75 Front suspension clonk - MG-Rover.org Forums
 
 
 
Go Back   MG-Rover.org Forums > Model Specific Forums > MG ZT / Rover 75 (Sponsored by Rimmer Bros)

Reply
 
Thread Tools Rate Thread Display Modes
Old 23-04-2012, 16:30   #1
MartinHaven
Registered User
 

Join Date: Mar 2011
Car: 2001 Rover 75 Connoisseur SE V6 Auto
Posts: 27
75 Front suspension clonk

My V6 Connoisseur auto had a clonking from the front suspension over road undulations.

It failed the MOT last summer on osf ball-joint. I replaced the lower arm and rear bush, as well as the drop-link.

A month or so ago, with a noisy nsf, I replaced the lower arm, bush, drop-link and top-mount.

Naturally, a large degree of penetrating oil, swearing, brute force and knuckle-skin was employed both times but my suspension STILL clonks (although more quietly) over potholes, dips, speed-bumps etc.

I checked the nsf damper, when the corner was in pieces and there were no signs of leakage.

Next port of call is the steering - any ideas?

The clonks are not particularly loud - and not present at all on Motorways - but annoying.

Help...
MartinHaven is offline   Reply With Quote

Sponsored Links
Advertisement
 
Old 23-04-2012, 19:19   #2
Tim45
Registered User
 

Join Date: Oct 2009
Location: Northern Ireland
Car: 06 Connie SE Tourer CDTi Auto
Posts: 202
ditto.....

I have the same problem (2004, 70K, 1.8 tourer). Replaced front anti-roll bar bushes, track rod ends, drop links and strut top bearings. Speed bumps and rough roads. I'm learning to live with the clunk, can't think of what else to replace and it's getting expensive.
Tim45 is offline   Reply With Quote

Old 23-04-2012, 20:37   #3
MartinHaven
Registered User
 

Join Date: Mar 2011
Car: 2001 Rover 75 Connoisseur SE V6 Auto
Posts: 27
I have read about greasing front suspension... where's this mythical grease nipple?

My next though was track-rod ends or rack...
MartinHaven is offline   Reply With Quote

Old 23-04-2012, 23:28   #4
tjz
Registered User
 

Join Date: Nov 2011
Car: Rover 75
Posts: 38
Had the same thing (extremely noisy, on every stinking pothole) on my 2000 V6 some 6 months back, got it fixed when I had both front anti-roll bars replaced. I remember the mechanic had the car lifted, couldn't for the life of him see anything wrong, told him about the sounds, grabbed on to the anti-roll bars and basically tried to lift himself on them (skinny guy), and there was the sound.

6 months later that dreaded clonking is back (in its beginner form, took about 3 months to manifest itself fully last time around). Hope I don't have to change the left anti-roll bar again (I can only hear the clonking when I drive over a pothole with the front left wheel, nothing on the right.

If you guys find out about that mythical grease nipple, please post back. I would much rather go on a nipple greasing quest than drop more cash on my 75.
tjz is offline   Reply With Quote

Old 24-04-2012, 11:15   #5
rpaterson
Registered User
 

Join Date: Jan 2009
Location: Maybole
Car: V6 160
Posts: 2,057
I had a clunk/clonk on a Punto I used to have. Turned out to be the spring was getting wound up on the spring platform and then unloading once it got pre-loaded enough. A strip-down of the strut and spring along with a nice grease upon reassembly cured it.
rpaterson is offline   Reply With Quote

Old 25-04-2012, 17:40   #6
MartinHaven
Registered User
 

Join Date: Mar 2011
Car: 2001 Rover 75 Connoisseur SE V6 Auto
Posts: 27
tjz, did your mechanic replace the front anti-roll bars or their bushes? or both?
MartinHaven is offline   Reply With Quote

Old 25-04-2012, 20:37   #7
skinnyL
Supporter
 

Join Date: Apr 2012
Location: Fife.
Car: Rover 75 V6 2.5 Conn Auto Tourer 2003
Posts: 15
Rover 75 Conn Tourer 2.5 V6 petrol

Newbie.

