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Re: 9000 T16 Air Mass Meter Posted by Ari [Email] ![]() ![]() In Reply to: 9000 T16 Air Mass Meter, Greg Lewis, Sun, 11 May 2003 02:02:12 Members do not see ads below this line. - Help Keep This Site Online - Signup |
It's normal to have a little bit of oil in the intake. Oil vapors are drawn off through the valve cover and sucked into the intake manifold to be burned. Some of that oil makes it back down the other way. And some does make it past the turbo seals.
You probably don't clean the intake system out every week, so the oil buildup you see there probably accumulated over months and years. Worn turbo seals push A LOT of oil - enough to see blue smoke. A little oil scum on the intake is fine.
Wipe out the inside of the hoses with a lint-free cloth, and do it again a week later (to catch what you missed). If a week after that the inside is a drippy mess, then you're getting oil from the turbo seals or the crankcase ventilation. I'll bet the inside of the hose looks fine.
Reasonable amounts of oil won't hurt the AMM. The AMM goes through a 'burn-off' cycle after the engine shuts down, where the sense wire heats up white hot, burning off any contaminants. AMMs' usually die when the circuit boards corrode over time.
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