Doing clutch, not touching IMS
Instructor
Joined: May 2018
Posts: 203
Likes: 20
For cars covered under the lawsuit I guess this is exactly what they did, install entirely new shafts / replacement engines. For some reason they just never supplied the bearing itself.
Rennlist Member
Joined: Feb 2015
Posts: 707
Likes: 20
Porsche has started selling bearings as part of the Porsche classic program , my understanding is you can get it done at one of these classic centers but they won't just sell the parts there was a whole thread on this a while back
Raby said something about Porsche adopting the L&n method and tools they developed
Raby said something about Porsche adopting the L&n method and tools they developed
Pro
Joined: Aug 2017
Posts: 526
Likes: 127
From everything I’ve read, the new shaft makes perfect sense and is consistent with whyI would never replace the original bearing in a higher mileage car with anything other than a oil fed plain bearing. If it’s not broke, don’t fix it!! Yes, it’s not broke. It’s not on its way to being broke.
We’ve heard stories of cars having the bearing replaced only to have the new bearing fail...but wait..the car wasn’t properly certified for a replacement! I think that certification came after the fact on the early replacements. So now it seems, you only replace the bearing on cars where the probability is exceptionally low to fail in the first place. Makes no sense to me.
If the shaft is properly specced, I don’t think you need to replace the bearing. If your shaft isn’t in spec, then either a new roller bearing isn’t going to help or your car has probably already died if you have miles on it.
i.e. the shaft is real problem. The original bearing would have been fine with a properly aligned shaft. Small deviations in the shaft put too much stress on original bearing design.
That’s my take away on a nauseating amount of internet yammering. To each his own.
By the way, IIRC, when Porsche settled the suit, they only agreed to a ten year window for compensation. It was already ten years when they settled so Porsche pretty much knew their liability already. Another cockeyed result where the company gets away with very little to pay, owners get the shaft( no shaft actually but a good pun) and the lawyers take their fees.
Edit: I do agree if you are going to sell the car at some point it is easier to replace the bearing than listening to a bunch of tire kickers whine and waste your time.
We’ve heard stories of cars having the bearing replaced only to have the new bearing fail...but wait..the car wasn’t properly certified for a replacement! I think that certification came after the fact on the early replacements. So now it seems, you only replace the bearing on cars where the probability is exceptionally low to fail in the first place. Makes no sense to me.
If the shaft is properly specced, I don’t think you need to replace the bearing. If your shaft isn’t in spec, then either a new roller bearing isn’t going to help or your car has probably already died if you have miles on it.
i.e. the shaft is real problem. The original bearing would have been fine with a properly aligned shaft. Small deviations in the shaft put too much stress on original bearing design.
That’s my take away on a nauseating amount of internet yammering. To each his own.
By the way, IIRC, when Porsche settled the suit, they only agreed to a ten year window for compensation. It was already ten years when they settled so Porsche pretty much knew their liability already. Another cockeyed result where the company gets away with very little to pay, owners get the shaft( no shaft actually but a good pun) and the lawyers take their fees.
Edit: I do agree if you are going to sell the car at some point it is easier to replace the bearing than listening to a bunch of tire kickers whine and waste your time.
Last edited by Semitone; Nov 20, 2018 at 06:26 PM.
Three Wheelin'
Joined: Apr 2016
Posts: 1,612
Likes: 354
From: SF Bay Area
The second one I purchased full knowing what I was in for. I swapped out the bearing with an LN version, new OEM clutch, AOS, RMS, Flywheel, Fluids etc. before even taking possession of the car and I can tell you with 100% certainty it has been a far more enjoyable ownership experience having piece of mind that I've taken every precaution to keep the car in the best shape possible.
But how can you sleep at night knowing about the dreaded...chain pad tensioners!?!
Drifting
Joined: Jun 2001
Posts: 2,417
Likes: 156
From: VT USA
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Drifting
Joined: Dec 2014
Posts: 2,872
Likes: 557
Drifting
Joined: Jun 2005
Posts: 2,391
Likes: 964
From: NJ/NY area
. I've owned 2 996's, the first a 2001 back when they were new, so I did not even know what IMS was (good times, good times). My second 2000 996 had it's dual-row IMS replaced at 62k miles, I plan to replace it again at the 112k (50k intervals). Nothing I've read changes that plan, but it's always good to be informed, so I find these threads very beneficial.
Racer
Joined: Mar 2012
Posts: 445
Likes: 89
From: Sacramento, CA
I had mine pulled by an excellent SoCal indy shop at 60K miles after reading all the tales of horror and grief concerning my 2000 C2. The existing single row bearing - inspected closely once pulled - appeared to be in absolutely perfect condition. For what it's worth.
Three Wheelin'
Joined: Aug 2018
Posts: 1,968
Likes: 228
Bingo! That’s my understanding. Certified installers would reject a bearing retrofit when the old bearing is beyond Stage 1. Unfortunately, from what Ive heard and read, many shops don’t care and install a new bearing in a contaminated engine even when they can see the old bearing is shedding metal. No skin off their backs. Blame it on LN, blame it on EPS, blame it on Pelican parts, blame it on Porsche, but it’s not our fault!!