The spray holes in diesel engine fuel valves...

Question 1 / 205eccefa2bacbc34ba4d47840

Question 1 of 205eccefa2bacbc34ba4d47840

The spray holes in diesel engine fuel valves should be cleaned using carbon solvent and __________.

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Question 1 of 20

5eccefa2bacbc34ba4d47840

The spray holes in diesel engine fuel valves should be cleaned using carbon solvent and __________.

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🔍 Key Concepts

• Fuel injector nozzle construction and what the spray holes are made of • Risk of damaging or enlarging spray holes during cleaning • Manufacturer recommendations for non-metallic vs metallic tools on precision orifices

💭 Think About

• Which option would avoid scratching, scoring, or enlarging the very small, precisely machined spray holes? • If a tool is harder than the metal of the nozzle, what kind of damage could that cause over time? • In routine maintenance, what type of material is usually preferred for cleaning delicate precision openings?

✅ Before You Answer

• Verify which choice uses a softer material than the injector nozzle metal • Eliminate any option that could change the size/shape of the spray holes • Consider which method is commonly recommended in engine manufacturer maintenance manuals for injector tips

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Question 1 of 20

The spray holes in diesel engine fuel valves should be cleaned using carbon solvent and __________.

diesel fuel

a special cleaning wire

a copper wire brush

a shaved wooden dowel

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