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← TechnologyWhich risk increases significantly when progressive torsional cracking occurs near the crankshaft journal fillet radius in a high-performance diesel engine?
A)Connecting rod bearing seizure✓
B)Reduced fuel injector atomization
C)Premature turbocharger failure
D)Increased exhaust manifold backpressure
💡 Explanation
Connecting rod bearing seizure increases because torsional cracking reduces the crankshaft's ability to maintain oil film thickness due to decreased rigidity around the journal. Therefore, lubrication fails, rather than other engine component malfunctions related to fuel or exhaust.
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