Is IMS not if but when?
10-14-2011, 09:00 PM
#17
The IMS bearing in your 07 is different from the 05 and 06 models. It is considerably larger (but cannot be changed without tearing the engine down). This larger bearing was the fix to the issue in the earlier models.
10-15-2011, 12:54 AM
#18
Burning Brakes
:
10-15-2011, 02:21 AM
#20
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10-15-2011, 05:29 AM
#21
MY'06-'08 failures are very rare, but it can happen. I've seen like one MY '06 and one MY '07 reported on this forum. The rest have been '05s, but even those have been relatively few. While it may seem scary when someone reports an IMS failure, I'm not losing any sleep over it.
10-15-2011, 08:26 AM
#22
Three Wheelin'
If not I call BS!
10-15-2011, 04:00 PM
#23
http://www.lnengineering.com/ims.html
Can I replace my IMS bearing?
LN Engineering offers three IMS solutions, two of which can be done without disassembly of the engine while the engine is still in the car:
single row IMS retrofit kit (fits MY02-05 M96 engines including some MY00-01)
dual row IMS retrofit kit (fits MY97-99 M96 engines including some MY00-01)
The last option, our IMS Upgrade, requires engine disassembly. The intermediate shaft must be sent in to us to be upgraded to our triple-bearing upgrade. A separate ceramic hybrid bearing upgrade is available for the late-style MY06-08 M97 IMS as well.
But before proceeding with an IMS Retrofit, you first need to identify which IMS you have!
10-15-2011, 05:01 PM
#24
^I believe what folks are objecting to is the claim that the '07 is different from the '06.
Here's more text from the LN Engineering site stating that MY'06 or later has the larger bearing:
--
MY02-05 will need a single row retrofit kit, although depending on how late the build date was, there may be some MY05 vehicles with the updated M97 IMS, which is not serviceable, at least without teardown of the engine.
If your vehicle has a replacement engine, expect to find the prevailing bearing used by Porsche in those years. If the engine was made for MY06 or later, it will have the late revision, larger IMS bearing which is not serviceable.
--
For those that are worried, just buy an extended warranty. Even LN doesn't guarantee that their bearing won't fail. If you have CPO/extended warranty, Porche should cover it. But if it's got the LN bearing in it and it fails, then Porsche probably won't cover it.
Here's more text from the LN Engineering site stating that MY'06 or later has the larger bearing:
--
MY02-05 will need a single row retrofit kit, although depending on how late the build date was, there may be some MY05 vehicles with the updated M97 IMS, which is not serviceable, at least without teardown of the engine.
If your vehicle has a replacement engine, expect to find the prevailing bearing used by Porsche in those years. If the engine was made for MY06 or later, it will have the late revision, larger IMS bearing which is not serviceable.
--
For those that are worried, just buy an extended warranty. Even LN doesn't guarantee that their bearing won't fail. If you have CPO/extended warranty, Porche should cover it. But if it's got the LN bearing in it and it fails, then Porsche probably won't cover it.
10-15-2011, 05:38 PM
#25
I am not sure when the change was made but according to past Excellence article, the changeover was mad in the middle of 2006 ( no the middle of the MY). Semantics, I know, but if true it would essentially apply to 2007 and 2008 MY engines.
10-15-2011, 08:15 PM
#26
I've also heard folks reference Excellence magazine, but have never seen the article. I would appreciate anyone's help to provide a link or scan to the actual text to confirm what was printed on the specific model years and various IMS bearing differences.
Regardless, as LN Engineering is in a business to provide an upgrade to the specific part in question, I have to believe they've had first hand experience with the MY differences.
Regardless, as LN Engineering is in a business to provide an upgrade to the specific part in question, I have to believe they've had first hand experience with the MY differences.
10-16-2011, 01:07 AM
#27
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I purchased one of the first '05 C2S used last year with approx 41K miles from a private party and the car was not in warranty. It passed PPI and so I bought it. And I didn't purchase a third party warranty. So far, so good. If the engine goes, so it goes. A new one gets put in.
10-16-2011, 10:22 AM
#28
Rennlist Member
Issues 183 and 184 last year - had a 2-part tech series on M96 IMS failures and fixes.
10-17-2011, 04:23 PM
#29
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There are many other modes of engine failure which you probably need to worry about first:
* Scored cylinder is the most "popular"
* Scavege pump failure/ broken timing chain
* The last one is IMS which on 2006+ cars seems a rarity
I know because I had the broken timing chain at 58k miles on a 4 year old 997 C2 (June 2006). Not having bought enough furry dice from my Porsche dealer (other than 2 overpriced services @ 20k and 40k), I got no help and ended up paying the equivalent of $16k on a full rebuild, which 5k miles on has held up nicely.
My advice is simple, get the oil/filter changed every 5k, warm it up and then use it to its full and oh yes, get a decent warranty and leave the worry behind.
* Scored cylinder is the most "popular"
* Scavege pump failure/ broken timing chain
* The last one is IMS which on 2006+ cars seems a rarity
I know because I had the broken timing chain at 58k miles on a 4 year old 997 C2 (June 2006). Not having bought enough furry dice from my Porsche dealer (other than 2 overpriced services @ 20k and 40k), I got no help and ended up paying the equivalent of $16k on a full rebuild, which 5k miles on has held up nicely.
My advice is simple, get the oil/filter changed every 5k, warm it up and then use it to its full and oh yes, get a decent warranty and leave the worry behind.
