Lower Control Arms?
06-10-2020, 10:14 PM
#16
Front strut mounts don't looked cracked or anything. Hopefully it's not the front strut mounts, looks like a big job to remove the struts.
Take a look at this.
Another version
https://rennlist.com/forums/997-foru...r-997-1-a.html
Parts + install documentation (bottom)
https://www.elephantracing.com/porsc...l-arm-wishbone
06-11-2020, 09:49 AM
#17
At 9 & 3 I can shake both front wheels, a lot. I have a video I can share of me doing it, want me to post the video? 12 & 6 = zero shake
Front strut mounts don't looked cracked or anything. Hopefully it's not the front strut mounts, looks like a big job to remove the struts.
Front strut mounts don't looked cracked or anything. Hopefully it's not the front strut mounts, looks like a big job to remove the struts.
If the ball joint (where control arm connects to the wheel hub or knuckle) or the control arm were bad then I think you it would seem loose at 6&12. I'm not an expert and you should definitely have someone look at it. If it were me I would focus on the tie-rods.
They are also the easiest and lest expensive to replace. Get an alignment if you replace any component.
Good luck, let us know how you make out.
06-11-2020, 04:24 PM
#18
Rennlist Member
997TT owner here: I just replaced the front strut top bushings (at only 54K miles) and found the difference in ride to be noticeably better. My strut mounts weren't obviously shot when looking from the outside (like yours), but upon disassembly they were cracked, but not completely failed. I also replaced the bump stop and strut top bearing while I was in there. The strut top bearings were filthy, but probably could have been cleaned up, regreased and reassembled, but for the relatively low cost of new bearings I'm OK with just replacing them.
The other thing I'd note is that I'd previously elected to leave the anti-vibration pucks off the back of some new brake pads I installed. Big mistake -- the brake pads rattled around without the anti-vibration pucks. It was most noticeable as a clunk on hard bumps or after changing directions (like backing out of the drive) as the pads would shift orientation radially in the caliper. Front end is MUCH quieter now.
The other thing I'd note is that I'd previously elected to leave the anti-vibration pucks off the back of some new brake pads I installed. Big mistake -- the brake pads rattled around without the anti-vibration pucks. It was most noticeable as a clunk on hard bumps or after changing directions (like backing out of the drive) as the pads would shift orientation radially in the caliper. Front end is MUCH quieter now.
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997ajk (06-11-2020)
06-11-2020, 06:42 PM
#19
Note: This is a 997.2 C4S with 70k miles
I have a subtle clunking/clicking sound from the front of my car - both sides - started on driver's side - but now it's both sides. The sound can only be heard at low speeds on small bumps. At higher speeds I never hear it - but I assume it's still happening - just the road noise is probably canceling the sound out. I also never hear it on big bumps.
At first I thought it was lower control arms. But based on this thread (https://rennlist.com/forums/997-foru...n-clunk-2.html) it looks like it could be:
1) Lower control arms
2) Sway bar links
3) Both of those
4) Upper strut mounts
5) Loose tie rod
Where should I start? Is it possible something is loose and I could just tighten it? I'm gonna DIY
I have a subtle clunking/clicking sound from the front of my car - both sides - started on driver's side - but now it's both sides. The sound can only be heard at low speeds on small bumps. At higher speeds I never hear it - but I assume it's still happening - just the road noise is probably canceling the sound out. I also never hear it on big bumps.
At first I thought it was lower control arms. But based on this thread (https://rennlist.com/forums/997-foru...n-clunk-2.html) it looks like it could be:
1) Lower control arms
2) Sway bar links
3) Both of those
4) Upper strut mounts
5) Loose tie rod
Where should I start? Is it possible something is loose and I could just tighten it? I'm gonna DIY
It's Lower control arms (parts 7 and 8 in the diagram) at 99 percent.
I had it in my previous 997.1 and starting now in my GTS :-/