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