displaying posts 1 to 9 of 9

Author Subject: Bilstein b8 problems
scottycollard

Junior User

Location: Totnes

Registered: 27 Sep 2010

Posts: 85

Status: Offline

Post #1
Hi there recently Ive just had, bilstien b8 dampers with eibach pro kits 40 mm lowering springs fitted. There are fine on a fast road but on slow driving when I hit a bump ie; pot hole or speed bump there s a knock coming from them. I was just wondering if anyone would know what it would be many thanks.
Posted 23rd Feb 2011 at 15:40
bennn

Seasoned Pro

Location: Shrewsbury

Registered: 05 Sep 2008

Posts: 2,705

Status: Offline

Post #2
Anti roll bar (drop) link my money is on see if you can feel any movement from the ball joints on it.

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Posted 23rd Feb 2011 at 15:49
Rich E Forum Admin

Location: Hertfordshire

Registered: 27 Apr 2005

Posts: 7,757

Status: Offline

Post #3
Is it a light knock or a loud bang? With the Eibach springs you need to use the standard bump stops or the springs will bottom out.

A light knock could be a drop link as said.

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Rich
Posted 23rd Feb 2011 at 15:51
jeffers Forum Admin

Location: Leeds

Registered: 14 Dec 2003

Posts: 3,702

Status: Offline

Post #4
My money's on the drop links if you've not used new when fitting the dampers, i find once they've been disturbed they tend to knock! Wink

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Posted 23rd Feb 2011 at 16:50
scottycollard

Junior User

Location: Totnes

Registered: 27 Sep 2010

Posts: 85

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Post #5
It's more of a loud bang it said on the instructions of the damper that it had bump stops fitted with bumpstops in
Posted 23rd Feb 2011 at 17:07
bennn

Seasoned Pro

Location: Shrewsbury

Registered: 05 Sep 2008

Posts: 2,705

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Post #6
Still think it could be the drop links. They can make quite a loud knocking. Id either buy some new ones (they are cheap) or go for a short steady drive without them on and see if the noise goes.

Did you replace the top mounts when you changed the springs over? As these can also cause a banging noise.

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Posted 23rd Feb 2011 at 17:13
adam b

Seasoned Pro

Location: The Nam

Registered: 24 Jan 2006

Posts: 12,828

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Post #7
Could be a loose balljoint into the hub or maybe the top nut on the shock isn't tight enough.

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Posted 23rd Feb 2011 at 20:42
Rich E Forum Admin

Location: Hertfordshire

Registered: 27 Apr 2005

Posts: 7,757

Status: Offline

Post #8
scottycollard wrote:
It's more of a loud bang it said on the instructions of the damper that it had bump stops fitted with bumpstops in

Yeah, they have hydraulic bump stops that prevent the damper rod from damaging the valves inside should it be fully compressed but if you've not fitted the standard bump stops then there's nothing to stop the spring from fully compressing.

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Rich
Posted 23rd Feb 2011 at 21:09
scottycollard

Junior User

Location: Totnes

Registered: 27 Sep 2010

Posts: 85

Status: Offline

Post #9
Ok many thanks guys I will fit the bumpstops back in cheers for all your help
Posted 23rd Feb 2011 at 21:30

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