[Ryan]

With all the "clunk club" people out there I was considering having some T-shirts printed up. Sorry ...no "click club" shirts.

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[jimmywhisker]

Flash et al,



Couple of interesting things that I would value your opinion on (or anyone else out there who can explain this).



In my relentless pursuit of hunting down my clunck/knock on choppy roads, I purchased sway bar bushing and steering rack bushings. Sway bushings were easily replaced but alas with no efffect on my clunk. When I went to replace the steering rack bushings I discovered that my steering rack fixings/brackets do not appear to match the parts catelogue. I took some pictures of the brackets as atatched. My car was delivered in Australia.



In addition, I don't think that my control arm has been installed correctly. I am sure that the washer on my right side (your passenger side) has not been replaced correctly when I had some work done in this area a whle back. Surely the tongue of the spacing washer should be sitting against the body of the control arm creating some tension and rigidity to the bolt? (the newer arm is on the right side). The left side looks like it is installed correctly in my opinion (the more blackened arm).



Any advice?? If I don't get rid of this clunk I may need to me committed.



Thanks in advance.



Cheers,



Peter

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[tamathumper]

If I understand what you're referring to, that's just the tab on the eccentric, and its position will be whatever was necessary to achieve the correct alignment settings for your car.



P.S. It looks like you have one newer castor block, and one old one?

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[jimmywhisker]

Thanks TT,



The new castro block was One of the few jobs done by the previous owner. I am not sure i would have gone down this route of just chaging one, but my mechanic assures me that they both look in servicable order. Seems like the clunk club could be a bottomless pit of frustration.



Cheers,

Peter

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[flash]

it looks like the steering rack bushing is missing

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[jimmywhisker]

Ok, i have finally resolved my clunk. The most disconcerting of these cluncks was caised by failing engine mounts. Whilst they were not completely shot, they were past there use by date and the root cause of my issue. The Car now runs much smoother and feels tighter over choppy roads - and the clunck is gone!! The secondary rattle was a worn armiture on the a/c fan blower which was affected also by the additional vibration.



Feels like a new one - in fact it almost whould as the front end has has a lot of attention getting to this point. Lets pray for a hassle free 2013.



Thanks again for all the advice. It was a post that I read that mentioned the symptom of a vibrating headlight that finally conveniced me to replace the mounts.



Cheers,



Peter

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[hot968]

great photos I can't figure out how to put pictures in my post, some thing about the size of photos, glad u found the problem was

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[Langley968]

Started looking around the "old" topics to see if I could find something that would assist me in figuring out the noise I heard yesterday. Scrolled through this entire topic, which made for interesting reading, but none of the "clunks" seemed to be a match for the one coming from my 968.

Here is what I experienced yesterday. After driving for about an hour with no problems (highway and city), suddenly at slower speeds, while going up a slight incline (with some increased torque), there was a slight metallic clunking coming from what seemed the rear passenger area. If I let off the gas or shifted into neutral, NO abnormal sounds. When I sped up the sound also seemed to dissapear.

My wife reminded me that last year we had a similar incident. On that occasion, I had jacked the rear/passenger side up, spun the wheel back and forth, applied lateral pressure to the wheel, and after not being able to pin point the sound to anything, I dropped the car back down. And... never heard the sound again! It almost seemed like the suspension pressure had been re-aligned and whatever had caused the ticking/cluncking sound was gone!

So... I stopped at a gas station and jacked the car up. I looked under the car for something loose, spun the wheel back and forth, applied the lateral pressure, applied pressure to the shaft that comes out of the gear box, stuck my fingers in behind the inner shroud of the brake disk to see if there was a rock in there, etc...

Nothing seemed to be wrong. Dropped the car back down, and... NO MORE NOISE! How can that be??? Drove about 40 miles home, fast and slow, listening for any sounds (getting spooked by a rattling trailer that was being towed by the vehicle next to me on a bridge!!!). Never heard the sound again. Somehow, by jacking the vehicle up and then dropping it down, something seems to have been re-aligned.

After reading through the posts in this thread, I wonder if it is some rubber bushing that is worn out. It may be that after passing through a bump in the road, something got thrown out and it caused the noise to start up.

I think I will stop procrastinating and order my (Dannmar MaxJax 2-post) Auto Lift today. That way I can get under there and inspect the area better.

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[Cloud9...68]

When I was chasing down a clunk on one of my vehicles (which turned out to be a bushing), someone recommended picking up a small remote microphone that communicates with a set of headphones and mounting it against the various components you're suspicious might be the origin of the noise. Drive around in situations that would cause the clunk, and listen for it through the headphones. It seems that the optimal way to do this would be to have someone riding with you to listen for the noise to confirm that it's happening. If you don't hear it through the headphones, move the microphone to the next candidate spot, and repeat until you've pinpointed the origin of the noise. I didn't have to resort to this method because I stumbled into the source of my particular problem by visual inspection, but it sounds like it could be worth a try. It does depend on trial and error, but at least it could rule a bunch of sources out.

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[DaveN]

Sounds like a plan Jake. Can't help with the noise but a friend with a lift is awesome :-P

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[blau]

Clunk. ebay Ricochet-brand 968 M030 outer polyurethane swaybar bushings. Not good considering I put these on at the end of May and have only done three autocrosses since then. Just ordered an OEM set to replace them before PCA Zone 1 autocross this weekend. The inner bushings and the steering rack bushings I got from the same company are all holding up fine with no damage...

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[ds968]

Awesome news ! I'm resigning from the clunk club ; after a couple of years listening to that annoying noise, Trevor ( PorscheG96 ) found the problem: the small bolts on the V brace holding the front sway bar to the frame were loose. After having inspected every joint, every bushing, every other component of the front suspension that was visible and re-torquing every screw and bolt in sight, I have no idea how those two bolts could have been overlooked...but that was it folks ! I am stoked ! The car is, once again, a pleasure to drive .

Yaaaaaa-hoooooo. ! ! :-)

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[benspeeder]

I have a new noise and realized that I never posted the fix on my old noise. My previous clunk Was from worn out polybronze (?) bushings that were part of the assembly that bolted up the rear to the chassis. I don't fully recall the fix and remember not quite getting it when the shop explained but happily wrote a large check and never had the noise again.



The new noise is a creak when I move the steering left and right and I also get the noise under hard braking and accelereration. Wondering if this is a steering bushing? Car has been nut and bolted by Powertech recently. Sound is coming from driver left almost under the pedals.



Would love a diagnostic suggestion list!!!

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