05-18-2018, 04:11 AM
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#1
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Who's askin'?
Join Date: Mar 2018
Location: Utah
Posts: 2,448
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The car had 112k miles on it.... well outside the failure window. Don't sweat it!
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05-18-2018, 05:08 AM
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#2
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Registered User
Join Date: Apr 2018
Location: VA
Posts: 19
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Quote:
Originally Posted by maytag
The car had 112k miles on it.... well outside the failure window.
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I would have thought the same. Is there a mileage point where there is some level of agreement that failure is unlikely?
__________________
2004 996 40th Anniversary
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05-18-2018, 05:16 AM
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#3
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Who's askin'?
Join Date: Mar 2018
Location: Utah
Posts: 2,448
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Quote:
Originally Posted by VeryRed997
I would have thought the same. Is there a mileage point where there is some level of agreement that failure is unlikely?
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I'm not an expert; very new to these cars as well. However I read all over the internet that 60k miles is the magic number.
Point of fact: there are many anecdotal instances of people who changed their IMS as a precautionary measure, only to have the replacement fail shortly thereafter.
If you ask me, based on what passes for research at my house, I'd say you're safer with an unfailed original IMS at 112k miles, than you are with a recently - replaced IMS (depending on which replacement is installed, of course).
I'm in a similar position myself, with a few extra miles. I've decided that even when I do the clutch this winter, I'll probably leave the IMS well - enough alone.
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05-19-2018, 11:30 AM
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#4
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Registered User
Join Date: Oct 2008
Location: O.C. CA
Posts: 3,709
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Quote:
Originally Posted by VeryRed997
I would have thought the same. Is there a mileage point where there is some level of agreement that failure is unlikely?
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Nothing last forever, and they are using Mobil 1 oil.
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OE engine rebuilt,3.6 litre LN Engineering billet sleeves,triple row IMSB,LN rods. Deep sump oil pan with DT40 oil.
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05-19-2018, 12:02 PM
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#5
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Registered User
Join Date: Feb 2005
Location: It's a kind of magic.....
Posts: 6,619
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Quote:
Originally Posted by VeryRed997
I would have thought the same. Is there a mileage point where there is some level of agreement that failure is unlikely?
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Not really, there is always some element of risk, more so with some bearing designs or usage.
__________________
“Anything really new is invented only in one’s youth. Later, one becomes more experienced, more famous – and more stupid.” - Albert Einstein
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05-19-2018, 01:45 PM
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#6
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Registered User
Join Date: Jul 2017
Location: SoCal
Posts: 118
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here is a receipt of mine and this does not include labor yet. You will see the details of the LNE IMS.
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05-18-2018, 05:37 AM
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#7
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Racer Boy
Join Date: Sep 2015
Location: Seattle, WA
Posts: 946
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Quote:
Originally Posted by maytag
The car had 112k miles on it.... well outside the failure window. Don't sweat it!
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Except at some point the grease wears away in the bearing, and then what? I had my IMSB replaced at 147K, and took a good look at the bearing. The grease seals were intact, but the grease was nearly gone, leaving virtually no lubrication for the bearing.
If you are in there, you may as well replace a known failure point.
I'm really glad I replaced mine!
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05-18-2018, 06:38 AM
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#8
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Registered User
Join Date: Feb 2005
Location: It's a kind of magic.....
Posts: 6,619
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Quote:
Originally Posted by maytag
The car had 112k miles on it.... well outside the failure window. Don't sweat it!
Sent from my SM-G930T using Tapatalk
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There is no such thing as a "failure window" to be outside of, ANY IMS can and do fail, regardless of mileage or design.
__________________
“Anything really new is invented only in one’s youth. Later, one becomes more experienced, more famous – and more stupid.” - Albert Einstein
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05-18-2018, 06:56 AM
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#9
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Who's askin'?
Join Date: Mar 2018
Location: Utah
Posts: 2,448
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Quote:
Originally Posted by JFP in PA
There is no such thing as a "failure window" to be outside of, ANY IMS can and do fail, regardless of mileage or design.
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of course that's true. but there's also a preponderance of evidence to indicate that most fail in the mileage range discussed. A commensurate statistic exists to suggest that the likelihood of failure outside of that "window" is reduced dramatically.
JFP, you are absolutely the expert to my novice-ness (I made that word up, haha), and I would immediately bow to your superior knowledge in any arena regarding this car. I'm simply doing the math.
Many or most of us getting into the 986 NOW (when the car is 15 to 20 years old), have entered the 986 world because it's CHEAP FUN. Anything we do to start ruining the CHEAP part, also detracts from the FUN part.
ANY / EVERY used car is a gamble... I'd suggest that the number & likelihood of things that can and do go catastrophically-wrong with a used car, make the frequency of IMS-failure relatively insignificant.
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05-18-2018, 07:14 AM
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#10
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Registered User
Join Date: Sep 2012
Location: S. New Jersey
Posts: 1,239
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Quote:
Originally Posted by maytag
The car had 112k miles on it.... well outside the failure window. Don't sweat it!
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Happy days. I just passed 100k miles.
My 2002 single row IMSB has made it
Finally a good nights sleep
Oh dang, there are 20 something more things that can take out my ride
Let the sleepless nights continue.
Oh by the way, there is no such thing as a running, derivable Porsche that is a cheap ride
BUT that is what we sign up for when we buy one
__________________
2002 S - old school third pedal
Seal Grey
Last edited by kk2002s; 05-18-2018 at 07:17 AM.
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05-18-2018, 07:44 AM
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#11
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Registered User
Join Date: Oct 2017
Location: NE
Posts: 10
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Thank you all for the help. It's disappointing it wasn't done at the time of the new clutch but it is what it is.
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