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I'm taking apart my engine to access the coolant valve on the back left cylinder bank. Once I got the intercool/intake manifold out I noticed the intake valves are really dirty.
My car is 2012 E63 with about 86000 miles on it. Is there anything I can do while I have the intake off to clean the valves? Has anyone come the across this before. Thanks Intake valves Old broken part on left and updated part on right without the part that is known to break.
Please post your results as I think a lot of us here wonder about valve cleaning. We are generally past the point of chemical solutions and media blasting is likely the only way. There’s lots on Amazon or professional cleaning. Let us know your path, purchases and challenges.
what’s your diy banana skills and how long did it take to get your intake off. This project is on my radar along with boroscope on the cylinders.
I probably won't do anything with the valves as I need my car for work. As far as getting off the intake, it is a pain in the ***. I do have prior experience, Ive replaced the turbo coolant lines, other coolant lines on the front of the motor and Ive done the spark plugs. I was also an aircraft mechanic for 20 years.
I think the hardest part of this job was getting the fuel lines off and disconnecting the two vacuum lines on the back side of the intake manifold. To get the fuel lines off I had to loosen one of the pressure regulators which was under a foam insulation which ripped but not to worried about it.
But there is so much extra stuff that has to come off just get access to certain parts. Like the radiator fan needs to come out, all four intake/charge pipes need to come off. Disconnecting the right engine harness and loosening the left side. I broke a few clips here and there but nothing that is detrimental to the car.
As far as time goes, it took me about 6 hours to get access to the part. That's with stopping for lunch and just given my back a break. So it probably would take someone with the right tools and know how 4 hours? I hope to have it all back together today but probably won't happen since it's the super bowl.
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