What was found
((5CSR)) DURING A CYLINDER CHANGE JOB PROMOTED BY LOW CYLINDER COMPRESSION AND HIGH IRON CONTENT IN OIL, IT WAS NOTED AN ABNORMAL AND UNSAFE AMOUNT OF WEAR ON THE CAM SHAFT LOBES. IT WAS DIRECTLY CAUSED BY LIFTERS THAT HAD EXCESSIVE AMOUNTS OF SPALLING. IT IS UNCLEAR AS TO WHAT MAY HAVE CAUSED THE INITIAL BREAK DOWN OF THE SURFACE METALS, BUT ONCE BEGAN THE BREAKDOWN ESCALATED. IT IS PROBABLE THA POOR METAL QUALITY OR IMPROPER HEAT TREATING OF THE COMPONENTS COULD BE THE CAUSE AND COULD BE REMEDIED BY BETTER QUALITY CONTROL DURING MFG PROCESSES.