If injector valve-to-nozzle body clearance in a multi-orifii injector is greater than specification, which of the following values would increase?
A) NOP
B) peak pressure
C) back leakage
D) residual line pressure

Question

Quizplus · Accepted Answer

If the injector valve-to-nozzle body clearance is greater than specified, it would lead to increased back leakage. This is because the excessive clearance allows more fuel to escape back into the return line instead of being injected into the combustion chamber, thus reducing the efficiency of fuel injection and increasing back leakage.

If Injector Valve-To-Nozzle Body Clearance in a Multi-Orifii Injector Is