Removal (Except "G" Series)
- Remove intake manifold. See INTAKE MANIFOLD. Remove injection line clips from brackets. Disconnect injection lines from injector nozzles.
- Disconnect injection lines from injection pump. Remove injection lines. Remove valve covers. Drain coolant. Raise and support vehicle. Disconnect exhaust pipe from manifold. Lower vehicle.
- Remove A/C compressor, ground strap from rear of cylinder head, power steering pump and alternator as necessary. Disconnect necessary wiring. Remove glow plug relay and dipstick tube.
- Disconnect glow plug wires. Remove rocker arm bolts and rocker arm shafts. Mark component location for reassembly reference. Note hardened upper end of push rod, indicated by paint stripe. Mark push rods if no paint stripe is visible. Remove push rods.
- Disconnect necessary coolant hoses and ground straps. Remove coolant crossover pipe. Remove cylinder head bolts (rear bolt in left cylinder head may need to remain in head during removal). Remove cylinder head.