Anyone want to throw in a suggestion?
Discussion
olly22n said:
I have heard that the rear boot lid can cause squeaks.
Have you tried driving with it open?
Olly, you're a genius. I'm now at least in the neighbourhood of the thing after trying that. For someone who's spannered all sorts of stuff on that car, it never occurred to me to try that. Have you tried driving with it open?
Now I just have to pin down the exact spot & do something to it.Apply some heavy grease to the rear lid catch - in the U shaped part on the lid itself; known to creak and squeak while driving and can be quiet for miles before getting going.
Also the intake airbox mounts in the engine bay can cause noises - there was a bulletin issued for remedial measures (tightening the mounts for the box to the chassis). The box frets against the body causing a chirping noise.
Also the intake airbox mounts in the engine bay can cause noises - there was a bulletin issued for remedial measures (tightening the mounts for the box to the chassis). The box frets against the body causing a chirping noise.
Pope said:
Apply some heavy grease to the rear lid catch - in the U shaped part on the lid itself; known to creak and squeak while driving and can be quiet for miles before getting going.
Also the intake airbox mounts in the engine bay can cause noises - there was a bulletin issued for remedial measures (tightening the mounts for the box to the chassis). The box frets against the body causing a chirping noise.
That's great stuff. Thanks Pope.Also the intake airbox mounts in the engine bay can cause noises - there was a bulletin issued for remedial measures (tightening the mounts for the box to the chassis). The box frets against the body causing a chirping noise.
Pope said:
Apply some heavy grease to the rear lid catch - in the U shaped part on the lid itself; known to creak and squeak while driving and can be quiet for miles before getting going.
Also the intake airbox mounts in the engine bay can cause noises - there was a bulletin issued for remedial measures (tightening the mounts for the box to the chassis). The box frets against the body causing a chirping noise.
Nope. Found the grommet in the airbox that squeaks, greased it up & lubed the boot stricker plate & catch, still squeaking. Bloody thing.Also the intake airbox mounts in the engine bay can cause noises - there was a bulletin issued for remedial measures (tightening the mounts for the box to the chassis). The box frets against the body causing a chirping noise.
New top mounts this year, so I'd hope not. It's an elusive bugger that's for sure. Since I stopped it by opening the boot, that's the obvious place to focus. Logically, since I've had all the trim off, it points at the contact between the boot lid & the seal round the boot but like you say, stranger things.
I have tried the seat, that's sound afaict. The seal I have sprayed with silicone, the next thing will be to wedge some material between the boot & the seal I think, see if I can get anywhere with mechanically interfering between the two parts.
Edited to add: While it's all negative for now, but you lot have pushed me in directions I hadn't considered, so it's all appreciated.Keep 'em coming.
Edited to add: While it's all negative for now, but you lot have pushed me in directions I hadn't considered, so it's all appreciated.Keep 'em coming.
Edited by Edwin Strohacker on Wednesday 22 February 07:44
Yes, took the struts out last summer & greased up the cups at either end as it goes.. I'm kind of running out of car to fiddle with, but didn't try anything else today as Doris stopped play.
It's due a service in a month & I will take it to the OPC, so I might ask them if they can have a look - I know some have the capability to install microphones for rattle detection. One question - anyone experienced squeaks from the door cards? It's an obvious large piece of trim to look at.
It's due a service in a month & I will take it to the OPC, so I might ask them if they can have a look - I know some have the capability to install microphones for rattle detection. One question - anyone experienced squeaks from the door cards? It's an obvious large piece of trim to look at.
olly22n said:
Good work brother!
I spoke too soon, the squeak came back. However, determined to fix it, I went back to researching it, discovering that it's very common on the 997 & 987 so I went back to it & have now finally found it & stopped it for good. I'm going to write it up for the benefit of anyone else who gets this chirruping noise on our crappy roads.
It turns out the quarter light window is secured by three bolts & a blind rivet. It's the bottom bolt that houses the blind rivet that squeaks as the body flexes. To access it, it's a simple job to use a trim tool to carefully upwardly pry off the seatbelt tower cover. This will reveal a 15mm bolt that secures the seatbelt guide & perpendicular to it, a 13mm top hat bolt through which the blind rivet runs.
I am told that simply tightening the 13mm bolt will snap the rivet & you will end up with a £££ opc bill to remove the window & refit it with a new rivet. However, the rivet has a hex head & you may use an Allen key to hold it still whilst tightening the 13mm bolt in very small increments. I've done this, gone for a test drive over the roughest road I can find & I'm saying the car is fixed, It's item 10 in the diagram below & another view of the site I pinched from Planet 9.
The whole thing took ten minutes to sort in the end, I hope it helps if you get the same problem.
Well done for persevering with this. Rattles and squeaks can completely ruin the driving/ownership experience.
However..... as hopeless pictures go, that one just about takes the biscuit ! !
So after many hours searching for suitable images on the web, here in all its glory is an image showing the securing fittings/adjusters for the Cayman rear quarterlights. Not sure if the Gen 1- & 2 items are the same, but I'd be amazed if they're different :
P.S Just had a further look at the line drawing you've posted off P9. Part 10 is a pop rivet that goes outside the car and secures the end of the rubber trim. I've yet to see a pop rivet with a hex head or socket drive, let alone an adjustable one .....
I'd suggest what you've done is adjusted the tension on the main quarterlight glass securing fittings (as you said there's a hex nut and a hex socket, this makes sense as the hex socket can be seen at the top right in the image I've posted) My guess is they're the same adjusters as the 996/977 items and allow you to move the glass in ad out and in the process put more or less tension on the rubber seal behind it to stop wind noise, align its depth with the door glass and ensure it doesn't leak water.
However..... as hopeless pictures go, that one just about takes the biscuit ! !
So after many hours searching for suitable images on the web, here in all its glory is an image showing the securing fittings/adjusters for the Cayman rear quarterlights. Not sure if the Gen 1- & 2 items are the same, but I'd be amazed if they're different :
P.S Just had a further look at the line drawing you've posted off P9. Part 10 is a pop rivet that goes outside the car and secures the end of the rubber trim. I've yet to see a pop rivet with a hex head or socket drive, let alone an adjustable one .....
I'd suggest what you've done is adjusted the tension on the main quarterlight glass securing fittings (as you said there's a hex nut and a hex socket, this makes sense as the hex socket can be seen at the top right in the image I've posted) My guess is they're the same adjusters as the 996/977 items and allow you to move the glass in ad out and in the process put more or less tension on the rubber seal behind it to stop wind noise, align its depth with the door glass and ensure it doesn't leak water.
Edited by Slippydiff on Monday 20th March 18:03
I'd go along with that, it certainly looks like it close up & one of those components you'd guess Porsche wouldn't go to great lengths to change from one iteration to another, so I was relaying feedback from guys in Planet 8 who warned about the rivet, must admit I've never heard of a blind rivet with a hex head either.
Proof though of the absolute pain of hunting down a rattle, when I think of the extent to which I've stripped that car down looking for this & moreover the hours I've put in, hence a brief write up to point anyone else in the right direction.
By the way, the guy I pinched that picture off was apologising for it's quality.
Proof though of the absolute pain of hunting down a rattle, when I think of the extent to which I've stripped that car down looking for this & moreover the hours I've put in, hence a brief write up to point anyone else in the right direction.
By the way, the guy I pinched that picture off was apologising for it's quality.
Edited by Edwin Strohacker on Monday 20th March 18:52
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