This problem has been around at least since 1970 in a variety of makes and models by all manufacturers. You can obsess about it and try to get all sorts of social media support or just fix it. There are a variety of carbon cleaners that can be squirted/injected into the air intake that will fall on the back of the intake valves and soften the carbon. It will eventually fall off and be ingested into the engine and burned. You can even spray light amounts of water into the air intake, and it may soften and loosen it, but that treatment is primarily for carbon build-up on the tops of pistons vs. backside of valves. Several manufacturers even released walnut shell blasting techniques (BMW) to take the intake manifold off and blast the carbon off the back side of the valves. Welcome to the world of environmentally responsible clean engines.
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Today's Featured Article - Major Problems - by Anthony West. Following the aquisition of the two Fordsons to my collection I found that I was struggling to move them about. I had considered the possibility of driving the "F" to and from shows but anything other than local rallies was totaly impractical due to its sedate pace. I had also considered buying a landrover and trailer, but the price of a
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