Boxster smoking! Tech has no idea! - Page 2 - 986 Forum - The Community for Porsche Boxster & Cayman Owners

jcb986 · 07-19-2010, 12:39 PM

Thumbs up the AOS installed...it needs to right on or your problem will not go away. The J-tube on top is usually replaced at the same time. Also the lower tube can fail and crack or suck air around the orings. I would check the AOS to be sure it is in correct. There is a place it goes into the block and the notorious boot...usually this is where you might get a problem.

BYprodriver · 07-19-2010, 06:24 PM

Has your car ever run Hot? (240+) When my 2000 S AOS failed I replaced it & it still smoked slightly, cleaned thin film of Mobil 1 from Throttle Body & intake tube & cured smoking. Later removed Intake Manifold & saw simular amount of oil inside but no smoking. Removed sec. Cats & no sign of oil there. I would think if you had oil in cats it would light the check engine light with codes. Has your car ever run Hot?

anti-bling · 07-22-2010, 04:42 PM

Hey all, thank you VERY much for all the suggestions and help. I really appreciate it! I had my car towed back yesterday...got a call this morning. He thinks the BRAND NEW oil separator was bad...im going to check it tonight and see if she smokes. Ill update you all. I really hope its fixed.

Jake Raby · 07-23-2010, 04:28 AM

Just because the part is new means nothing. I get bad AOS units right out of the box too.

I am working on a kit to omit the POS AOS!

Mark_T · 07-23-2010, 07:14 AM

Cool! Sign me up for beta testing!

Stroked & Blown · 07-23-2010, 08:50 AM

There are a lot of universal AOS kits out there, like this one from Moroso:
http://www.summitracing.com/parts/MOR-85471/

Would that work with the right fittings & a bracket?

Jake Raby · 07-23-2010, 09:59 AM

Quote:

Originally Posted by Stroked & Blown

There are a lot of universal AOS kits out there, like this one from Moroso:
http://www.summitracing.com/parts/MOR-85471/

Would that work with the right fittings & a bracket?

They operate off of a different concept. I have proven the AOS doesn't help or hurt power even when completely deleted from the system.

BTW- after changing an AOS it is normal for the cats and mufflers as well as the intake to still have residual oil from the occurrence.. It can take up to a week for the smoke to totally stop.

stephen wilson · 07-23-2010, 01:16 PM

Jesus man, would you stop following the Jake around the forum like a lost puppy!

Jake Raby · 07-23-2010, 01:31 PM

Quote:

Originally Posted by sppmo

Jake, as owner of an automotive repair business, you are not advocating breaking the law are you?

Nope, not at all.. This would only be for track vehicles not to be used on any public streets or even fitted with a license plate.

Thus far this has only been tested in a lab setting (dyno cell) and hasn't ever hit the street.

anti-bling · 07-23-2010, 04:18 PM

Well i drove it home today without the slightest bit of SMOKE!!! Woohoo! A good ending to a bad beginning

Time for a beer.

tonycarreon · 07-23-2010, 05:44 PM

congrats! here's to many more smoke-free miles.

anti-bling · 07-24-2010, 07:34 PM

Well, those miles were cut short. I spent all day fabbing up a mount for my stebro muffler. I got it on!!! WOOOT! 10 miles later...smoke. Again. Just as bad.

Im trying to stay as positive as possible...so heres some more info on when it happens. Hopefully i can get the "why" from you 986 geniuses.

I have given more thought as to when it starts...

It runs perfect for miles, not a hint of smoke...the last 3 times its happened either going up a very steep hill (i live on one) or accelerating ( to freeway speeds) up a local on-ramp thats has a small climb to it....

Its got to be an internal engine issue....ugh.

anti-bling · 07-25-2010, 11:55 AM

DOESNT LOOK OR SMELL LIKE OIL!!!!!! eh?

Is it just me or is that coolant? Uh oh...cracked head? Please give me some opinions...i think im making headway. If it is indeed not oil i have NO faith in my tech.

BYprodriver · 07-25-2010, 01:13 PM

Quote:

Originally Posted by BYprodriver

Has your car ever run Hot? (240+) When my 2000 S AOS failed I replaced it & it still smoked slightly, cleaned thin film of Mobil 1 from Throttle Body & intake tube & cured smoking. Later removed Intake Manifold & saw simular amount of oil inside but no smoking. Removed sec. Cats & no sign of oil there. I would think if you had oil in cats it would light the check engine light with codes. Has your car ever run Hot?

SO... does it only smoke when the temp gets to a certain level ?

extanker · 07-25-2010, 01:49 PM

so your mechanic cant tell what it is ?

anti-bling · 07-25-2010, 01:58 PM

No...he cant.

It will run fine at normal temp, then i'll get on the freeway or go up a hill and it will just go crazy with white smoke...its very random and never happens at the same speed, place, rpm, or temp...it is coolant, right?

extanker · 07-25-2010, 02:29 PM

they [oil water] dont smell the same....oil will hang around for more than a few seconds...water [steam] is gone after a few seconds

anti-bling · 07-25-2010, 06:32 PM

After a lot of scratching my head and staring at my baby...Im pretty sure its a cracked or warped head.

Aftermarket headers were put on it recently (will never go there again). The power steering line rubbed up against the drivers side header and eventually burned a hole-- caused a fire underneath :ah: . I was able to get most out with an extinguisher, but then hit it with water as it kept coming back...the VERY hot then cold could crack or warp a head, right?

help?

Topless · 07-25-2010, 06:45 PM

Your pics look like coolant in the combustion chamber for sure. A spark plug inspection will confirm this.

JoeFromPA · 07-25-2010, 08:31 PM

Might want to do a compression test. I can't believe the "mechanic" hasn't done that already, as that smoke looks nothing like thick burning oil (to me, could be a camera issue too).

Draining your oil/coolant is another way to check and see if there is crossover, but on this car both things will wind up running you over $100-150 in parts & labor. A simple compression test should tell you whether or not coolant is entering the combustion chamber through a bad head gasket or cracked head (won't tell u which), and it's cheap and easy to do.