We observed a white smoke from the auxiliary engine crankcase (crankshaft seal). The engine was stopped immediately. What may be the cause of the smoke?

23 Sep '19, 11:24

Sept. 23, 2019, 11:24 a.m.
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Open crankcase covers. Check the crakcase/sump for any signs of cooling water leakge.

The white smoke mentioned may be vapours or droplets a oil-water mixture, especially, if water leakage is significant and level of contaminated oil in the crankcase have reached the crankshaft webs / connecting rods. In this case, rotating crankshaft splashes the oil-water mixture, creating white fog and excessive pressur in the crankcase, whiche releases itself through crankshaft seal.

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23 Sep '19, 11:36

Sept. 23, 2019, 11:36 a.m.
cheng's gravatar image

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