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Author Subject: shock moves in the hub?
vts_tibi

Seasoned Pro

Location: Nuneaton

Registered: 27 Apr 2007

Posts: 1,194

Status: Offline
Post #1
Hi Guys,

Pretty unusal thing I have with my car... The front left hub doesn't secure the shock as it should.

When the shock is installed, the bolt tightened it is silent for a few bumps, but after a while it generates a knocking sound when going over bumps with higher speed.

We've examined what is the problme and it's clearly visible that the shock absorber is not secured by the hub properly, so the shock could slide a bit doen into the hub, and as the AST shock has a small lip it ctaches ont eh hub and makes an awful knocking noise.

We've measured the free diameter of the hub (at the place where the shock is secured) and it was 2mm bigger than the shock body. But I still say with the securing bolt it SHOULD hold the shock.

But it clearly doesn't...

Now.. we've tried to make the hole a bit smaller by tightening the bolt just a little without the shock in place. It made the slot smaller, and it was tighter with the shock absoerber in, but after a few kilomteres it started that annyoing sound again!

Anyone had such problem before?

What could be the solution for this?

It is really getting on my nerves now!!!!

________________________________________

VTS
best 60' : 2.272
best 1/8 ET : 9.375 @ 74.42mph
best 1/4 ET: 14.603 @ 97.047mph

Team Trackday™
Posted 14th Sep 2010 at 01:51
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welshpug!

Capt Pedantic

Location: Bigend, Wales.

Registered: 27 Mar 2007

Posts: 25,838

Status: Offline
Post #2
have you compared with the other side?

never had this, certainly shouldn't happen.

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Posted 14th Sep 2010 at 01:54
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vts_tibi

Seasoned Pro

Location: Nuneaton

Registered: 27 Apr 2007

Posts: 1,194

Status: Offline
Post #3
the other side is fine, no movement at all!

when I've swapped the original shocks with the ASTs I saw signs of shock movement at the left side (a few vertical scratches on the shock body where it is inside the hub )

I've even tried with a new bolt...

________________________________________

VTS
best 60' : 2.272
best 1/8 ET : 9.375 @ 74.42mph
best 1/4 ET: 14.603 @ 97.047mph

Team Trackday™
Posted 14th Sep 2010 at 02:02
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welshpug!

Capt Pedantic

Location: Bigend, Wales.

Registered: 27 Mar 2007

Posts: 25,838

Status: Offline
Post #4
I meant have you measured the dampers?

________________________________________

need a part number? get on here - http://public.servicebox.peugeot.com

Bring on the Trumpets.

Posted 14th Sep 2010 at 02:54
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adam b

Seasoned Pro

Location: The Nam

Registered: 24 Jan 2006

Posts: 12,828

Status: Offline
Post #5
Has the thread been damaged on the bolt at all?

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Nothing to see here
Posted 14th Sep 2010 at 04:08
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mark-house

Seasoned Pro

Location: Bury St Edmunds

Registered: 07 Apr 2009

Posts: 1,096

Status: Offline
Post #6
adam b wrote:
Has the thread been damaged on the bolt at all?


That was my first thought too have you checked the threds in the hub and on the bolt. if there is damage then over those few km's the bolt might be coming loose in the hub and allowing the shock to move.

________________________________________

Peugeot 306 GTi 6
BMW 320 td compact M-sport
1967 Mini Cooper
1990 Jaguar XJR 4.0
Posted 14th Sep 2010 at 04:50
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welshpug!

Capt Pedantic

Location: Bigend, Wales.

Registered: 27 Mar 2007

Posts: 25,838

Status: Offline
Post #7
adam b wrote:
Has the thread been damaged on the bolt at all?


vts_tibi wrote:

I've even tried with a new bolt...



Razz

mark-house wrote:

That was my first thought too have you checked the threds in the hub and on the bolt.



no threads in the hub bar the brake caliper, abs sensor, and brake hose bracket.


either the damper body is the wrong size (i.e smaller than the other side), or the hub carrier is damaged.

________________________________________

need a part number? get on here - http://public.servicebox.peugeot.com

Bring on the Trumpets.

Posted 14th Sep 2010 at 05:16
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phillipm

Seasoned Pro

Location: Rotherham

Registered: 15 Oct 2006

Posts: 20,607

Status: Offline
Post #8
Or it's come loose at some point and the strut casing has splayed it out past the point of return.

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Posted 14th Sep 2010 at 05:18
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