Diesel Data: Automotive Repair

Rocker Arm Assembly: Service and Repair


1. Disconnect battery ground cable.
2. Remove glove box assembly, if necessary, then the engine cover.
3. Remove air cleaner assembly, then disconnect spark plug wires from valve cover.
4. Remove PCV hose and EGR valve.
5. Remove engine oil filler tube, then disconnect vacuum pipe rail from intake manifold and thermostat housing.
6. Remove valve cover attaching bolts and the valve cover.
7. If only pushrods are being replaced, loosen rocker bolt and swing arm away from pushrod, then remove pushrod through hole in cylinder head. Remove rocker arm bolt and ball, then the rocker arm(s) and pushrod(s).
8. Reverse procedure to install.