. Brought a whole new meaning to heel-and-toe! And meant I didn't engage his services for the clutch change.
Comfortably Numb is offline   Reply With Quote
Old 16th May 2019, 21:42   #6
HarryM1BYT
This is my second home
 
HarryM1BYT's Avatar
 
75 Contemporary SE Mk II 2004 Man. Sal. CDTi 135ps, FBH on red diesel, WinCE6 DD

Join Date: May 2010
Location: Garforth, W. Yorks
Posts: 16,825
Thanks: 2,101
Thanked 1,862 Times in 1,455 Posts
Default

Quote:
Originally Posted by macmalon View Post
The worse time it had, was the day we brought the caravan in the garden for the first time. Lots of manoeuvres and a big smell of hot clutch.

My rules is to never manoeuvrer with it attached to the car, I use the mover for that, or push it by hand, or use a hand winch to get it up my drive.





__________________
Harry

How To's and items I offer for free, or just to cover the cost of my expenses...

http://www.the75andztclub.co.uk/foru...40#post1764540

Fix a poor handbrake; DIY ABS diagnostic unit; Loan of the spanner needed to change the CDT belts; free OBD diagnostics +MAF; Correct Bosch MAF cheap; DVB-T install in an ex-hi-line system; DD install with a HK amp; FBH servicing.

I've taken a vow of poverty. To annoy me, send money.

Last edited by HarryM1BYT; 16th May 2019 at 22:26..
HarryM1BYT is offline   Reply With Quote
Old 18th May 2019, 00:12   #7
Comfortably Numb
Posted a thing or two
 
Rover 75 Saloon

Join Date: Dec 2017
Location: Penrith
Posts: 1,063
Thanks: 115
Thanked 264 Times in 207 Posts
Default

Quote:
Originally Posted by HarryM1BYT View Post
My rules is to never manoeuvrer with it attached to the car, I use the mover for that, or push it by hand, or use a hand winch to get it up my drive.




Memories of my dad, trying to turn around a Bedford CA Dormobile and caravan at the dead end of a farm lane, in the dark, somewhere in the wilds of Northumberland. After burning out the clutch, he walked back to the farmhouse we had passed earlier, and eventually, we were towed into a garage yard in Hexham, full of crashed cars off the A69, where we spent the night in the caravan.
Comfortably Numb 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 +1. The time now is 15:41.


Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
Copyright © 2006-2019, The Rover 75 & MG ZT Owners Club Ltd