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IMS bearing failure for your 996, Y or N? tell us (yr, 996 Mk1 or MK2 failure mode)

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Old 05-23-2016, 06:57 PM
  #616  
ohlins8990
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'99 C2 w/ 6 speed

Replaced at 119k while in for a worn clutch disk. IMS wasn't original to the car (had a billet flange), but did have a slight leak. Otherwise, the bearing was intact and spun well.
Old 05-23-2016, 07:01 PM
  #617  
Woodman71
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Originally Posted by ohlins8990
'99 C2 w/ 6 speed

Replaced at 119k while in for a worn clutch disk. IMS wasn't original to the car (had a billet flange), but did have a slight leak. Otherwise, the bearing was intact and spun well.
Original engine? I selfishly want to know because I have practically convinced myself I am going to discover a milkshake in my coolant tank...damn forums.
Old 05-23-2016, 07:24 PM
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ohlins8990
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As far as I know. Serial matches an engine from '98.
Old 05-23-2016, 07:25 PM
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Woodman71
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Originally Posted by ohlins8990
As far as I know. Serial matches an engine from '98.
Old 05-23-2016, 08:34 PM
  #620  
MoeMonney
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1999 C2 6 Speed 165K miles. Original IMS bearing and the motor was never opened and is the original engine. Came out looking in excelent condition.

Had to rebuild the engine thanks to a Cyl 1 Crack. IMS was perfect. Added and EPS unit as well as an EPS upgraded clutch.
Old 05-23-2016, 08:48 PM
  #621  
Woodman71
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Originally Posted by MoeMonney
Had to rebuild the engine thanks to a Cyl 1 Crack. IMS was perfect. Added and EPS unit as well as an EPS upgraded clutch.
Old 05-31-2016, 09:03 AM
  #622  
Minivan Dad
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Default No IBS or IMS :)

60,000 miles - IMSB who? ... runs like a top ... 1999

Old 06-05-2016, 04:02 PM
  #623  
onlygibson
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Default 99 C2 cab w/ 6spd

55k and no issues. No signs of IMS concerns. Not planning on replacing it till a new clutch is needed.
Old 06-07-2016, 06:29 PM
  #624  
DDzPorsche
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I just purchased a 2003 C2 with 19700 mi.

Had the IMS Solution installed, RMS and clutch replaced. The original bearing was OK. Clutch really didn't need replacement but since it was apart I only had to pay for the clutch kit so I had it done as well.
Old 06-08-2016, 05:35 PM
  #625  
nape
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996 C4 coupé MkII 6 speed - 2003
88k original bearing, no issues (and no panic...)
Old 06-11-2016, 07:50 PM
  #626  
TonyTwoBags
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Originally Posted by Minivan Dad
60,000 miles - IMSB who? ... runs like a top ... 1999

Beautiful car, I'm not a cab fan normally but there are some really nice condition + color combos around here.
Old 06-16-2016, 11:19 PM
  #627  
newcollector
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Originally Posted by gnat
Could they give anymore details? That is pretty vague and doesn't seem to fit with IMS(B) related warranty work.

The only related work I could possibly think of would be to change the seal from the original single ridge to the triple ridge, but on a 2004 it should never have had the older style seal on the IMSB.

It's always possible, but I've just never heard of them replacing the bearing like that under warranty. Either it wasn't touched or the the motor was replace as far as I know.
I'm also trying to decipher some Porsche Plano warranty servicing language to see if my IMS bearing was changed at 30k in 2004 on my '99 C2 Cabrio. Exact text is 'r+r trans & replace leaking rear main seal with intermediate shaft seal housing'
Clutch was also changed in same service visit.
Any ideas?
Apparently Porsche Plano was sold to Boardwalk a while back and they don't have further file data.
Old 06-16-2016, 11:27 PM
  #628  
gnat
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Originally Posted by newcollector
I'm also trying to decipher some Porsche Plano warranty servicing language to see if my IMS bearing was changed at 30k in 2004 on my '99 C2 Cabrio. Exact text is 'r+r trans & replace leaking rear main seal with intermediate shaft seal housing'
Clutch was also changed in same service visit.
Any ideas?
A 99 definitely would have had the old single ridge seal so I would interpret that as them taking care of upgrading that seal while they were in there for the leaking RMS. Chances of the bearing being replaced at that time are pretty low I'd say.
Old 06-16-2016, 11:33 PM
  #629  
newcollector
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Originally Posted by gnat
A 99 definitely would have had the old single ridge seal so I would interpret that as them taking care of upgrading that seal while they were in there for the leaking RMS. Chances of the bearing being replaced at that time are pretty low I'd say.
Thanks gnat. In your opinion does that IMS seal upgrade add any further life potential / robustness to the dual row bearing?
Old 06-16-2016, 11:37 PM
  #630  
Ahsai
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They replaced the imsb flange, which Porsche calls "intermediate shaft housing".

Originally Posted by newcollector
Thanks gnat. In your opinion does that IMS seal upgrade add any further life potential / robustness to the dual row bearing?


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