What causes crankcase explosion?

Answer Posted / karthick

crank case explosion is mainly caused by oil mist ignition.
how this oil mist gets formed?
whenever some parts of the engine for ex bearings become
hot then the lubricating oil in the bearing gets heated and
evaported and when the oil flows to colder area it will
condensate and forms an oil mist.this oil mist is an
explosive so when it comes into contact with any ignition
point it catches fire and causes explosion

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