Notices

Can't get rid of B3stard clunking noise.

Thread Tools
 
Search this Thread
 
Old 16 March 2016, 12:10 PM
  #1  
Cambs_Stuart
Scooby Regular
Thread Starter
iTrader: (3)
 
Cambs_Stuart's Avatar
 
Join Date: Sep 2015
Location: Cambridge
Posts: 1,789
Received 3 Likes on 3 Posts
Default Can't get rid of B3stard clunking noise.

I've changed the drop links, Anti roll bar bushes and suspension (Which all needed doing anyway, the components were 10 years old and knackered), but I'm still getting a knocking, clunking noise at low speed over rough ground. It sounds like it's from the front passenger side. It's not a reciprocating noise, so I don't think it's a bearing or CV joint (although there is a very small amount of lateral play in the front diff) and it doesn't seem to make any difference if I'm cornering or going straight.
Any more suggestions for fixing this? Wishbone Bushes? Engine Mounts? Steering ball joint? Fire?
I'm grinding my teeth with frustration over this. All suggestion welcome.
Old 16 March 2016, 12:11 PM
  #2  
banny sti
Scooby Senior
iTrader: (68)
 
banny sti's Avatar
 
Join Date: Oct 2004
Location: Type R
Posts: 16,598
Received 22 Likes on 16 Posts
Default

Strut top mount?
Old 16 March 2016, 12:13 PM
  #3  
Cambs_Stuart
Scooby Regular
Thread Starter
iTrader: (3)
 
Cambs_Stuart's Avatar
 
Join Date: Sep 2015
Location: Cambridge
Posts: 1,789
Received 3 Likes on 3 Posts
Default

Originally Posted by banny sti
Strut top mount?
Nope. I've got coilovers, so no top mount at all. It made the noise before I moved to coilovers and it still makes it now.

Last edited by Cambs_Stuart; 16 March 2016 at 12:14 PM.
Old 16 March 2016, 12:18 PM
  #4  
banny sti
Scooby Senior
iTrader: (68)
 
banny sti's Avatar
 
Join Date: Oct 2004
Location: Type R
Posts: 16,598
Received 22 Likes on 16 Posts
Default

I assume bolts for the bottom arm have been checked?
Old 16 March 2016, 12:27 PM
  #5  
Cambs_Stuart
Scooby Regular
Thread Starter
iTrader: (3)
 
Cambs_Stuart's Avatar
 
Join Date: Sep 2015
Location: Cambridge
Posts: 1,789
Received 3 Likes on 3 Posts
Default

Originally Posted by banny sti
I assume bolts for the bottom arm have been checked?
Assume I'm an idiot that know nothing.
Which bolts? The ones on the wishbone?
Old 16 March 2016, 12:35 PM
  #6  
banny sti
Scooby Senior
iTrader: (68)
 
banny sti's Avatar
 
Join Date: Oct 2004
Location: Type R
Posts: 16,598
Received 22 Likes on 16 Posts
Default

Originally Posted by Cambs_Stuart
Assume I'm an idiot that know nothing.
Which bolts? The ones on the wishbone?
The bolts that hold this to the body

Old 16 March 2016, 12:44 PM
  #7  
Cambs_Stuart
Scooby Regular
Thread Starter
iTrader: (3)
 
Cambs_Stuart's Avatar
 
Join Date: Sep 2015
Location: Cambridge
Posts: 1,789
Received 3 Likes on 3 Posts
Default

Originally Posted by banny sti
The bolts that hold this to the body

They look a lot shinier than the steel arms on my wagon! But I'll add that to the list of stuff to check when I've got the car up at the weekend. Thanks for the suggestion.
Old 16 March 2016, 12:48 PM
  #8  
banny sti
Scooby Senior
iTrader: (68)
 
banny sti's Avatar
 
Join Date: Oct 2004
Location: Type R
Posts: 16,598
Received 22 Likes on 16 Posts
Default

Originally Posted by Cambs_Stuart
They look a lot shinier than the steel arms on my wagon! But I'll add that to the list of stuff to check when I've got the car up at the weekend. Thanks for the suggestion.
Alloys arms from the sti are a good upgrade over the steel items
Old 16 March 2016, 12:50 PM
  #9  
ZANY
Scooby Regular
 
