No oil passages in head other than return ports. They are clear, and flowing so there is no flooding on the top end. In fact I can look down through the fill spout and see the rocker arms when running. This verifies the lack of flooding, as well as negates any chance of it being pressure in the crankcase as it creates about an 1 1/2 diameter direct vent, on top of the 3/4 vent tube.
Not to mention when I test ran it without the turbo last time, the turbo return was open, and it dumps directly into the side of the block, inches above the oil level, and I had nothing coming out of it either.
The oil line to the rocker shaft is external, and the rocker shaft rides in an aluminum housing that is bolted to the top of the head. That being the case, the only passages between the head and the block are water.
There is no smoke, just liquid oil more or less oozing from the exhaust from the turbo. I do not have the muffler on it. hen I had it running the first time I had burned the muffler out, so it was dry. It took maybe 20 minutes of hard running before I started seeing oil coming out of it. This time I figure it would be about the same were I to install the muffler.
I can't remember all of the suggestions/questions thus far, but suffice it to say I have covered every one of them thus far. Even so, I'm still looking for suggestions, no matter how uncommon, or unconventional they may be.
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Today's Featured Article - A Lifetime of Farm Machinery - by Joe Michaels. I am a mechanical engineer by profession, specializing in powerplant work. I worked as a machinist and engine erector, with time spent overseas. I have always had a love for machinery, and an appreciation for farming and farm machinery. I was born and raised in Brooklyn, New York. Not a place one would associate with farms or farm machinery. I credit my parents for instilling a lot of good values, a respect for learning, a knowledge of various skills and a little knowledge of farming in me, amo
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