IMS failure
#16
Rennlist Member
#18
Nordschleife Master
Join Date: Mar 2003
Location: Destin, Nashville, In a 458 Challenge
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Wow, that is pretty hard core to call someone out as a liar because their first post. Newsflash, most 911 owners have lives and don't spend every waken moment on Facebook and forums. Those with lives and spending their free time more constructively might nonetheless take time to search out answers or help when confronted with a catastrophic engine failure. If dude is legit, that is pretty low class to call someone out as a liar seeking condolence and help . . .
#20
Former Vendor
Lots of people that own these cars are not on the Forums until some Google search leads them here. Over 1/3 of the people that call us with failures have no idea the IMS exists, and they have no idea what the failure is until they Google the term their shop told them. After that, we are typically their first phone call. This is why I did the "IMS Explained" video series with PCA.
#22
Rennlist Member
Bit of a thread jack, but for those who have changed the IMS on the 06+ cars, what have you used? They clearly are not failure prone, but holy crap are they expensive for a simple bearing.
#23
RL Community Team
Rennlist Member
Rennlist Member
The only way to change the larger bearing is by an engine teardown or by using a milling machine to enlarge the case opening, which is a terrible idea. On a larger bearing car, pull the grease seal and be done with it, then if you happen to be a 1%er that gets a large bearing failure, replace it with The IMS Solution during the rebuild.
#24
Rennlist Member
IMS Solution seems like overkill given the low failure rate on the larger bearing. I'd be happy to install a good quality roller bearing in there with grease seals removed. The car already has 70k miles on it.
#25
RL Community Team
Rennlist Member
Rennlist Member
Has you motor failed? I think you're missing my point in that you can't change the bearing in your car because it already has the larger bearing, being an 06+ car
#27
RL Community Team
Rennlist Member
Rennlist Member
Now I understand. If it were me, I'd pony up the extra money for the IMS solution and never worry about a bearing with balks or rollers ever failing again. LN Engineering was having a 20% off holiday sale if it's still going on.
#28
Rennlist Member
OP, Sorry to hear about the engine failure.
Even if you do not reed these forums, with over 100k miles on an ‘05, you would have thought the shop that services the car would have been aware of the issue and advised to replace the bearing. Just out of curiosity, were you ever advised to service the IMSB from the place that services your car? I bought my ‘05 with 24k miles on it from a great independent Porsche shop and we worked the IMSB change into the purchase.
I know this question does not change the fact that the engine has failed, but it might help others to know that shops do not proactively address the need of a known issue.
As for thinking about next steps. I really like my 997, so I would likely book a 4.0 build. At this point, even if $25k for the build, still likey a little less than buying a 997.2. You would end up with a known good motor with all the issues worked out. The 997.2 is a great car. If you want to stay with the 997 platform, moving to a 997.2 would be the quickest way to move forward. There is not a right or wrong next step, but I would think beating the Porsche bush for money or an engine would be a frustrating experience. Let us know what you do. Best wishes and good luck.
Even if you do not reed these forums, with over 100k miles on an ‘05, you would have thought the shop that services the car would have been aware of the issue and advised to replace the bearing. Just out of curiosity, were you ever advised to service the IMSB from the place that services your car? I bought my ‘05 with 24k miles on it from a great independent Porsche shop and we worked the IMSB change into the purchase.
I know this question does not change the fact that the engine has failed, but it might help others to know that shops do not proactively address the need of a known issue.
As for thinking about next steps. I really like my 997, so I would likely book a 4.0 build. At this point, even if $25k for the build, still likey a little less than buying a 997.2. You would end up with a known good motor with all the issues worked out. The 997.2 is a great car. If you want to stay with the 997 platform, moving to a 997.2 would be the quickest way to move forward. There is not a right or wrong next step, but I would think beating the Porsche bush for money or an engine would be a frustrating experience. Let us know what you do. Best wishes and good luck.
Last edited by JWYR; 12-02-2017 at 11:39 AM. Reason: typo