An Engine Is Making A Knocking Sound That Changes With Rpm, And The N – InterviewSolution

1.

An Engine Is Making A Knocking Sound That Changes With Rpm, And The Noise Disappears While A Cylinder Is Being Tested During The Cylinder Balance Test. Which Could Be The Cause?

Answer»

A BAD ROD bearing will make a knocking SOUND with CHANGES in RPM and disappear when the cylinder is shorted out.

A bad rod bearing will make a knocking sound with changes in RPM and disappear when the cylinder is shorted out.

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