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← TechnologyWhich risk increases when fuel injector nozzle orifice erodes in diesel engine?
A)Piston crown overheating from fuel accumulation✓
B)Crankshaft bearing failure from oil dilution
C)Turbocharger overspeed from exhaust backpressure
D)Catalytic converter damage from incomplete combustion
💡 Explanation
When the fuel injector nozzle erodes, the spray pattern degrades and fuel droplets become larger because passage widens causing poor atomization, leading to uneven combustion and fuel puddling on the piston. Therefore, piston overheating results, rather than bearing failure, turbocharger overspeed, or catalyst damage, which arise from unrelated conditions.
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