CASE STUDY: Nuclear Emergency Diesel Generator - Poor Component Assembly Summary Following a periodic engine analysis activity, it was immediately noted by the analyst that Cylinder #2 had a peak firing pressure approximately 134 PSI lower than the engine average, the peak firing pressure was early ~3 degrees and exhaust temperatures were approximately 180 degrees F lower then engine average. The fuel pump and injector were replaced, the subsequent engine analysis data confirmed the problem had been corrected. After a root cause analysis and complete disassembly and inspection of the fuel pump revealed that two internal components were not installed during the last pump rebuild. Background Emergency Diesel Generators at nuclear power plants worldwide provide a critical safety f

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