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I just purchased a '95 850 Turbo. Somewhat of a "mechanics special". But it's in good shape otherwise so I took the chance.
Well anyway here's the story. The turbo failed for the previous owner, which he had replaced with a new Volvo unit. The car did continue to smoke after this but only after making turns. His mechanic said the oil separator is clogged and pooled up oil is getting sucked into the intake when making a turn.
Now here's where I come in. It only smokes sometimes, and yes, usually after a turn. The interesting thing is that it wont do it during the turn, but do it like 5 seconds afterwards and then poof, a friggin huge cloud comes out. Poking around under the hood I noticed an awful lot of oil around the dipstick area and practically everything underneath it. Smoke comes out of the hole when it's running. So basically, yeah it's excessive crankcase pressure. At first I considered the piston rings. I pulled all the plugs and checked them. They all looked just fine. I free-revved the piss out of it in the driveway, no smoke. I nailed it from a stop all the way to redline and then let it coast back down. No smoke. So I'm figuring I need to fix the oil separator and whatever else is associated with it. I did have a check engine light and it showed a code 2-3-2, so that may or not be related.
What's a good place to order the oil separator?
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