As shown in the illustration of the fuel...

As shown in the illustration of the fuel injection pump, the component labeled "J" would be identified as the __________. Illustration MO-0061

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🔍 Key Concepts

• Fuel injection pump layout – know what parts are typically at the very top (near the discharge to the injector) versus down by the cam follower. • Control rack and pinion – these are the horizontal parts that rotate the plunger to change fuel quantity, usually shown as a toothed bar (rack) and a small gear (pinion). • Delivery check valve area – this is located where high‑pressure fuel leaves the pump body, usually in a small housing above the plunger with a spring‑loaded valve inside.

💭 Think About

• First, look carefully at where the label J is located in the drawing: is it pointing to something inside the upper outlet housing, or to the horizontal rack and gear near the middle, or to a spring around the plunger? • Compare each answer choice with what you actually see at label J. Does J appear to be a gear, a long horizontal bar, a return spring under the plunger, or a small valve assembly in the top housing? • Ask yourself: which of these four choices would logically be found directly in line with the fuel outlet going to the injector, and which would instead be found around the plunger or on the side of the pump body?

✅ Before You Answer

• Verify the orientation and location of J – it is at the very top/right of the pump, not down by the cam or off to the side. • Check whether J includes a small valve element and seat within the top housing (typical of the high‑pressure outlet), or whether it looks like teeth on a rack or gear (typical of control rack and pinion). • Confirm that you can separately see the control rack (straight toothed bar) and pinion gear (small gear) elsewhere in the illustration; this helps you eliminate any option that names those parts for label J.

🔍 Key Concepts

💭 Think About

✅ Before You Answer