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A New Injector Was Contaminated After Installation A marine diesel workshop in Cape Verde serviced a vessel after fuel-system problems affected several cylinders. Selected diesel injectors were replaced and the fuel circuit was cleaned before the engine returned to operation. During a follow-up ...
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Morning Starts Created the Problem A standby generator maintained at a commercial facility in Haiti started normally after it had been running recently. The complaint appeared after the unit remained shut down overnight. The next morning, the engine required extended cranking before fuel delivery ...
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The New Unit Injector Did Not Move the Fault A city bus maintained by a diesel workshop in Fiji developed persistent rough running at idle and low cylinder contribution on one cylinder. Because the engine used a mechanically actuated unit-injector system, the injector was initially treated as the ...
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“PASS” Was Not Enough to Compare Two Deliveries A fleet-parts buyer in Eswatini purchased diesel injectors in batches for commercial vehicles operating across regional transport routes. The supplier provided a test sheet with each shipment, but the document contained little more than the injector ...
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The Problem Needed Heat and Time to Develop A diesel generator serving port operations in Timor-Leste started correctly and ran smoothly during short maintenance checks. After extended electrical load, however, technicians observed increasingly abnormal injector return behaviour and higher fuel...
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The Machine Changed Location Before It Changed Behaviour Construction equipment that had previously operated satisfactorily at a lower-elevation site was transferred to a mountainous project in Eritrea. After the move, operators reported black smoke and reduced power during heavy work. The machine ...
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The Most Important Clue Was What Did Not Change A delivery truck operating in Benin developed rough idle and a weak contribution reading from one cylinder. The original injector was suspected and replaced with a verified replacement unit. The engine restarted, but the same cylinder remained weak. ...
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Multiple Cylinder Corrections Suggested a Full Injector Problem A long-distance coach in Nicaragua developed hesitation during acceleration. Diagnostic data showed changing correction values across several cylinders, and rail pressure repeatedly moved above and below the commanded target. Because ...
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The Replacement Pipe Fitted, but the Engine Sound Changed A mechanical diesel generator supporting a remote engineering site in Mauritania developed a damaged high-pressure injection pipe. A replacement line was fabricated locally because the original part was not immediately available. The new pipe ...
Cases