ZANY's Avatar
 
Join Date: Oct 2014
Location: P1234x
Posts: 6,082
Received 131 Likes on 101 Posts
Default

I had the same problem and after changing all shocks bushes, arb droplinks it turned out to be the rear passenger cv joint on the hub side never would have thought it but it was changed the full shaft and happy days
Old 16 March 2016, 01:22 PM
  #10  
Cambs_Stuart
Scooby Regular
Thread Starter
iTrader: (3)
 
Cambs_Stuart's Avatar
 
Join Date: Sep 2015
Location: Cambridge
Posts: 1,789
Received 3 Likes on 3 Posts
Default

Originally Posted by banny sti
Alloys arms from the sti are a good upgrade over the steel items
They're on the to do list. I've replaced the suspension, tweaked the brakes and now it's onto the engine. Then I'll be looking at wishbones and poly bushes.
Old 16 March 2016, 01:23 PM
  #11  
Cambs_Stuart
Scooby Regular
Thread Starter
iTrader: (3)
 
Cambs_Stuart's Avatar
 
Join Date: Sep 2015
Location: Cambridge
Posts: 1,789
Received 3 Likes on 3 Posts
Default

Originally Posted by ZANY
I had the same problem and after changing all shocks bushes, arb droplinks it turned out to be the rear passenger cv joint on the hub side never would have thought it but it was changed the full shaft and happy days
Thanks for the tip. I'll see if there is any movement in it at the weekend.
Old 16 March 2016, 02:38 PM
  #12  
ZANY
Scooby Regular
 
ZANY's Avatar
 
Join Date: Oct 2014
Location: P1234x
Posts: 6,082
Received 131 Likes on 101 Posts
Default

Originally Posted by Cambs_Stuart
Thanks for the tip. I'll see if there is any movement in it at the weekend.
If checking whilst driveshaft still attached on the car you can't tell as i checked all driveshafts for play before I changed the struts the cv joint was knackered on the side of the hub but only made the knock wen I went over a bump or on a bumpy road then sometimes even wen setting off changing gear sometimes on a smooth stretch aswell drove me mental, hope you get it sorted bro
Old 16 March 2016, 05:42 PM
  #13  
Cambs_Stuart
Scooby Regular
Thread Starter
iTrader: (3)
 
Cambs_Stuart's Avatar
 
Join Date: Sep 2015
Location: Cambridge
Posts: 1,789
Received 3 Likes on 3 Posts
Default

Originally Posted by ZANY
If checking whilst driveshaft still attached on the car you can't tell as i checked all driveshafts for play before I changed the struts the cv joint was knackered on the side of the hub but only made the knock wen I went over a bump or on a bumpy road then sometimes even wen setting off changing gear sometimes on a smooth stretch aswell drove me mental, hope you get it sorted bro
That sounds like it may be beyond my skills. I'll have a go at tightening all the bolts I can find, and if that doesn't work I'll have to see if I can get an appointment with Tim Farmer.
Old 16 March 2016, 05:45 PM
  #14  
The Pink Ninja
Scooby Regular
iTrader: (23)
 
The Pink Ninja's Avatar
 
Join Date: Apr 2008
Location: ...
Posts: 6,703
Likes: 0
Received 2 Likes on 2 Posts
Default

Originally Posted by Cambs_Stuart
That sounds like it may be beyond my skills. I'll have a go at tightening all the bolts I can find, and if that doesn't work I'll have to see if I can get an appointment with Tim Farmer.
Maybe lower ball joint that comes off the front arm above and fixes to the bottom of the hub
Old 16 March 2016, 08:56 PM
  #15  
Cambs_Stuart
Scooby Regular
Thread Starter
iTrader: (3)
 
Cambs_Stuart's Avatar
 
Join Date: Sep 2015
Location: Cambridge
Posts: 1,789
Received 3 Likes on 3 Posts
Default

Originally Posted by The Pink Ninja
Maybe lower ball joint that comes off the front arm above and fixes to the bottom of the hub
Cheers. I'll add it to the "to check" list. It's definitely only when the front passenger wheel hits a pothole or other lump. I've been carefully driving over a selection of graded holes to check.

