A Series 60 engine equipped with N2 injectors is being tuned up using the DDC service literature procedure. Technician A says that when the valves at cylinder #4 are at overlap, the EUI height may be set at cylinder #6. Technician B says that in this position, the valves at cylinder #3 may also be set. Who is correct?
A) Technician A only
B) Technician B only
C) Both A and B
D) Neither A nor B

Question

Quizplus · Accepted Answer

In a Series 60 engine, when the valves at cylinder #4 are at overlap, it is indeed the correct position to set the EUI (Electronically Unit Injector) height for cylinder #6, as per Technician A. Additionally, Technician B is correct in stating that the valves at cylinder #3 can also be set in this position, following the engine's firing order and the procedure for valve and injector adjustments. This is based on the engine's design and the specific procedure for tuning up the engine, which involves setting valves and injectors in certain positions to ensure proper timing and operation.

A Series 60 Engine Equipped with N2 Injectors Is Being