Help diagnosing a suspension clonk
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jonno1
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Re: Help diagnosing a suspension clonk
I think I fixed it!!!
There were three very thin washers in the bottom of the strut. I added another thick washer and a glob of grease. The clonk is gone!
There is now the faintest clonk on the other side which was obviously being masked by the louder one so will do the other side as well.
Oh the joy! The joy!
Thanks to all for the fantastic advice!!!
There were three very thin washers in the bottom of the strut. I added another thick washer and a glob of grease. The clonk is gone!
There is now the faintest clonk on the other side which was obviously being masked by the louder one so will do the other side as well.
Oh the joy! The joy!
Thanks to all for the fantastic advice!!!
1958 356A Coupe
987 Gen 2 Boxster
987 Gen 2 Boxster
- hot66
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Re: Help diagnosing a suspension clonk
Success. 

James
1973 911 2.4S
1993 964 C2
2010 987 Spyder
1963 Honda C100 Supercub
Its not how fast you go, but how you go fast
1973 911 2.4S
1993 964 C2
2010 987 Spyder
1963 Honda C100 Supercub
Its not how fast you go, but how you go fast
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Gary71
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Re: Help diagnosing a suspension clonk
Excellent! You’ll be able to do the other side in half the time now 

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Lightweight_911
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Re: Help diagnosing a suspension clonk
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Andy
“Adding power makes you faster on the straights;
- subtracting weight makes you faster everywhere”
“Adding power makes you faster on the straights;
- subtracting weight makes you faster everywhere”
- inaglasshouse
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Re: Help diagnosing a suspension clonk
Boom! Well played. You'll enjoy the first clonk-free drive...
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jonno1
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Re: Help diagnosing a suspension clonk
On even a short run its just such a difference.
Two garages! Two! It makes you wonder!!!
Two garages! Two! It makes you wonder!!!
1958 356A Coupe
987 Gen 2 Boxster
987 Gen 2 Boxster
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911hillclimber
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Re: Help diagnosing a suspension clonk

73T 911 Coupe, road/hillclimber 3.2L
Lola t 492 / 3.2 hillclimb racer
Boxster 987 Gen II 2.9
Lola t 492 / 3.2 hillclimb racer
Boxster 987 Gen II 2.9
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jonno1
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Re: Help diagnosing a suspension clonk
I can 100 per cent confirm, after extensive testing....there is no clonk. Hard to describe the joy.
Untitled by CARMANWAITINGINTHESKY, on Flickr
Untitled by CARMANWAITINGINTHESKY, on Flickr
Untitled by CARMANWAITINGINTHESKY, on Flickr
Untitled by CARMANWAITINGINTHESKY, on Flickr1958 356A Coupe
987 Gen 2 Boxster
987 Gen 2 Boxster
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alfietom
- DDK slapper chatter
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Re: Help diagnosing a suspension clonk
Fixed?? Gutted! I've loved following this Thread.....
So Chuffed its sorted, Nice One!
So Chuffed its sorted, Nice One!
1973 Porsche 911T
2011 Porsche 997.2 Carrera 4S
2012 Boxster 981 - (Wifes Summer Drive)
2019 Renault Megane RS 300 Trophy
2021 Cupra Leon
2021 Alpine A110 GT
2011 Porsche 997.2 Carrera 4S
2012 Boxster 981 - (Wifes Summer Drive)
2019 Renault Megane RS 300 Trophy
2021 Cupra Leon
2021 Alpine A110 GT
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jonno1
- DDK rules my life!
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Re: Help diagnosing a suspension clonk
Thanks! And yes, sorry to all the clonk followers, I know its been riveting stuff 
1958 356A Coupe
987 Gen 2 Boxster
987 Gen 2 Boxster
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911hillclimber
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Re: Help diagnosing a suspension clonk
These things need a real road test and then some more.
Great to see such a nice car out there getting dirty quietly.
!
Hope you have let the garages involved in on the fix.
Great to see such a nice car out there getting dirty quietly.
Hope you have let the garages involved in on the fix.
73T 911 Coupe, road/hillclimber 3.2L
Lola t 492 / 3.2 hillclimb racer
Boxster 987 Gen II 2.9
Lola t 492 / 3.2 hillclimb racer
Boxster 987 Gen II 2.9
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jonno1
- DDK rules my life!
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- Joined: Fri Jan 24, 2014 5:36 pm
- Location: Herts, UK
Re: Help diagnosing a suspension clonk
I have - I even sold the newly bought stethoscope to one of them911hillclimber wrote:These things need a real road test and then some more.
Great to see such a nice car out there getting dirty quietly.!
Hope you have let the garages involved in on the fix.
And yes, more dirt needed - less polishing, more driving. The new tyres need a good scrubbing!
Untitled by CARMANWAITINGINTHESKY, on Flickr1958 356A Coupe
987 Gen 2 Boxster
987 Gen 2 Boxster
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Lightweight_911
- Nurse, I think I need some assistance
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Re: Help diagnosing a suspension clonk
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Great choice of tyre (Avon CR6ZZ) ...
If you haven't already done it, it's worth checking that they've been correctly fitted (orientation-wise) - even top tyre suppliers/fitters (including some very well-known names) have been known to get it wrong ...
The 4-digit code of the sidewall needs to face to the right on the rear tyres & to the left on the fronts - ie like this

.
Great choice of tyre (Avon CR6ZZ) ...
If you haven't already done it, it's worth checking that they've been correctly fitted (orientation-wise) - even top tyre suppliers/fitters (including some very well-known names) have been known to get it wrong ...
The 4-digit code of the sidewall needs to face to the right on the rear tyres & to the left on the fronts - ie like this

.
Andy
“Adding power makes you faster on the straights;
- subtracting weight makes you faster everywhere”
“Adding power makes you faster on the straights;
- subtracting weight makes you faster everywhere”
- bjmullan
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Re: Help diagnosing a suspension clonk
No more clonk thread
No more clonk

No more clonk
Brendan
1969 911T
2018 718 Boxster
Pray, hope and don't worry - Padre Pio
1969 911T
2018 718 Boxster
Pray, hope and don't worry - Padre Pio
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jonno1
- DDK rules my life!
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Re: Help diagnosing a suspension clonk
Just to be clear - that diagram means the week/year code should be on the inside of the wheel (i.e not visible) or the outside of the wheel (visible)? IGNORE ME - its the 5 digit code you are referring to....Lightweight_911 wrote:.
Great choice of tyre (Avon CR6ZZ) ...![]()
If you haven't already done it, it's worth checking that they've been correctly fitted (orientation-wise) - even top tyre suppliers/fitters (including some very well-known names) have been known to get it wrong ...
The 4-digit code of the sidewall needs to face to the right on the rear tyres & to the left on the fronts - ie like this
.
They are a great (expensive) tyre - noticeably better than the Vredestein Sprint Classics that were on it before.
1958 356A Coupe
987 Gen 2 Boxster
987 Gen 2 Boxster

