Why may the engine crankcase pressure increase?

27 Mar '18, 15:11

March 27, 2018, 3:11 p.m.
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Answer:

The pressure increase in the crankcase of a diesel engine indicates blow-by of the piston rings. This could be due to worn out cylinder liner or the piston rings are leaking or piston rings are broken. In that case large amount of high-pressure gas will enter into the crankcase and produce high pressure in a crankcase. Hence the substantial increase in the crankcase pressure could be an indication of a worn out cylinder liner.

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27 Mar '18, 15:16

March 27, 2018, 3:16 p.m.
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