Last edited by Cambs_Stuart; 16 March 2016 at 08:57 PM.
Old 17 March 2016, 07:29 AM
  #16  
domino46
Scooby Regular
 
domino46's Avatar
 
Join Date: May 2011
Location: www.bbscoobys.com
Posts: 3,179
Received 264 Likes on 172 Posts
Default

Sounds like a ARB issue to me ,, my advice is remove the whole ARB set up and drive carfully down the pot hole road and see if it stops if it stops you know it's a issue with the roll bar if it's still there with it removed you can look elsewhere , as I had the same problem , bushes looked new but after swapping them it was fine ,, done everything else first as they looked ok but lesson learned was don't assume there good as it could of saved a fortune in new parts including new suspension

Last edited by domino46; 17 March 2016 at 07:31 AM.
Old 17 March 2016, 08:24 AM
  #17  
JDM_Stig
Scooby Regular
iTrader: (3)
 
JDM_Stig's Avatar
 
Join Date: Feb 2009
Location: Mount Weather
Posts: 5,840
Received 41 Likes on 33 Posts
Default

Originally Posted by Cambs_Stuart
Nope. I've got coilovers, so no top mount at all. It made the noise before I moved to coilovers and it still makes it now.
How do you think you have No top mount,
Think back to what BCs used to have knocking issues with . . .
You still have a top mount even if it has no rubber in it.
Old 17 March 2016, 09:25 AM
  #18  
Cambs_Stuart
Scooby Regular
Thread Starter
iTrader: (3)
 
Cambs_Stuart's Avatar
 
Join Date: Sep 2015
Location: Cambridge
Posts: 1,789
Received 3 Likes on 3 Posts
Default

Originally Posted by JDM_Stig
How do you think you have No top mount,
Think back to what BCs used to have knocking issues with . . .
You still have a top mount even if it has no rubber in it.
To be specific, with the coilovers I've got no top mount bearing as usually fitted (see picture below). However the noise was there before the coilovers (meister r) were fitted and is still there now. So while I can't completely rule it out I think there are more likely possibilities.

Old 17 March 2016, 09:30 AM
  #19  
Cambs_Stuart
Scooby Regular
Thread Starter
iTrader: (3)
 
Cambs_Stuart's Avatar
 
Join Date: Sep 2015
Location: Cambridge
Posts: 1,789
Received 3 Likes on 3 Posts
Default

Originally Posted by domino46
Sounds like a ARB issue to me ,, my advice is remove the whole ARB set up and drive carfully down the pot hole road and see if it stops if it stops you know it's a issue with the roll bar if it's still there with it removed you can look elsewhere , as I had the same problem , bushes looked new but after swapping them it was fine ,, done everything else first as they looked ok but lesson learned was don't assume there good as it could of saved a fortune in new parts including new suspension
Thanks for the advice. Personally I suspect either the arb or drop links, engine mount or something in the wishbone/hub/cv joint area. The suspension was bouncy and knocking so needed replacing anyway.
Old 17 March 2016, 01:03 PM
  #20  
Cambs_Stuart
Scooby Regular
Thread Starter
iTrader: (3)
 
Cambs_Stuart's Avatar
 
Join Date: Sep 2015
Location: Cambridge
Posts: 1,789
Received 3 Likes on 3 Posts
Default

Originally Posted by Cambs_Stuart
Thanks for the advice. Personally I suspect either the arb or drop links, engine mount or something in the wishbone/hub/cv joint area. The suspension was bouncy and knocking so needed replacing anyway.
Having read this, I really hope it's not the engine mounts...

http://www.iwsti.com/forums/diy-mods...or-mounts.html
Old 17 March 2016, 09:09 PM
  #21  
sy.
Scooby Regular
iTrader: (8)
 
sy.'s Avatar
 
Join Date: Mar 2008
Location: west mids
Posts: 984
Likes: 0
Received 0 Likes on 0 Posts
Default

If its intermittent I'd say cv joint as my 2 pence worth
Old 17 March 2016, 09:53 PM
  #22  
tom-r33
Scooby Regular
iTrader: (2)
 
tom-r33's Avatar
 
Join Date: Mar 2012
Location: somerset
Posts: 598
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by Cambs_Stuart
To be specific, with the coilovers I've got no top mount bearing as usually fitted (see picture below). However the noise was there before the coilovers (meister r) were fitted and is still there now. So while I can't completely rule it out I think there are more likely possibilities.

