Jeep 68144706AA Cylinder Head

The first step is to relieve the fuel system pressure and disconnect the cable from the negative terminal of the battery.

Inspect the cylinder head for warpage and check the head gasket, intake, and exhaust manifold surfaces.

Loosen the head bolts in increments and remove them by hand.

Install the timing chain guides, timing chains, and timing chain sprockets.

Disconnect the exhaust pipe from the turbocharger, remove the viscous fan and drive assembly, and raise the engine with support or a hoist. Remove the right engine mount through-bolt and the engine mount itself. Disconnect the turbo oil drain fitting and seal the openings. Disconnect the air intake temperature sensor wiring, remove the air filter housing and snorkel, and tape the open turbo port. Disconnect heater hoses, oil supply line, and coolant lines from the turbocharger, sealing the openings. Remove the EGR cooler, exhaust manifold with the turbo attached, fan and shroud assembly, and the drive belt. Lower the alternator, disconnect the upper radiator hose, and label and disconnect all wiring attached to the cylinder head. Remove the engine oil dipstick tube bolt, air intake housing, pump-to-fuel rail line, fuel rail-to-head lines, and fuel line shield. Remove the fuel injectors and rocker housing.

All additional components attached to the cylinder head, such as coolant fittings, ground straps, cables, hoses, wires, or brackets, should be labeled and removed.