You are replacing a damaged high pressure...

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Question 1 of 2066636eef28f7522a1c5201b5

You are replacing a damaged high pressure fuel injection line for #1 cylinder on an auxiliary diesel engine onboard your fishery research vessel. Which of the following statements represents the best replacement practice or strategy?

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🔍 Key Concepts

• High-pressure diesel fuel injection systems are designed for very specific line length and shape to maintain correct timing and pressure. • Differences in line length, internal volume, and bend configuration can change injection timing between cylinders. • Think about manufacturer’s recommendations and what maintains the original engineered characteristics of the system.

💭 Think About

• How could changing the length or shape of just one cylinder’s injection line affect when that cylinder receives fuel compared to the others? • Which option best preserves the original, engineered injection timing and pressure balance across all cylinders? • If the manufacturer designed a specific line for #1 cylinder, what might be the safest and most reliable strategy when replacing a damaged line?

✅ Before You Answer

• Compare which options change line length and bend configuration versus which option keeps them identical to the original design. • Consider which choice most closely follows manufacturer’s specifications for replacement parts in a critical high-pressure fuel system. • Ask yourself which strategy best reduces the risk of uneven injection timing, leaks, or vibration-induced failure in the replacement line.

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