Group 020 Cylinder Head and Valves CTM100 (06APR04) 02-020-1 P OWER T ECH 10.5 L & 12.5 L Diesel Engines 040604 PN=73 Remove and Install Rocker Arm Cover Remove Rocker Arm Cover 1. Remove air intake cross-over tube (shown removed). NOTE: Turbocharger is removed for photographic –UN–05DEC97 purposes only. It is not necessary to remove turbocharger for rocker arm cover removal. 2. Remove center hold-down cap screw with isolator. RG8173 3. Remove two outside cap screws with isolators (A), and Isolators thread cap screws into rocker arm cover as shown. NOTE: Rocker arm cover gasket is reusable if no visible damage is detected. Do not store cover resting on gasket surface. 4.
Lift rocker arm cover off engine. –UN–11DEC97 Install Rocker Arm Cover IMPORTANT: Always check routing of unit injector RG8818 wiring (B) before installing rocker arm cover. Wiring should be positioned so Unit Injector Wiring that rocker arms never contact wire. A—Isolators 1. Inspect rocker arm cover gasket to ensure that gasket B—Unit Injector Wiring is properly seated in groove and that contact face is clean. 2. Position rocker arm cover onto two locating dowels in cylinder head. 3. Install center hold-down cap screw with isolator. Tighten to specifications. Specification Rocker Arm Cover Hold-Down Cap Screws1—Torque.....................................................
30 N•m (22 lb-ft) 4. Install two outside hold-down cap screws with isolators. Tighten to specifications. 1Tighten center cap screw first, then tighten sides. Continued on next page RG,RG34710,60 –19–03NOV99–1/2 02 020 1