Just purchased this car a couple of weeks ago, but when I road tested it before parting with the money I noticed this rattle/clattering noise on a roughish road surface and the guy said he thought it was something in the offside front door clonking now and again.

Well I drove it back to Scotland from London and it appeared ok as all motorway roads really. Anyway it seems to be a lot worse on tarmac road surfaces where the road is broken up and on small potholes as it makes a lot of clattering noise which appears to come from the F/O/S wheel. My mechanic can only find a slight movement on the track rod so he is going to replace the 'INNER TRACK ROD' as a process of elimination. ANY IDEAS ON ANY FURTHER WORK THAT MAY BE NECESSARY?
Thanks in anticipation.
skinnyL is offline   Reply With Quote

Old 26-04-2012, 00:34   #8
tjz
Registered User
 

Join Date: Nov 2011
Car: Rover 75
Posts: 38
Only the anti-roll bars. I didn't exactly see the installation process but I did have the replacement anti-roll bars in hand and they had come with no bushes.
tjz is offline   Reply With Quote

Old 26-04-2012, 08:42   #9
hufodorp
Registered User
 

Join Date: Apr 2011
Car: 2003 MG ZT 190+ V6
Posts: 137
Just one thought. Could it be the strut bearing. I had the same noise and I replaced the strut bearing for both side and no noise anymore. The bearing was fine when I lifted up the car but when I lowered down, under weight it was doing the problem. When I turned the wheel it winded up the spring and when it was back in center it still had a tension on the spring. When I moved the car and went over a bump the bearing just jumped and removed the tension from the spring when the spring gave that noise. When I pull out the strut bearing and I twisted it and checked it was smooth. I thought ohh no it will not cure the problem, but when I put the new in the problem never came back. It is almost 9 months now.
hufodorp is offline   Reply With Quote

Old 26-04-2012, 09:07   #10
eumjmorris
Registered User
 

Join Date: Apr 2007
Location: B61 8LR Bromsgrove
Car: 2002 R75T CDT.
Posts: 64
confused...two anti-roll-bars?..or do we mean two drop links?..or the two bushes between ARB and chassis?..elaborate please, as I have the same annoying untraceable "bump" on one car only, sounds nsf.
ta, Mike M.
eumjmorris is offline   Reply With Quote

Old 26-04-2012, 16:11   #11
tjz
Registered User
 

Join Date: Nov 2011
Car: Rover 75
Posts: 38
@eumjmorris: ARB links. Sorry, I'm not yet proficient with my mechanical terms.
tjz is offline   Reply With Quote

Old 27-04-2012, 07:10   #12
eumjmorris
Registered User
 

Join Date: Apr 2007
Location: B61 8LR Bromsgrove
Car: 2002 R75T CDT.
Posts: 64
thanks, regards, M.
eumjmorris is offline   Reply With Quote

Reply

Bookmarks


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes Rate This Thread
Rate This Thread:

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

Similar Threads
Thread Thread Starter Forum Replies Last Post
Suspension clonk malcolm622 MG ZT / Rover 75 (Sponsored by Rimmer Bros) 2 07-01-2009 19:18
75 diesel tourer 'clonk' at rear tourrerman MG ZT / Rover 75 (Sponsored by Rimmer Bros) 15 06-09-2007 12:05
Clonk from front suspension fevsisere MG ZT / Rover 75 (Sponsored by Rimmer Bros) 12 16-01-2007 12:38
R25 Suspension clonk roverham MG ZR / Rover 25, 200 & Streetwise 0 08-06-2006 22:00
75 cdt left hand rear clonk paranoid MG ZT / Rover 75 (Sponsored by Rimmer Bros) 0 02-01-2006 16:59


All times are GMT. The time now is 12:19.


Powered by vBulletin® Version 3.8.5
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
ShowCase, Vendor Tools vBulletin Plugins by Drive Thru Online, Inc.