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RMS, once, then again and again!

David JAMES

PCGB Member
Member
Just had the car back from a service at the local OPC and I am told that the rear seal is seeping oil again. This is now the third time in 6 years; first time done under warranty; the second under extended warranty; the third time ... well that'll have to wait. This does not seem too clever with a car that's just done 35k. Is my experience unique? This got me wondering whether any long suffering soul could top 3 in 6?

DJ
 
Get back in the queue sunshine, you're not even in the top ten lol[8D]
I think Scouser had more than that, maybe double?
 
I've had 6. All under warranty. The current one seems to be holding [:)]

It's no biggie, and if it wasn't under warranty I'd probably wait until the clutch needed doing.
 
But the real question is, why does this keep happening? What is wrong with the RMS in the first place? Should Porsche find a new supplier or re-design the RMS? I don't recall seeing other cars with such a problem, so a real solution must exist.

Why should an owner have to rely on a warranty for an 'item' which appears to go wrong so often?

Just questions - you can answer if you can.
 
they have redesigned it! i am on my second in 11k. apparently they have to fit it using some kind of special tool so it sits right and that tool hasn't been around too long.....allegedly. i keep forgetting to check whether it has worked for me....must remember to look this weekend.

agreed though, it is a bit on the cr4p side but if you do a quick search on here there are some threads with some useful links/tips, mainly change the oil once a year / 5k miles (iirc) and to use the car as often as possible, no short runs and warm it up properly before you set off. a lot of these aren't really that easy (esp the warm up, takes 10mins or so) if you use it as a daily car so not ideal.

again proper servicing and maintenance (and using it....he said!) are the key. if you read the links some are quite scary so take them with a pinch of salt. i spoke in detail to the head mechanic of the local opc and he claimed that the newer seal correctly fitted has seen few if any return for a new one...the cynical amongst you would say of course but he seems like an honest chap...!
 
The KN derived seal that was put in from 2006 onwards seems to be almost perfect - the special tools for checking the bore concentricity and inserion depth have been around since 2004.

Gen 2 cars will just have other characteristics [&:]
 
Dear all, Porsche have redesigned the M96 RMS 3 times. It's a major embarasment for the 996 cars, which suffer worse. If your Box 986 is only dripping a little, and you don't have to top up the oil level more than once every six months, ignor it untill your clutch needs replacing. If it's loosing oil all over your drive in large amounts, you've got a much bigger problem than an RMS issue. If you own a 987 Boxster with a M97 engine and it's loosing oil then you should panick, Porsche built the M97 because they couldn't fix the M96 RMS problem. There is another issue; if your gearbox doesn't line up with your engine exactly your engine will leek oil, changing your RMS will only fix this problem in the short term. Porsche cleverly fixed this problem by building the 987/997 M97 engine!
 
All 997's are fitted with the latest version of the seal. As many owners including me can testify, they still leak. Agents Scully and Mulder will tell you that "the truth is out there". That truth is probably more to do with the fundamental design of the crankcase/cage assembly.
 
M97 engines leak too? I was lead to believe this was only an early M96 problem, that the new generation of 987/997's have had this problem fixed. To find this isn't true shatters my dreams of trouble free Cayman ownership. I here the aircooled 911 people suffer from oil leakage, water cooled too hey? Oh well. Could be worse. I could be driving to work in an Astra!
 
The RMS is just a simple little oil seepage - no need to worry, I agree its a design fault and in reality Porsche should pay as its a design fault, guess no one has legally challenged them yet so they will keep on avoiding responsibility.

Dont take the word though of the garage (indy or OPC) often the RMS has leaked and it gets changed, however, very few Indies or OPCs actually clean the oil swarf of the bottom of the gearbox bellhousing so on a future date they see the swarf and report (to be on the safe side) that the RMS is seeping.

First hand experience of this, RMS changed 12000 miles ago, took car to Autobahn Coventry for major service - they reported a seepage of the RMS, had a look when i got home and cleaned off the swarf and since then done another 4000 miles - not a hint of oil in the area. In fairness they didnt do the RMS - that was Porsche Reading, and it was only right to report what they discovered.
(Reading does not, in my opinion, provide a good service)

Of course the seepage could develop but apart from the annoance of the odd oil spot on the driveway its not likely to cause any problems, and by the time it does the clutch will have failed, the airbag spring unit, the MAF, the brake disks, the headlight switch, the remote locking key, the 2nd gear syncromesh and the IMS will be waiting for everything to be repaired then let go.

The joys of Porsche ownership
 
for the uninitiated (we're picking up a 2005 987 in 2 weeks) - does anyone have a picture from the underside of where to look for this problem ?

I had a good look at the underside of the one we're buying but I don't know Porsche - so not familiar yet with how everything fits together.
 
ORIGINAL: Mark Bennett

It's no biggie, and if it wasn't under warranty I'd probably wait until the clutch needed doing.

You might have a long wait then - still have the one that came with the car! [:)]
 
Hi I suggest you buy a buyers guide I bought A guide by Peter Morgan "The Ultimate buyers guide" for Boxters and Caymens from 96 to 07 lt has lots of stuff in it to look out for and lots of pictures

Chris
 
ORIGINAL: rs32

for the uninitiated (we're picking up a 2005 987 in 2 weeks) - does anyone have a picture from the underside of where to look for this problem ?

I had a good look at the underside of the one we're buying but I don't know Porsche - so not familiar yet with how everything fits together.

The car would need to be raised, however the gearbox belhousing is a big bulbouse part that bolts to the engine, the lowest part of this has a steel braided tether, its at this point any oil seepage from the RMS will exit and causes the braided steel tether to caked in an oily swarf - dead easy to see
 

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