Morphine

I have my 05 C2S (15K miles) in for its 2 year service. The dealer just called me and told me there is a problem with the RMS. He says that they will replace it under warranty with the “new style” RMS. Has anyone heard of this “new style” RMS? What else should I be asking/concerned about now? Thanks.

500

The installation of the seal is very important, make sure the tech who does it has done many and knows what he/she is doing.

SrfCity

Some dealers replace the oil as part of it and no charge. See if you can finagle that?

DJ23

Why does an 2005 C2S have a RMS problem anyway? I thought they fixed this when they left the 996. Make sure they give you a good answer and assurance that the integrity of your engine is uncompromised.

Jay

500

Even thought he seal and the installation tool was updated some years back if it's not perfectly installed it will leak and some cars leaving the factory still have this problem albeit very few.

dstrimbu

997/987s don't suffer as many RMS issues as 996/986, but - these engines still have long crank-tails... in a manual trans 911, there's a lot of weight hanging off the end of that long cranktail, too...

The first seal design was bad; the new seal is better able to handle the flexing of the cranktail without taking a set. It still happens - just not _nearly_ as often as the Type xx6 motors with the old seal design.

MMD

There's also a new installation tool. Make sure he's using the new tool (probably is by now but doesn't hurt to ask)

The new seal and the new tool should fix the problem.

Last I heard, in the 986/996 era, if you need more than three seal replacements you will get a new engine.

gota911

Porsche is also using the new 997 version of the RMS (part # 997-101-212-00) on the 996 cars. The RMS was replaced on my '04 996 in February of this year.

rountreed

I have had the new seal for about 2 years on my 996 with no additional leaks. As far as the 997s doing better I would say only time will tell since they started off with the better seal originally so if you put the same seal on a 996 and a 997 would the 997 still do better? Maybe but again we will all know in about 5 years.

MMD

997 engines are less prone to leak (I forgot why). The reason they are all prone to leakage is Porsche relies on the exactitude of split crankcase casting to be of the correct tolerances for the seal's seat. They _should_ machine them to make sure it's absolutely concentric with crank journal but it's too expensive to do that. Porsche relies on hit-and-miss as Quality Control. IOW, they can't tell if a particular engine is going to develop a leak when it leaves the assembly area. If you get a messed up RMS it's your problem and Porsche will attempt to fix it for you.

The B

The good news for those just now having RMS issues on the 997S is that dealers have been practicing on cars's like mine...

Porky

Does anyone have info / pics of the new tool? Or even better a part number for it.

Ronnie

Where is this (mis)information coming from? Porsche marketing / sales department? Are there figures supporting this? Or was the 996/986 even worse?

I read and hear so many people who think that RMS is no longer an issue / less of an issue for 997, which is not true if you look at the numbers of 997 still being treated.

99firehawk

this is where misinformation comes from.
NObody goes on the internet and posts
"MY RMS ISNT LEAKING"
I have changed 2 997/987 rms, one was a brand new car with 300 miles that the seal was misinstalled, the other was a very early 997 that somehow got an old style seal (i hear there may be a fair number of those but ive only seen one ). We have had new style seal cars with leaks, maybe 8-10 or so sicne they were released , but considering that we servcice hundreds of cars a month thats nothing. I used to to 4-6 a week some weeks on 9x6 cars, The new seal, and the new instlation tool which I assure everybody that your dealers are using, as the old seal isnt avaiable and the old tool wont work on ptfe seals. The rms is no longer an "issue" and people need to get informed instead of justing copying and pasting everything they hear and getting "chicken little" syndrome

MMD

I read the exact numbers are a huge secret which Porsche will never disclose. Some estimates are up to 25%. I look at it this way. I bought a new 03 986S. A office buddy bought a NEW 02 Carrera. Within 20k miles WE BOTH had RMS leaks in those cars! Seems like ALOT of RMS leaks out there. (yeah, yeah, yeah, there's two kinds of statistics in this situation..., etc.).