09-16-2013, 07:49 AM
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#1
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Registered User
Join Date: Jul 2013
Location: Asheville, NC
Posts: 102
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PorscheBound,
Here is update on my car - in summary I think we may have similar issues. My concern was rattling from back of car on accel/decel. I replaced motor mount assuming the rattle was from engine moving around. This definitely helped but some of the rattle is still there. After replacing the engine mount can still detect some shudder, mechanic says it is the clutch shuddering a little at engagement. I also notice clacking when car is idling with clutch out, does not happen when clutch is in. Previously I thought this was nothing to worry about, but with the clutch shudder and this sound it may point to dual mass flywheel issue. I changed transmission oil, still does it, only when the car is hot.
The clutch/IMS was replaced in March, my mechanic wants to open up tranny to see if something was not torqued appropriately, if there is a flywheel problem, etc. In the meantime mechanic recommends NO autocrossing until this is sorted out. I am dropping it off on Thursday will let you know outcome.
Do you still experience the rattle when idling in neutral?
__________________
'01 986S: LN IMS, PedroBar, PSS9 coil-overs, underdrive pulley, 997 short shift, GT3 console delete, Crios muffler mod
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09-16-2013, 12:33 PM
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#2
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Registered User
Join Date: Feb 2013
Location: Land of naught
Posts: 1,302
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Quote:
Originally Posted by heymanwatchthis
PorscheBound,
I also notice clacking when car is idling with clutch out, does not happen when clutch is in. Previously I thought this was nothing to worry about, but with the clutch shudder and this sound it may point to dual mass flywheel issue. I changed transmission oil, still does it, only when the car is hot.
The clutch/IMS was replaced in March, my mechanic wants to open up tranny to see if something was not torqued appropriately, if there is a flywheel problem, etc. In the meantime mechanic recommends NO autocrossing until this is sorted out. I am dropping it off on Thursday will let you know outcome.
Do you still experience the rattle when idling in neutral?
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That clacking noise could be the release arm bouncing around if it's detached from the release bearing. There are ridiculously small clips that are supposed to hold the two pieces together.
__________________
Death is certain, life is not.
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09-16-2013, 05:17 PM
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#3
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Registered User
Join Date: Jul 2013
Location: Asheville, NC
Posts: 102
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Woodsman,
I have the TopSpeed exhaust waiting in garage for install, I may go ahead and get cat bypass depending on how my clutch/flywheel looks later this week.
__________________
'01 986S: LN IMS, PedroBar, PSS9 coil-overs, underdrive pulley, 997 short shift, GT3 console delete, Crios muffler mod
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09-16-2013, 07:01 PM
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#4
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Registered User
Join Date: Jul 2013
Location: Asheville, NC
Posts: 102
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Woodsman: I hope you are right about the release arm IF it is not an expensive fix!
__________________
'01 986S: LN IMS, PedroBar, PSS9 coil-overs, underdrive pulley, 997 short shift, GT3 console delete, Crios muffler mod
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09-17-2013, 05:01 PM
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#5
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Registered User
Join Date: Feb 2013
Location: Land of naught
Posts: 1,302
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Ya good luck with that- I would hope the mechanic warranties the work he did for you.
__________________
Death is certain, life is not.
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09-17-2013, 06:55 PM
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#6
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Registered User
Join Date: Apr 2009
Location: Perth, Australia
Posts: 165
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Clutch in the Alternator or AC pulley?
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