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Author Topic: possible problem with Bilstein b4  (Read 2251 times)

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feeutfo

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possible problem with Bilstein b4
« on: 14 February 2013, 10:05:09 »
This a Bilstein b4 front shock "spring cup" as I call it. The rub line above the chisel shows where its been rubbing on the outboard vertical face of the wheel arch liner. Think I found the hollow clonk as the suspension compresses.  :(  :)

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feeutfo

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Re: possible problem with Bilstein b4
« Reply #1 on: 14 February 2013, 10:08:42 »
Oh, and its the same both side btw.
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05omegav6

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Re: possible problem with Bilstein b4
« Reply #2 on: 14 February 2013, 10:26:07 »
Weak springs/soft shocks/too little camber :-\

Unlikely to be the third one, but how many miles have the struts/springs done?
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feeutfo

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Re: possible problem with Bilstein b4
« Reply #3 on: 14 February 2013, 12:05:12 »
Quote from: ex taxi al on 14 February 2013, 10:26:07
Weak springs/soft shocks/too little camber :-\

Unlikely to be the third one, but how many miles have the struts/springs done?
They where both new, about 18months ago. Set up is as wim.

I need to measure the distance from the outboard edge of the spring cup to the shock shaft and compare with oe.

I suspect the Billy's spring cup is too wide. :-\
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05omegav6

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Re: possible problem with Bilstein b4
« Reply #4 on: 14 February 2013, 12:21:38 »
That would suggest that they're not exactly compatible with the Irmy/OE springs :-\
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feeutfo

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Re: possible problem with Bilstein b4
« Reply #5 on: 14 February 2013, 12:31:02 »
Quote from: ex taxi al on 14 February 2013, 12:21:38
That would suggest that they're not exactly compatible with the Irmy/OE springs :-\
Mmmmno, don't think its that, the rim doesn't support the spring, there's a moulded rubber pad shaped to the sping base that supports the springs position.

I think the rim is there if the spring brakes so it can't skew sideways. :-\
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feeutfo

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Re: possible problem with Bilstein b4
« Reply #6 on: 14 February 2013, 12:44:05 »
Other possible though is that the top mount has collapsed or is faulty.

I'd be surprised though. 
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05omegav6

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Re: possible problem with Bilstein b4
« Reply #7 on: 14 February 2013, 17:16:20 »
Quote from: chrisgixer on 14 February 2013, 12:44:05
Other possible though is that the top mount has collapsed or is faulty.

I'd be surprised though. 

IME, that would show through the steering and general handling. Any play in the leg when it's up in the air :-\
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TheBoy

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Re: possible problem with Bilstein b4
« Reply #8 on: 14 February 2013, 17:25:38 »
A fair few use B4s, so would have thought this would have shown up before?

Unless others do not use the car to its capability...
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feeutfo

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Re: possible problem with Bilstein b4
« Reply #9 on: 14 February 2013, 18:46:24 »
Quote from: TheBoy on 14 February 2013, 17:25:38
A fair few use B4s, so would have thought this would have shown up before?

Unless others do not use the car to its capability...
remember that knock/thump over the speed bumps in Brackley...?
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TheBoy

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Re: possible problem with Bilstein b4
« Reply #10 on: 14 February 2013, 18:50:59 »
Quote from: chrisgixer on 14 February 2013, 18:46:24
Quote from: TheBoy on 14 February 2013, 17:25:38
A fair few use B4s, so would have thought this would have shown up before?

Unless others do not use the car to its capability...
remember that knock/thump over the speed bumps in Brackley...?
A very 'dull' knock, iirc?
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Grumpy old man

feeutfo

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Re: possible problem with Bilstein b4
« Reply #11 on: 14 February 2013, 19:37:50 »
Quote from: TheBoy on 14 February 2013, 18:50:59
Quote from: chrisgixer on 14 February 2013, 18:46:24
Quote from: TheBoy on 14 February 2013, 17:25:38
A fair few use B4s, so would have thought this would have shown up before?

Unless others do not use the car to its capability...
remember that knock/thump over the speed bumps in Brackley...?
A very 'dull' knock, iirc?
thats the one, dull because its plastic
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feeutfo

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Re: possible problem with Bilstein b4
« Reply #12 on: 14 February 2013, 19:39:01 »
the suspension only needs to compress an inch for the spring cup to meet the wheel arch liner
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05omegav6

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Re: possible problem with Bilstein b4
« Reply #13 on: 14 February 2013, 20:09:31 »
That's not alot :-\
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feeutfo

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Re: possible problem with Bilstein b4
« Reply #14 on: 14 February 2013, 20:42:27 »
Quote from: ex taxi al on 14 February 2013, 20:09:31
That's not alot :-\
i'll have a look at some point
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