utkinpol

those with pre-2006 motor do not need to drop motor down and split the block to get access to IMS bearing, it is what whole deal is about.
2006 and post-2006 cars with new bearing cannot replace it without splitting the block so it is cost prohibitive to actually replace the bearing, so, one can drop off gearbox and after taking ims cover you can remove outer dust seal from the bearing to improve lubrication or put DOF system for even more lubrication.

Ynot

Build date: 05/06, changed oil once a year, not worried about the IMS issues.

Para82

I have one of the first 997's built, it's a launch edition. I haven't had any engine issues so far, i'm at around 47,000 miles and owned since 10k.

I am interested in other people's experience with the LN Engineering upgrade...

eroy2

I'm in the exact same boat. Launch edition, 53000 miles. worrying about IMS but because I plan to track it occasionally.

Fahrer

None of those poll options apply to my situation. I have a 2008S and I am quite aware of the IMS situation.

utkinpol

what do you mean, does not apply? you have pos-2006 and did nothing so far, it means?

Para82

Anyone know about this? http://www.theimssolution.com/

So there is the LN Engineering "Retrofit" and now we have from Flat-6 Innovation the IMS "Solution"

Fahrer

I did not look carefully enough. I chose the second choice.....

Sporty

My 2005 C2 (M96 engine) was built in March 2005 and has the larger "non servicable" bearing. Note that March '05 is generally the start of the revised bearing for 2005 and post cars, but not necessarily absolute. Examining oil filter and mag drain plug -all good so far but very slight weepage around IMS flange which some say is normal (car was sitting a while) (17k total miles). Now I drive it more frequently and runs excellent. Really no option -tear it down to do IMS permanent solution for $10k+ for a relatively rare occurence (so far) with regard to these bearings? Will continue to drive and enjoy and monitor-if worse happens we have a lot of amunition as a result of the class action suit for the '01 to early '05 builds which had the smaller bearing. If you have the smaller bearing why not just spend the $2k and replace with the LN permanent solution and be done with it?

Sporty

Although I voted the second option, I think (?) you mean it to be:

"I own a late build(03/05 or later) 2005 or post car with larger non-servicable bearing and did nothing."
or something like that

Ben Z

Early '05 w/serviceable bearing. Had the LN installed @ about 31K along with a clutch (original bearing was perfect, which is good news because it means there wasn't a bunch of swarf in the crankcase to then ruin the LN bearing). I now have close to 48K. B2B warranty on the car to 75K so not planning to do anything more until then.

There is a lot of disagreement between various entrepreneurs on how to address the IMS issue. The shop I had the LN installed by is the outfit making the Direct Oil Feed system now. LN/Flat6 says DOF is of no benefit, and might cause foaming etc. OTOH the shop making the DOF runs a fleet of racing Boxters and they have a great rep as engine rebuilders. And just the other day I spoke with another well-known outfit who is coming out with a roller bearing retrofit which they say is much better than a ball bearing. And, they say LN's "The Solution" is worrisome because if anything obstructs the oil feed, the journal bearing will seize very quickly. So everyone selling their own fix has a reason why theirs is better and the others aren't. It's really starting to become a confusing free-for-all.

My intuitive feeling is that all or almost all of the few failures of the LN bearing are the result of knackered installation or swarf in the crank from a failing OEM bearing. So I'm betting on my LN to last the life of the engine. I don't think I will replace it at 50K miles inasmuch as many of the OEM bearings have lasted twice that long at least.

911searcher

What if you have a 2006 ?


How much does it cost to fix an IMS with 2006/2007 Porsche 911 Carrera 4 AWD during a clutch change ?

Fahrer

It costs BIG $$$ as you would need to crack open the engine.

911searcher

Maybe I should buy a 2005 !

McCrazy

I also voted the second option.

Being in the military we say something is serviceable as long as it works and accomplishes its function. I can see where the confusion lies though as the bearing is not easily serviced by a mechanic. Perhaps some disambiguation may help.