New Clutch - Change Flywheel Too ?
Discussion
Hi there.
My 2007 Boxster S will probably be due a new clutch within the 5k or so, as it now has 45k on the clock. I've been told by my local Indy that theres a potential risk of clutch judder if the dual mass flywheel is past its best. They were not insisting that the flywheel should be replaced, but were simply pointing out that some people have had issues after fitting a new clutch.
Any recommendations whether I should consider replacing the flywheel as a precaution, or am I being paranoid ? Just wondered whether anyone's experienced this dilemma ?
Thanks for your help.
My 2007 Boxster S will probably be due a new clutch within the 5k or so, as it now has 45k on the clock. I've been told by my local Indy that theres a potential risk of clutch judder if the dual mass flywheel is past its best. They were not insisting that the flywheel should be replaced, but were simply pointing out that some people have had issues after fitting a new clutch.
Any recommendations whether I should consider replacing the flywheel as a precaution, or am I being paranoid ? Just wondered whether anyone's experienced this dilemma ?
Thanks for your help.
They can be checked at time of clutch replacement but this really only tells you if its buggered now. It is possible that the DMF will fail at a some time later date (no telling when) and this will mean that all the labour to do the clutch will be required to change the DMF. If it was my car I think I would be changing it.
I changed the flywheel on my Cayman S when I changed the clutch at 58k miles. There is a rotation test to check flywheel condition and mine was well outside tolerance (+/-25mm vs +/-10mm limit if I recall correctly). Despite failing the test, I don't think there was a noticeable improvement with the new one.
The clutch friction plate on my car did not seem to be very worn but the pedal was much lighter with the new one. My old release bearing literally fell apart when I removed it, and I also had to change the guide tube that the release bearing slides on as it was very worn. I also changed the rear main seal as a precaution.
If you're contemplating doing it yourself, it's all pretty straightforward apart from dealing with the inevitable broken exhaust studs at this mileage if it hasn't been off before. These doubled the time taken and quadrupled the cursing!
The clutch friction plate on my car did not seem to be very worn but the pedal was much lighter with the new one. My old release bearing literally fell apart when I removed it, and I also had to change the guide tube that the release bearing slides on as it was very worn. I also changed the rear main seal as a precaution.
If you're contemplating doing it yourself, it's all pretty straightforward apart from dealing with the inevitable broken exhaust studs at this mileage if it hasn't been off before. These doubled the time taken and quadrupled the cursing!
Thanks for your replies. Sounds as though this is something not to dismiss lightly so I will probably change the flywheel unless it's in pristine condition.
Cost for clutch alone is c.£850 I believe, but haven't asked for a quote yet. All I know is the clutch is not slipping, but the mechanism is showing early signs of wear. I'm inclined to change it rather than wait for it to fail. Also need to replace RMS whilst we're in there !
Cost for clutch alone is c.£850 I believe, but haven't asked for a quote yet. All I know is the clutch is not slipping, but the mechanism is showing early signs of wear. I'm inclined to change it rather than wait for it to fail. Also need to replace RMS whilst we're in there !
thegoose said:
Moosh said:
I would not change the DMF unless it needed changing. I am on my 4th clutch but original DMF. 68k miles.
You wore out THREE clutches in what, 60,000 miles? Less? 
1st clutch was standard and did not last long when I had the first upgrade to 520hp. 2nd clutch was (if I have remembered this right) a 964 clutch part. This did a little better until I upgraded to 673hp. 3rd clutch garage fitted standard clutch only due to the fact that I was off on a apls run the very next day so did not have time to source something stronger. Lasted about 2k miles. Now running the sachs 890nm. Muuuch better.
DRH986 said:
I changed the flywheel on my Cayman S when I changed the clutch at 58k miles. There is a rotation test to check flywheel condition and mine was well outside tolerance (+/-25mm vs +/-10mm limit if I recall correctly). Despite failing the test, I don't think there was a noticeable improvement with the new one.
The clutch friction plate on my car did not seem to be very worn but the pedal was much lighter with the new one. My old release bearing literally fell apart when I removed it, and I also had to change the guide tube that the release bearing slides on as it was very worn. I also changed the rear main seal as a precaution.
If you're contemplating doing it yourself, it's all pretty straightforward apart from dealing with the inevitable broken exhaust studs at this mileage if it hasn't been off before. These doubled the time taken and quadrupled the cursing!
+1 check the deflection and if less than 50% of tolerance, you can probably get another clutch change out of the flywheel before replacement is needed. The clutch friction plate on my car did not seem to be very worn but the pedal was much lighter with the new one. My old release bearing literally fell apart when I removed it, and I also had to change the guide tube that the release bearing slides on as it was very worn. I also changed the rear main seal as a precaution.
If you're contemplating doing it yourself, it's all pretty straightforward apart from dealing with the inevitable broken exhaust studs at this mileage if it hasn't been off before. These doubled the time taken and quadrupled the cursing!
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