996 TT minor oil/coolant leak

[richardc2cab]

Hmmm, I seem to have developed a very light oil leak at the end of the central aerodynamic undertray before the cross stay bar which I guess is rather from the transmission rather than the engine ? (its a Tip). In fact the solution is very watery maybe its coolant ??

[JFP in PA]

Hmmm, I seem to have developed a very light oil leak at the end of the central aerodynamic undertray before the cross stay bar which I guess is rather from the transmission rather than the engine ? (its a Tip). In fact the solution is very watery maybe its coolant ??

Because of the way fluids travel along various things under these cars, including the under tray, it is almost impossible to say where the leak is without putting the car up in the air and pulling the trays off for a good look.

[richardc2cab]

Looks like it is Pentosin

[jpflip]

Pentosin, Take a look at your clutch reservoir in front under the hood. May be it is overfilled . If it is your slave is at fault. If the leak comes from the middle of the car it can also be the slave or the accumulator that is becoming loose on the slave…Saw both cases ….

Edited January 11, 2014 by jpflip

[richardc2cab]

Does a Tip have a front Clutch reservoir ? strange thing is that my Pentosin is low enough to justify its this and it feels like it but doesn't smell like it, its neutral whilst pentosin has a particular pungent smell

[JFP in PA]

Does a Tip have a front Clutch reservoir ? strange thing is that my Pentosin is low enough to justify its this and it feels like it but doesn't smell like it, its neutral whilst pentosin has a particular pungent smell

There is no clutch reservoir on a Tip equipped car.

[Loren]

If it is Pentosin in the front of a Tip car then it is more likely a leaking steering rack.

[jpflip]

OMG sorry I miss the "TIP" word sorry….

[richardc2cab]

lets see when I get it up on a lift, strangely, whilst from the viscosity it seems like Pentosin, it doesn't smell like it

[Loren]

Pentosin has a greenish-blue color. Mostly green.

[richardc2cab]

Oh dear its gearbox oil from the gasket between the Tip gearbox and engine, strange that it just starts dripping through for no particular reason. Garage says he can source the part from somewhere at ZF for $20 but its lots of labor

[jpflip]

It happen to someone on 6speed. Here's the link: http://www.6speedonline.com/forums/996-turbo-gt2/129016-tiptronic-fluid-leak.html

[richardc2cab]

Hmmm now I hear that ZF want to do an exchange gearbox, this sounds totally unnecessary. whats the story with the new transmission carrier mount PN 99737503303 should I put one of these in if the gearbox is coming out ?

[jpflip]

Richard, I know Pat is working on his Tip Transmission. And I think he found somewhere the parts catalog...May be you should send him a PM. Very knowledgeable guy! You will found him on this thread: http://www.6speedonline.com/forums/996-turbo-gt2/326723-engine-reference-pictures.html

[richardc2cab]

I have found 2 people who have the gaskets manufactured for $100 and its not an engine out job but about 6 hour labor

Edited January 13, 2014 by richardc2cab

[richardc2cab]

So it is the Tip transmission gaskets, fortunately one can now buy them here
http://www.importperformancetrans.co...-set-5414.html
however my independent mechanic only wants to change the first larger one as that is a lot less complicated and where all the oil seems to be coming from, I will add the 997 transmission mount any thoughts on not doing both gaskets ?

[richardc2cab]

You guys are lost for words, or what, don't worry I'm not going to send a lawyer round afterwards

[richardc2cab]

sorry, Im not sure why the text has a line through but I need to make some decisions and appreciate any help

[richardc2cab]

So what exactly is the point of this forum ??

[JFP in PA]

So what exactly is the point of this forum ??

The point of this forum is to provide a venue for the exchange as accurate Porsche technical information as possible, while also maintaining a very high level of decorum. That said, not all problems are common ones, and in some cases many not be encountered frequently, if at all. I fix these cars for a living, and I would be the last person to claim I have seen or repaired everything possible. "Some new problem" is a fairly common occurrence in the world of Porsches, and as such, you sometimes have to be patient waiting for a response to your question. If someone has experienced your specific issue, you will find an in-depth response here; that is what the exchange of information is all about.

Unfortunately, it is not always possible to provide either a quick or correct answer when insufficient information is available, as it is in your case. We have not physically seen the car, your mechanic has; and is therefore in a superior position in terms of having a better idea what is needed when it comes to the gaskets. As for the mount, that would depend upon the condition of the one in the car; if it looks like it needs help, it would be a good time to replace it. The number you posted is supposed to be the superseded part.

[richardc2cab]

What I am trying to establish is just how much more labor/complexity is involved in replacing the smaller gasket (2) as this is the one which usually leaks. My Mechanic is refusing to do this without taking the engine out

vs replacing the larger Gasket gasket (1) which my mechanic is happy to do with the engine in situ

[richardc2cab]

& unfortunately today tests show today its leaking from both, so now it gets interesting

[richardc2cab]

But I guess its fair to conclude that by now, nobody knows anything else about the relevant technical details here ?

[Loren]

Not sure what you are looking for from us here?

I can not tell you the Porsche book time (time to repair) or complexity because it is not listed. Even Porsche sends some problems out to specialize shops - in this case a transmission shop.

It looks to me like your choices are get the re-manufactured gaskets (and hope they fix the leak) or replace the transmission or sell the car.

[richardc2cab]

I have manufactured gaskets, I am looking for technical information on fitting them without removing the engine