Engine body, general overhaul 25. Remove the rocker arm shaft screws evenly to avoid uneven load. 26. Lift the rocker arm shaft using lifting tool 9990046.
27. Mark and remove the floating valve yokes. 28. Clean around the unit injectors and unscrew the screws for the injector retainers. Remove the unit injectors, one at a time.
29. Pull up the injector using puller 9990006 and slide hammer 9990013.
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