Removal (Van)
- Remove intake manifold as previously described. Remove injection line clips from brackets. Remove injection lines from injector nozzles. Remove injection lines at pump and mark for reassembly reference. Remove fuel supply line from injection pump.
- Seal injection lines, nozzles and fuel injection pump openings. Remove transducer on cruise control models. Remove upper fan shroud and A/C belt (if equipped).
- Disconnect glow plug wires. Raise vehicle. Disconnect exhaust pipes from manifolds. For left head removal, remove left exhaust manifold and power steering lower adjusting bolts.
- Disconnect glow plug temperature switch. Remove rear A/C brace (if equipped) from exhaust manifold. Remove upper power steering brackets, transmission detent cable, glow plug controller, bracket and glow plug relay.
- Remove wiring loom bracket and vacuum line clip bolt from cylinder head. Disconnect fuel return line bracket. Lower vehicle. Discharge A/C system. Disconnect A/C lines at compressor and remove compressor from brackets.
- Remove dipstick tube front bracket from stud. Remove oil fill tube upper bracket. Disconnect fuel return line bracket. Remove valve cover bolts and valve cover.
- Remove rocker arm assemblies and push rods. Mark rocker arm assemblies and push rod location for reassembly reference. Note location of hardened end. Hardened end should be indicated by painted area and fit in rocker arm.
- Mark push rod hardened area if not previously marked. Drain cooling system. Remove air cleaner resonator and bracket. Disconnect temperature inhibit switch connector at crossover. Disconnect heater, radiator and by-pass hoses at crossover.
- Remove alternator upper bracket, coolant crossover and cylinder head bolts. Disconnect transmission dipstick from rear of right head and remove tube. Remove head bolts and cylinder head.