When evidence of lacquering is found on a set of crankshaft main bearings, which of the following operating and maintenance practices should be examined first?
A) quality of engine lubricating oil
B) quality of fuel
C) frequency of oil change intervals
D) frequency of bearing rollovers

Question

Quizplus · Accepted Answer

Lacquering on crankshaft main bearings is often related to the quality of the engine lubricating oil, as poor quality oil can lead to deposits forming on the bearings.

When Evidence of Lacquering Is Found on a Set of Crankshaft