White smoke , low oil . Help

[zgdanska]

I took the car for a ride this morning and while I was doing about 65 I started to see white smoke in a rear of my car . I pulled over , stoped the engine . There was a huge white cloud of smoke coming out left muffler . I checked the oil and it was almost empty . The oil gauge was reading only 1.5 . The engine still starts so is not blown but any idea what it may be ????

ps.

after i tow the car i got back to my garage i noticed a few oil spots on the concrete.

Thanks for any input before I go to the repair shop.

Daniel

2002 911 cabrio 3.6L

Edited September 2, 2008 by zgdanska

[KevinMac]

I took the car for a ride this morning and while I was doing about 65 I started to see white smoke in a rear of my car . I pulled over , stoped the engine . There was a huge white cloud of smoke coming out left muffler . I checked the oil and it was almost empty . The oil gauge was reading only 1.5 . The engine still starts so is not blown but any idea what it may be ????

ps.

after i tow the car i got back to my garage i noticed a few oil spots on the concrete.

Thanks for any input before I go to the repair shop.

Daniel

2002 911 cabrio 3.6L

How is the coolant level. usually white smoke is coolant, not oil. Oil is blue. You may have a situation whereas the coolant is washing down the cylinder and burning off.

[zgdanska]

Ok . We add only a one quart of oil , removed the pipes and started the motor again . Looks like everything is fine now . It was burning the oil only in right head. Any idea ? . Coolant did not leak .

[zgdanska]

Hello Loren

Maybe some advise from you?

[Loren]

Have you checked for pending fault codes?

Could be a bad AOS.

[zgdanska]

there are no bad codes , now this engine runs fine . I have no idea what is it ?

[Loren]

Look in the throttle body for oil.

If there is oil in the TB then you likely have a bad AOS.

[zgdanska]

looks like is dry .

Edited September 3, 2008 by zgdanska

[Loren]

How is the coolant level?

Any oil floating in the coolant?

[zgdanska]

How is the coolant level?

Any oil floating in the coolant?

cooland level is normal , but i will check for oil in cooland .

[CosmosC4S]

I'm with Loren, most likely it's the AOS...I had mine replaced.

[zgdanska]

I'm with Loren, most likely it's the AOS...I had mine replaced.

did you had the same problem "cocmosC4S" ??? i look into your post . You had some smoke on start up only ? :renntech:

Edited September 4, 2008 by zgdanska

[zgdanska]

There is no oil in the coolant.

Edited September 4, 2008 by zgdanska

[zgdanska]

Hello Loren

why they are two oil seperators ? I one for left and the other for right cylinders ????

Edited September 5, 2008 by zgdanska

[Loren]

Hello Loren

why they are two oil seperators ? I one for left and the other for right cylinders ????

Here is how I understand the "oil separators" use.

There are actually 3 (what Porsche calls) oil separators.

Two are in the sump and are used primarily to remove the air from returned oil so that when the pump picks up sump oil to circulate through the engine it gets oil and not an oil/air mixture. These are really swirlpots that defoam the oil. These are usually pretty reliable and rarely fail. (see item 4 below)

The Air Oil Separator on the top of the engine is the common one to fail. It is used to take oil droplets (mist) and vapors (gases) from the crankcase and return the oil to the crankcase and burn the oil vapor in the engine (for emissions control). Most often the membrane in this oil separator fails and you get huge amount of oil sucked into the intake (and produce clouds of smoke). (see item 1 below)

[zgdanska]

Do you have the part number for the aos that is on the top of the engine ?

ps.Thank you , thank you , thank you for your help

[Loren]

Do you have the part number for the aos that is on the top of the engine ?

ps.Thank you , thank you , thank you for your help

996.107.026.51 oil separator -- US MSRP $97.19

[zgdanska]

Thanks Again . :renntech:

You are the man

[zgdanska]

i change all 3 oil separators. Everything perfect . Just some leftovers from my pipes .

Thanks Loren

:renntech: