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146. A main engine speed control governor for one of your uninspected fishing industry vessel's main propulsion engines hunts, surges, or is sluggish to respond to load changes. Which of the following governor oil conditions would be the greatest single source of governor troubles?
Dirty oil with solid contaminants is the primary cause of governor malfunction because it obstructs small passages and causes moving parts to stick, directly resulting in hunting, surging, and sluggish response.
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