red67

my friend has a '71 air cooled.
in the oil filler there is a white creamy liquid depositing on the filler cap and tube and dipstick.
it had a considerable amount of oily smoke on driving bellowing from the right side of the engine.
after a half an hour drive home the car was starting to missfire slightly also.
the temperature remained ok and oil level was fine.

does this mean oil contamination?

GothingNC

I would change the oil.

The goo is usually from too much moisture building up in the oil.

Is the motor runnning rich?

John

J. Brinkley

that's a bad title man. The grey/white stuff under the cap is normal.

edit, i should have said normal for car not driven enough

spence88mph

I've been told this is pretty normal as J.Brinkley described, you just gotta look out for those deposits on the seats.

KC911

While not unusual, I've never experienced it since I ALWAYS bring my car up to temperature (then redline ). Frequent, short trips are typically the culprit...

Keith
'88 CE coupe

Mike Murphy

Yeah, that sounds like moisture in the oil, and it's pretty much inevitable. Sometimes it's white, sometimes it's brown (mixes with the oil). The problem is that water is in every aspect of the combustion cycle. Water is in the air that the car inhales, and then after the air/fuel mixture burns, the engine exhales water through the exhaust system. So it's everywhere, and its going to end up in the oil no matter what you do.

That's one good reason to change the oil and change it often. Getting the engine up to operating temperature and longer drives sure helps, but you just won't be able to get rid of all moisture.

Bretech

Since his question has been answered, I will agree with the fact that the TOPIC TITLE is an awful choice of words. Made my girl look twice, and wander about what i was reading. HA!

red67

sorry about the title guys - yeah i didnt realise until you said. haha.
we'll do an oil change and go from there. my friend's 911 hadn't run for a while and it sounds like it had been kept in a really damp environment also.
many thanks for the advice.

ron mcatee

Change the oil and run it long and hard. An hour drive twice a week should help it.

DARISC

I took an oath to myself that when I light off my 911 I will not shut her down till I drove her till her temp. gauge indicates she's fully warmed up for about 5 min. or so. Hopefully this allows any condensate in the oil to boil off. Water in the oil ain't good.

I look at this as very pleasurable preventive maintainance.

Anyone with more knowledge than I have think that this is excessive?

Loaded

Usually caused by a yeast infection on uncircums.............ahhh wait a second wtf are we talking about here?

Mike Murphy

Not excessive, but sometime inconvenient, maybe. Like suppose you just need to go to the grocery stone and that's it.

If you live in warmer climates, you're going to be better off. Unfortunately for me, the Canadians, and the Alaskans, we will have to change our oil a little more often if we daily drive our air-cooled 911s in the cold weather. For this reason, I run non-synthetic and change it often.

red67

heres a shot of the yeast infection
he had a repair done at a garage on the rear torsion bar and the garage left it outside in deepest scandinavian winter for weeks even though they promised not to (nice service!)
so water in the oil is highly suspect.

Loaded

Prolly where the oily steam was trying to escape. Like most good rennlisters its time to take a sample and have it tested at a lab.




Just kidding