997 GT3 Creaking front suspension Advice please
997 GT3 Creaking front suspension Advice please
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Discussion

evodarren

Original Poster:

428 posts

162 months

Monday 29th January 2018
quotequote all
I seem to be getting a creak at low speed on the N/S suspension. Only happens when I been for a longish drive.
OPC looked at the car briefly and think it maybe the lower control arm. The mechanic didn't seem that positive. Cost fitted £1,150.00
I have came across a few post where people have found its the Bilstein damper that need a reconditioning.
I had my Geo set up by Centre Gravity last June and Chris Franklins name keeps popping up for diagnosing the problem.
Anyone had this problem, as I do not have much faith in the OPC. I have OPC warranty but this is not covered as wear and tear.
Thanks
Darren

poppopbangbang

2,577 posts

169 months

Monday 29th January 2018
quotequote all
You can re-grease the coffin arm ball joints (which is the usual cause of creaks as the grease drys out) with a syringe, some appropriate grease and a couple of hours on a Sunday afternoon. Well worth a try before replacing stuff as the creak usually occurs well before any significant wear to the joint does.

If that doesn't solve it then the joint may be worn, you can test this by going from lock stop to lock stop, if it squeaks as the joint goes through the last 20 degrees or so of travel (as the nose jacks) then it's more than likely coffin arms. Alternatively if it squeaks on compression with the wheels straight (like over a speed bump for example) it may well be the damper or the top mount.

short-shift

347 posts

207 months

Monday 29th January 2018
quotequote all
Hi Darren

This is a relatively well known problem and it's internal to the Bilstein damper (strut). From memory it's a bush that wears and needs to be replaced within the damper assembly. It can be a nightmare to have diagnosed but trust me on this - it will be the dampers (upper bush I seem to recall).

I had it on my 997 GT3 and, after numerous top mount changes (the OPC repair of choice for anything like this!) it was fixed for good with new dampers which, in my case, I managed to get replaced under the Porsche Extended Warranty. But if this isn't an avenue open to you, your dampers can be cost-effectively refurbished and rebuilt by Bisltein. If you're not up for removing them from the car yourself then Chris at CG is the place to go - he ships them off to Bilstein just down the road for refurb and then refits.

I'll see if I can find my old posts on this. (I think they were in the 911uk forum...)

James

Edited to say - email sent with further details

Edited by short-shift on Monday 29th January 07:34

v8ksn

4,713 posts

212 months

Monday 29th January 2018
quotequote all
evodarren said:
I seem to be getting a creak at low speed on the N/S suspension. Only happens when I been for a longish drive.
OPC looked at the car briefly and think it maybe the lower control arm. The mechanic didn't seem that positive. Cost fitted £1,150.00
I have came across a few post where people have found its the Bilstein damper that need a reconditioning.
I had my Geo set up by Centre Gravity last June and Chris Franklins name keeps popping up for diagnosing the problem.
Anyone had this problem, as I do not have much faith in the OPC. I have OPC warranty but this is not covered as wear and tear.
Thanks
Darren
Fill ya boots lad thumbup

Is this the sound? - https://www.youtube.com/watch?v=ctK8S8yzxdU&fe...

https://www.pistonheads.com/gassing/topic.asp?t=13...

https://www.pistonheads.com/gassing/topic.asp?h=0&...

https://www.pistonheads.com/gassing/topic.asp?t=15...


Porsche911R

21,146 posts

293 months

Monday 29th January 2018
quotequote all
10k refresh ;-)

evodarren

Original Poster:

428 posts

162 months

Monday 29th January 2018
quotequote all
Porsche911R said:
10k refresh ;-)
Probably not. only done 31,000 and not had a hard life

evodarren

Original Poster:

428 posts

162 months

Monday 29th January 2018
quotequote all
v8ksn said:
The sound is the same, but only happens when done a few miles. Does not do it like the video turning the wheel. Just creaks while going slow after a good run.

Many thanks for the links

Slippydiff

16,276 posts

251 months

Monday 29th January 2018
quotequote all
Damper rod bushes, or

Anti roll bar drop link balljoints, or

Anti roll bar bushes, or

Top mounts, or

Coffin arm inner bushes, or

Coffin arm outer balljoints.

Many only occur after several miles driving has heated the dampers and/or ball joint grease etc up.

Porsche911R

21,146 posts

293 months

Monday 29th January 2018
quotequote all
Slippydiff said:
Damper rod bushes, or

Anti roll bar drop link balljoints, or

Anti roll bar bushes, or

Top mounts, or

Coffin arm inner bushes, or

Coffin arm outer balljoints.

Many only occur after several miles driving has heated the dampers and/or ball joint grease etc up.
best to do it all on a >10 year old GT3 imo ;-) I hate worn parts, ruins the cars but as it wears out over time people only change when broken :-(

short-shift

347 posts

207 months

Monday 29th January 2018
quotequote all
No - it's simply the top bush in the Bilstein damper.

Really, it is...

James