🔍 Key Concepts

• Atomizer construction and fuel passages inside the nozzle and cap nut • Effect of gravity on any remaining fuel or cleaning solvent inside a "cleaned" atomizer • Purpose of a spare atomizer rack on main and auxiliary diesel engines

💭 Think About

• If a small amount of fuel or solvent is still inside the atomizer after cleaning, how could its orientation cause contamination or clogging of the spray holes? • Which position best prevents dirt or metal particles from settling into the fine spray holes and internal passages? • On a running engine, how is the atomizer normally oriented, and does the storage position try to protect or drain it in some similar way?

✅ Before You Answer

• Consider which position best keeps nozzle holes protected from falling debris or dust in the engine room. • Think about which direction allows any residual liquid to drain away from the nozzle tip and spray holes. • Eliminate any option that would encourage sediment to collect right at the nozzle or in the fine internal passages.