What was found
FACTORY NEW CYLINDER WITH MANUFACTURE DATE OF 12-1997 WAS REMOVED FROM THE NR 2 POSITION DUE TO OIL LEAKS. DURING DISASSEMBLY OF THE EXHAUST VALVE AND VALVE SPRING ASSEMBLY, A CRACK WAS NOTED BEWEEN THE 1ST AND 2ND FIN. CLOSER INSPECTION REVEALED THE FINS WERE MACHINED TOO DEEP INTO THE CYLINDER HEAD. SUGGEST A THOROUGH INSPECTION OF THE INTAKE AND EXHAUST FIN AREA BE PERFORMED BEFORE CYLINDER ASSEMBLY. PART T .25 HOUR.