Medium and Heavy Trucks
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Did you check the camshaft lobes and rocker lobes for damage while you performed the overhead adjustment? You need to get Cummins Insite program and perform a injector cutout test to see if it is an injector failing and isolate the failed one(s). That is the likely cause since a failed bearing would be constant. But you can pull an oil sample and have a lab perform oil sample test and see if there is an internal engine problem . Or drop the oil filter and cut it open and check fro metal/bearing material. Injectors only have a life span of about 500,000 miles.
There should be no damage to the rollers this means they are breaking apart and will cause other internal damage as that metal passes thru the engine.. You must replace the rollers asap. This is a known issue with these engines. Cummins has updated the rollers and made theu wider to increase the strength and relieve stress causing the failure. The jake harness is plastic and if the 2 legs broke off that hold in in the head it too needs to be replaced.
So you isolated the injectors with The Cummins Program? I see the pic and that is the start of something very bad for the engine. In the event that macrospalling is observed THAT YOU HAVE THE START OF, inspect the lubricating oil filter for metallic debris. If metallic debris is found in the filter, inspect and replace as necessary the main and rod bearings, camshaft bushings, turbocharger, lubricating oil pump and pressure regulator, and the lubricating oil cooler.An overhead set will not help a injector that is failing mechanically and accelerate the damage on the rollers The stated procedures are needed to determine the cause
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