jasper

IMS is LNE. RMS is Porsche (it's a $50 part)

The subject is discussed ad nauseum on the 996 board.

dbiller1

2006 997 C4S No Failure

flyingpenguin

2007 997.1 GT3. Mezger engine. Not even the slightest probability of an IMS failure...

agdamis

2005 997C2S - 45,500 miles IMS FAILURE!

Motor Shot! Just ordered "New Remanufactured motor" from Porsche

I called Porsche Dealer and attempted to do "Goodwill" new engine and I was declined.

Porsche should be absolutely ashamed of themselves, I am completely disgusted by the fact that they did not stand by their car on a problem that is obviously documented as a design flaw.

Planning on writing a letter to PORSCHE USA.

If anyone has any suggestions I am all ears.

jasper

Suggestions? One would be to not buy the replacement from Porsche (too late) but to spend the money instead on having an engine built to a higher standard by LNE, or Flat6.

Two questions on the failure...

1) Are you 100% absolutely sure it was the IMS bearing that caused the failure - even if the dealership said that was the case, this doesn't mean that is what happened. It could have been a broken chain or a cracked head...any number of things can cause these motors (or any motor) to fail. If it wasn't an IMS bearing failure, the engine may be salvageable....but Porsche won't tell you that. They would rather just sell you a new motor.

2) Was yours an M97 or an M96?...the crucial difference being the design of the intermediate shaft bearing. Early 997 cars still had the M96 engines installed. It wasn't until late 2005 that Porsche started installing the M97.

In either case, you need to inspect the engine once it is out of the car. Unless Porsche is paying you for the old one, then you own it and you should exercise that option. I'm sure there's a market for that motor no matter what shape it's in.

I'm interested in this because the M97 used a different IMS bearing design....one that I understand is *not* prone to failure...and that is what is installed in my 996. If you have a new style IMS bearing and it did indeed fail, then that would be an interesting case, and as I understand it a rather rare one at that..

So - pics? detailed inspection report? Don't trust the dealership to tell you the truth. Not because they don't want you to know, but because they don't know themselves.

pauljosef

2006 Carrera S 71k No problems

911ct

One of my coworkers has a 2000 Boxter with 65k on board. 3 weeks ago she changed the oil and the shop said that the oil filter had metal shawings!! So I told her to take the car to a very respectable Pcar shop in central CT("hairy dog grrrage") and they replace the IMS bearing for her. A very close call but she was very lucky to catch it on time. She brought the old bearing to work and I took a couple of pictures that i'll try to upload.

holden997

I have been following the IMS failure via a number of forums and I have NOT seem actual evidences or pictures that the larger IMS bearing was the cockpit of blown engine. A blown engine occurs for many reasons and it might/might not be the IMS...
Here is my request:
If your blown engine is a M97 with the larger bearing (3605) please post the dealer's reports and PICTURES of the actual bearing showing the failed components.

Until now, I'll say zero failure for the M97 engine with the larger bearing (3605).

cab&coupe

Have a friend with a 2000 Boxter too that had the same issue and installed the INS bearing... dodged a big bullet.

avolkoff

I wonder, there are the bit of the bearing, still inside the engine?

BED997

Holden-I'm pretty sure flat6 has posted a picture of a larger bearing failure on rennlist. You might be able to search around for the photo.

997 :-)

2005 (NOV 2004) first generation 997 20K no issues.....hope for none since this is my first Porsche

agdamis

I would change it to the LN, you are right in the wheel house of engines with the old barring. Cost me $21K to find out, do yourself a favor.

grey ghost

just read this on autoblog about the 2013 M5 M6 v8tt. recall.

According to the National Highway Traffic Safety Administration, "a manufacturing process error" could cause the oil pump's driveshaft to separate from its rotor, leading "to a sudden loss of oil pressure causing the possibility of complete engine failure, resulting in an engine stall-like condition, increasing the risk of a vehicle crash."

I wonder if if they will get around to Porsche.

Rob

winnenascar3

2005 997 73,000 No Issues