Excessive oil consumption in a diesel engine, accompanied by thick blue smoke emitting from the exhaust, most likely indicates:
Piston rings worn out
Thick blue exhaust smoke is the classic sign of engine oil being burnt in the combustion chamber.
When the piston rings are worn, they can no longer scrape and seal oil off the cylinder walls, so oil leaks up into the chamber and burns, giving high oil consumption and blue smoke.
Hence, the symptoms indicate worn-out piston rings.
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Important Questions from Lubrication System
Maximum oil pressure in the lubrication system is controlled by the _________.
Water sludge is formed in the crankcase due to the mixing of which of the following?
Which component of an engine lubricating system indicates the level of oil?
Which oil pump is used in stationary diesel engines?
The pressure of the lubricant oil inside an engine is measured by which of the following?
