IMS bearing failure for your 996, Y or N? tell us (yr, 996 Mk1 or MK2 failure mode) - Page 2 - Rennlist Discussion Forums



View Poll Results: Has YOUR car suffered an IMS failure
Yes, the IMS failed 89 10.34%
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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 02-04-2013, 10:54 AM   #16
scotindallas
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Default 2000 c4 with 120000 miles

2000 carrera 4 with 120,000 miles.

Original IMS bearing no issues.
Re-did the RMS, AOS, and new clutch at 80,000 miles.


Total loss took the car at 120,000 miles due to some idiot hitting it in traffic.

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Old 02-04-2013, 11:25 AM   #17
Marc Gelefsky
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2002 - 61K miles,
No failure
Replaced IMSB with LN unit at around 59K miles, IMS seal was leaking when replaced.
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Old 02-04-2013, 02:13 PM   #18
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2002 C4 76,000 mi
Original IMSB
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Old 02-04-2013, 03:07 PM   #19
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Original engine was replaced at 105,000 kms due to scored cylinder #6. Had done the LN IMSB upgrade (during clutch job) at about 95,000 kms and the original bearing was in perfect shape.
BTW: my engine could have been rebuilt, but I got a smoking deal on a new X51 from Porsche which I couldn't pass up!
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Old 02-04-2013, 03:09 PM   #20
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2002 C2 replaced original IMS at 65000 miles. Some play in the old bearing but no failure.

Robert
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Old 02-04-2013, 03:24 PM   #21
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2002 C2

Original IMSB replaced at around 115k miles with the LNE replacement. Mechanic states that the original bearing was still in good shape.

Car is a daily driver and has taken part in numerous DE and autocross events. Uses Mobil 1 0W-40 oil.
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Old 02-04-2013, 04:28 PM   #22
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2004 996 C2 no issues at 75k miles but replaced IMSB with LNE while having the clutch replaced. Original bearing appeared to be fine with no visible signs of wear to bearings or race.

2004 996 C4S no issues - 37K miles on original bearing.
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Old 02-04-2013, 07:28 PM   #23
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my 2000, 45k np.
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Old 02-04-2013, 08:03 PM   #24
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Replaced for peace of mind in 2008,OEM bearing was fine.car currently has 74,000 miles and runs perfect
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Last edited by randy308@optonline.net; 02-04-2013 at 08:12 PM. Reason: Change photo
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Old 02-04-2013, 08:41 PM   #25
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I've had 5 996s, none of which had IMS failure. Highest mileage is 180k so far. I only voted once.
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Old 02-04-2013, 09:58 PM   #26
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2001 no IMS issue, cylinder 2 cracked at 68k miles

Replacement engine from 2001 salvage accident car had 72k miles, unknown history but its the original engine based on engine vin, I have put on an additional 5k miles on engine.
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Old 02-04-2013, 10:04 PM   #27
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03 with 82kms...all original internals....hibernates 3-4 months a year.
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Old 02-04-2013, 10:15 PM   #28
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IMS failure at 11910K at the beginning of 2010. PO paid for labor and porsche supplied new crate motor even though car was out of warranty as he had all maintenance performed at a dealer.
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Old 02-04-2013, 10:32 PM   #29
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We should do a d-chunk failure survey. I bet there are more of those than IMS
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Old 02-04-2013, 10:48 PM   #30
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Default 2002 carrera 31k miles no IMS and RMS issues

replaced IMSB with LN upgrade at 31k miles. original RMS in good condition but replaced at same time.
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