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Hi all, recently I was replacing my throttle lever on the intake manifold and saw oil coming from engine to the intake and burning down the valves into the cylinders. Any suggestions why this is happening? Here are some pics:
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
Normal from the captive breather system. Rear of valve tulip is spotless. You are using a fuel with a decent additive system. Unfortunately it can only clean downstream of the injectors where the fuel can get.
Last edited by Glyn M Ruck; Dec 21, 2013 at 08:05 PM.
2010 Mercedes GLK 350, 2014 Jeep Cherokee Latitude 3.2 V6
Awakening a 6 year old thread!
Hey all!
I removed my intake manifold today to replace a broken swirl flap actuator arm and was also shocked by the amount of oil in the intake manifold and the amount of grunge in the intake ports. I've attached a photo of the rear passenger side intake port. Our GLK350 had nearly 200,000 miles on it. Is this just normal for an engine with this many miles?
I also replaced the PVC cover that is in the above photo, so hopefully the amount of oil coming into the manifold in the future will be greatly reduced.
Once I get everything back together, what's the best way to clean up those intake ports? Or should I squirt some carb cleaner in there now and just let it evaporate before I put the intake manifold back in place?
Also, the actual plastic swirl flap things inside of the intake manifold are drenched in oil. Can/should I spray those down with carb cleaner?
Thanks in advance!
Mike Grunge!
Last edited by SeaMonkeyGLK350; Jun 10, 2019 at 10:16 PM.
Reason: Forgot to ask about oily swirl flaps
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