1.3 VALVE AND INJECTOR OPERATING MECHANISM 1.3.2.1 Cleaning of Rocker Arm Assemblies Clean the rocker arm assemblies as follows: 1. Remove the cup plug at one end of the rocker arm shafts to facilitate the removal of any foreign material lodged behind the plug. NOTICE: Do not soak the rocker arms in solvent because this will remove the lubricant from the cam follower roller bushings. 2. Clean the exterior of the rocker arms only. EYE INJURY To avoid injury from flying debris when using compressed air, wear adequate eye protection (face shield or safety goggles) and do not exceed 276 kPa (40 psi) air pressure. 3. Blow dry with compressed air. 4. Soak the rocker shaft in clean fuel oil. 5.
Run a wire brush through the oil passage to remove any foreign material or sludge. 6. Clean the exterior of the shaft and blow out the passages and oil holes; and dry with compressed air. (Rev. 2005) All information subject to change without notice. 1-72 6SE483 0507 Copyright © 2005 DETROIT DIESEL CORPORATION