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Old 08-02-2014, 04:51 AM   #3
seningen
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Join Date: Jul 2008
Location: austin
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Quote:
Originally Posted by jeroen View Post
I know... been discussed at least a 1000 times already, and I've been reading up on it (yes, I used the search function), but still hoping to get some confirmation.

When starting my '97 2.5, I get the occasional puff of white smoke from the exhaust.
I know on an aircooled it's nothing to worry about.
Not so sure on the watercooled M96.

Mostly does it after short distance drives but recently it starts to get more frequent.

I removed the oil cap, but I don't notice any of the described symptoms there.
It came of like you'd normally expect and there doesn't seem to be much of a vacuum.

I admit replacing the AOS doesn't seem like a whole lotta work, but I'd rather not fix it if it ain't broke...

So, the main question remains:
Is it ok if I get the occasional puff of smoke when starting, or is it not supposed to do that at all...?
This comes up fairly often....

It could mean virtually nothing -- or it could be a little more serious.

AOS is a possibility, but so is ovality issues.

Just like air-cooled engines -- oil can pool on the back side of the pistons
when car sits, then can seep through the rings after sitting.
It might be on shorter runs, the engine doesn't get hot enough and there
maybe clearance.

Unless you were going through a ton of oil or huge long smoke screens -- I wouldn't worry too much about it.

Mike
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