check the nut that sits just underneath the adjuster in the pic
Old 17 March 2016, 10:17 PM
  #23  
Cambs_Stuart
Scooby Regular
Thread Starter
iTrader: (3)
 
Cambs_Stuart's Avatar
 
Join Date: Sep 2015
Location: Cambridge
Posts: 1,789
Received 3 Likes on 3 Posts
Default

Originally Posted by tom-r33
check the nut that sits just underneath the adjuster in the pic
Will do.
Old 18 March 2016, 07:41 PM
  #24  
STOOBOY
Scooby Regular
iTrader: (5)
 
STOOBOY's Avatar
 
Join Date: Feb 2004
Posts: 368
Likes: 0
Received 0 Likes on 0 Posts
Default

Exhaust knocking on the diff? The exhaust moves a fair bit on standard mounts. Easy to check and rule out anyway.
Old 18 March 2016, 08:43 PM
  #25  
Cambs_Stuart
Scooby Regular
Thread Starter
iTrader: (3)
 
Cambs_Stuart's Avatar
 
Join Date: Sep 2015
Location: Cambridge
Posts: 1,789
Received 3 Likes on 3 Posts
Default

Originally Posted by STOOBOY
Exhaust knocking on the diff? The exhaust moves a fair bit on standard mounts. Easy to check and rule out anyway.
Good point. I hadn't thought of that.
Old 19 March 2016, 06:11 PM
  #26  
InTurbo
Scooby Regular
iTrader: (3)
 
InTurbo's Avatar
 
Join Date: Jan 2013
Location: Oxford
Posts: 739
Likes: 0
Received 0 Likes on 0 Posts
Default

I've had a problem like this, Might not be your problem but something for you to check.

The lower c frame makes a click noise at slow speeds over bumps if it's not torqued up.
If it's been removed at any point for roll bar or anti lift fitting just go round and make sure all the bolts are torqued up.
Old 19 March 2016, 06:55 PM
  #27  
Cambs_Stuart
Scooby Regular
Thread Starter
iTrader: (3)
 
Cambs_Stuart's Avatar
 
Join Date: Sep 2015
Location: Cambridge
Posts: 1,789
Received 3 Likes on 3 Posts
Default

Originally Posted by InTurbo
I've had a problem like this, Might not be your problem but something for you to check.

The lower c frame makes a click noise at slow speeds over bumps if it's not torqued up.
If it's been removed at any point for roll bar or anti lift fitting just go round and make sure all the bolts are torqued up.
I refer you to my earlier comment: "assume I'm an idiot and know nothing"
By C frame do you mean the big U shaped section under that goes under the front of the engine and the wishbones?
Old 19 March 2016, 07:22 PM
  #28  
InTurbo
Scooby Regular
iTrader: (3)
 
InTurbo's Avatar
 
Join Date: Jan 2013
Location: Oxford
Posts: 739
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by Cambs_Stuart
I refer you to my earlier comment: "assume I'm an idiot and know nothing"
By C frame do you mean the big U shaped section under that goes under the front of the engine and the wishbones?
Yeah C frame U frame/Brace thingy!
Old 21 March 2016, 01:02 PM
  #29  
Cambs_Stuart
Scooby Regular
Thread Starter
iTrader: (3)
 
Cambs_Stuart's Avatar
 
Join Date: Sep 2015
Location: Cambridge
Posts: 1,789
Received 3 Likes on 3 Posts
Default

So, I've had a crawl around underneath and it's not:

Drop links.
Exhaust.
Wishbones.
C/U frame.

I've also tightened the bolts at the top of the coilovers with no effect.
Therefore I'm suspecting an engine mount or cv joint. Both of which are out of my ability, so now I need a decent subaru garage in Cambridge. Or has anyone got a number for Tim Farmer?
Old 21 March 2016, 01:31 PM
  #30  
G27
Scooby Regular
 
G27's Avatar
 
Join Date: Feb 2014
Location: Essex
Posts: 47
Likes: 0
Received 0 Likes on 0 Posts
Default

Have you tried rocking the car side to side by giving it a good shove on the top of the door / b pillar, a bit like pushing a "heavy" person on a swing?

That helped me to pinpoint a similar noise.


Quick Reply: Can't get rid of B3stard clunking noise.



All times are GMT +1. The time now is 06:30 PM.