Tarek307

tons of MIS-INFORMATION being thrown around here

Edgy01

Your engine number can be found by getting down on the left side of the car and looking across toward the engine just aft of the rear suspension pieces--anti-roll bar). It's on the case next to the flat bottom plate which contains the hole through which you drain your oil. Mine, for example,. was a Checkpoint 8 car on 28 May 2006. And yes, Authenticity Certificates are infamously wrong when it comes to content and the most notable area of inaccuracy is the engine code. (I had to have them correct my A/C three times to finally get it right).

Sharkys

You guys made me go out and check my engine number. I have #379 that came off the production line in 2004. Car was delivered to the dealer on September 2004 and is a Launch Edition 997.1 C2S. The engine number starts with M97. I don't know what IMS bearing is in the car, nor do I care. I have a greater chance of dying while falling down than have something go wrong with the IMS. Insurance is big business. And Vegas wasn't built on winners.

GregGH

Hi

anyone have a thread or url on what Porsche did i 2009 to replace the intermediate shaft - just curious ...tried to google it ... I guess it ( Cam shafts ) have to chain or belt driven on 997.2 ??

Greg

buddy911t

Please enlighten us to the correct information if you posses it.

Lvt19672

I'm officially confused, so the m96 definitely have the old design bearing where as the m97 doesn't in 2005??? Can someone clarify, I think there is still a lot of confusion on this subject.

buddy911t

I was told the bearing change came midway to late in the build run for the 2005 base c2. The m96 vs. m97 issue I have no clue about. I wish a seasoned mechanic or someone very familiar with the subject would clear it up once and for all. I'm sick of being unsure of the facts. All I can tell you is my dealer mechanic told me my car, a base non s carrera (late build) had the upgraded 06' bearing and I trust him.

BED997

Deleted

Lvt19672

This is my engine code M96/0569507792 base c2 3.6 can someone decipher the code?
It's an 05.

mgordon18

I found this post over on 6speedonline. Skip down to post #8.

If someone can post up an example of an M96 engine on a 2005+ Carrera S or 4S, I'd love to see it. Similarly, I'd love to see an M97 engine on a non-S car.

alexb76

Seriously? This is like discussed in 1,000 threads! Come on buddy.

I'd ask LN Engineering to be sure, you most likely got the old IMS (it was upgraded at some point in 2005) which is actually good because you can upgrade it.

holden997

based on your engine number you have the larger IMS bearing.

For all, on my above post I have included the correlation between Engine numbers and IMS bearings.

CORSASCHNELL

Hard to believe there is so much confusion about such an important topic with a potentially catastrophic problem.

AP997S

With all due respect to LN Engineering (I do have their billet filter adapter and magnetic drain plug) they are in business to sell product so I suspect they'll fuel the IMS failure hype to their advantage.

Fahrer

For the 2009 MY Porsche eliminated the IMS as there were newer, stronger chain designs that allowed them to use a longer chain to drive both sets of camshafts from the driveshaft directly.