201. You suspect that a diesel generator set on your general-purpose offshore supply vessel has a defective unit injector because the engine, although warm, is running roughly. The two-stroke engine is fitted with mechanically operated unit injectors. When you push and hold down the #3 cylinder injector follower, there is no real change, as the engine continues to run roughly as before. What does this indicate?

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Accepted Answer

the #3 cylinder unit injector is faulty. you have successfully isolated the faulty unit injector.

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