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post #9 of Old 05-20-2006
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Location: Malaysia
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In one way or the other the oil seems to disappear from the oil sump. There are in fact not that many options.
1: It is leaking out into the bilge.
2:It is burned during combustion: You would get a lot of blue smoke. This is next to an old 2-stroke outboard consumption.
3:Turbo seals are leaking: You will get an oil film on the water.
4:Oil cooler is leaking: Oil film on the water or oil in the coolant.
My 3QM Yanmar is till not consuming oil. At the most I have refilled about 1 Quart after 4-500 hrs of operation or changed. It has some 2000hrs running time and I have changed oil and filter after aprox 4-500 hrs. In 2000hrs of operation in total I have refilled 2 Quarts! By all means not a turbo engine, but oil consumption should not be in the range indicated unless You have been running at max power continously!
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