SERIES 60 SERVICE MANUAL 3. Remove the rocker arm shaft assembly, refer to section 1.3.2. 4. Remove the injector from the appropriate cylinder. Refer to section 2.3.2. NOTE: Fuel must be removed from the cylinder head fuel galleries prior to removing the injectors. Refer to section 2.3.2. 5. Bar the engine over until the cylinder is at top-dead-center (TDC). 6. Insert the threaded portion of the valve spring compressor (J–35580) into the threaded inboard camshaft cap hole adjacent to the valve being worked on. See Figure 1-71. Figure 1-71 Installing Valve Spring Compressor 7.
Position the spring compressor cage portion of the valve spring compressor directly over the valve spring to be compressed. Engage the dowel of the cage in the closest slot of the valve spring compressor handle. NOTICE: Do not contact the valve with the compressor tool. 8. Compress the valve spring and remove the valve locks using a small magnet to prevent the locks from falling into the cylinder head oil return galleries. 9. Release the spring and remove the valve rotator and valve spring. If the valve stem oil seal is to be replaced, remove the seal and discard it. 10. On the other three valves it may be necessary to repeat these steps for cylinders being worked on.
Refer to step 1and the following steps. Last, refer to step 9. NOTE: All valve spring or seal removal and replacement must be completed for each cylinder being serviced while the piston is at top-dead-center, before turning the crankshaft to work on another cylinder. All information subject to change without notice. (Rev. 2005) 6SE483 0507 Copyright © 2005 DETROIT DIESEL CORPORATION 1-85