Help - Oil leak on top of engine - newbie

[chitowndad]

Thanks, I'll trace the hose and see what else I can find. I'll call Porsche to see how much an AOS costs, etc. I'm pretty handy (restored a 1991 300ZX before buying the Boxster) so I'll try doing it myself first.

I bought the car this past May with only 7,600 miles and it's a 2001 S that's Black and in cherry condition! I paid $28,000, which I thought was a very good price for a flawless car from a neighbor that I play cards with. He was the first owner and only drove it on the weekends between business trips. I'm finding myself doing the same thing, using it to go for the weekend drives only...

I almost bought a 1999 911 with 34K miles for $32,000 but that one got away from me... I wasn't fast enough.

[chitowndad]

I figured this one out. There is a tube that runs along side and under the Air Oil Separator hose and it's shaped like a stretched "S". It also looks like an accordion on one of the ends. There's a clamp that appears to be not that tight. The clamp looks goofy and I'm not sure how to tighten it. It looks like I need a special tool (like a crimp tool) to remove or tighten it.

See the attached picture. The screw driver points to the clamp...

I'm still thinking of replacing the Air Oil Separator as well. I found it on an auto discount part store online for $100. Is this part difficult to replace?

How do you disconnect the hoses on the Air Oil Separator?

Thanks,
-Steve

[CJ_Boxster]

Well that clamp doesnt get any tighter than it can squeeze on its own, its a normal clamp that you remove with simple pliers. you probably cannot see the other end of the clamp that you'd grab with the pliers cause the AOS lines are blocking your sight. You can get the AOS cheaper from suncoastporsche.com

I sent you a PM about how to remove the AOS lines.

If the Oil Filler tube is the cause of the leak, the best way to seal that leak is to remove that portion and line the interior of the tube with silicone to create a seal between it and the hose it connects to, then place the clamp back on... Dont start the engine till it drys so that it can cure and you dont suck a hole though the seal because of the crankcase vacum.

[Rodger]

See how to replace/reseal the oil filler pipe here:

Oil Seperator and Oil Filler Pipe Replacement

FWIW, I'm nearly certain you don't have an AOS problem. It's totally normal for a Boxster to puff a little smoke on initial startup. Since your's does it very infrequently, it's normal and nothing to worry about. If you had a bad AOS, your car would puke a large volume of smoke, and continue doing it for > 10 seconds at startup.

As for the oil filler pipe, you may find that it has been sealed with a piece of worthless fabric tape at the joint where you identified the clamp. Simply seperating the two segments at that clamp and applying some grey RTV may be all you need to correct the leak. The pipes probably haven't cracked.