Knocking noise from the near side suspension

Radders · 02-11-2009, 11:41 PM

following a trackday on saturday the M3 has developed a knocking noise from the front near side suspension. Suspect we hit a curb too hard, anyway jacked it up this evening and when i lift the hub the shock is moving about 2 mil at the top (the nut at the top of the shock, under the top mount) i removed the suspension and tightened this nut up which solved the problem until i drove it again the knock returned. i am guessing we have sheared two threads on the shock? Need to solve it quickly as I have a trackday at oulton on wednesday.

anyone got any experience with this happening?

forgot to add, its a KW suspension setup

shane@mbtech · 03-11-2009, 12:09 AM

Quote:

Originally Posted by Radders

following a trackday on saturday the M3 has developed a knocking noise from the front near side suspension. Suspect we hit a curb too hard, anyway jacked it up this evening and when i lift the hub the shock is moving about 2 mil at the top (the nut at the top of the shock, under the top mount) i removed the suspension and tightened this nut up which solved the problem until i drove it again the knock returned. i am guessing we have sheared two threads on the shock? Need to solve it quickly as I have a trackday at oulton on wednesday.

anyone got any experience with this happening?

forgot to add, its a KW suspension setup

Sounds like your shock is goosed, the top mounts are interchangeable, it could be your top mount though, fire it over to me mark ill have a look for you.

,

Ive fitted, removed, refitted my suspension between my csl and m3 about 50 times over the last few weeks i reckon i could do it in my sleep

We may be able to re-cut the thread.

Radders · 03-11-2009, 09:20 AM

Quote:

Originally Posted by lawsy

Sounds like your shock is goosed, the top mounts are interchangeable, it could be your top mount though, fire it over to me mark ill have a look for you.

,

Ive fitted, removed, refitted my suspension between my csl and m3 about 50 times over the last few weeks i reckon i could do it in my sleep

We may be able to re-cut the thread.

very kind of you mate, where are you?

i was thinking of putting a bigger nut on it, this could hold more thread and solve the problem?

_Nathan_ · 03-11-2009, 09:24 AM

Speak to KW - the dampers aren't exactly old!

Radders · 03-11-2009, 09:28 AM

Quote:

Originally Posted by _Nathan_

Speak to KW - the dampers aren't exactly old!

less than a year old i think.

_Nathan_ · 03-11-2009, 09:46 AM

Fitted in June.

02-11-2009, 11:41 PM	#1
Radders S5 - Full Throttle Join Date: Jan 2009 Location: Merseyside Posts: 371 Casino cash: $551	Knocking noise from the near side suspension following a trackday on saturday the M3 has developed a knocking noise from the front near side suspension. Suspect we hit a curb too hard, anyway jacked it up this evening and when i lift the hub the shock is moving about 2 mil at the top (the nut at the top of the shock, under the top mount) i removed the suspension and tightened this nut up which solved the problem until i drove it again the knock returned. i am guessing we have sheared two threads on the shock? Need to solve it quickly as I have a trackday at oulton on wednesday. anyone got any experience with this happening? forgot to add, its a KW suspension setup __________________ the CSL, better that a 70k Porsche!

03-11-2009, 09:24 AM	#4
_Nathan_ Driving it like I nicked it Join Date: Sep 2008 Posts: 2,099 Casino cash: $13060	Speak to KW - the dampers aren't exactly old!

03-11-2009, 09:46 AM	#6
_Nathan_ Driving it like I nicked it Join Date: Sep 2008 Posts: 2,099 Casino cash: $13060	Fitted in June.