Dodge Truck RAM diesel engine cylinder head replacing.
The procedure with details and diagram.
Car repair guide?
http://technoanswers.blogspot.in/2012/03/car-repair-guide.html
The procedure with details and diagram.
- Raise vehicle on hoist.
- Drain engine coolant.
- Disconnect exhaust pipe from turbocharger elbow.
- Remove turbocharger drain tube bolts at turbocharger. Cap off ports to prevent dirt or foreign material from entering.
- Lower the vehicle.
- Disconnect air inlet temperature/pressure sensor.
- Remove air cleaner housing and snorkel from the vehicle. Cap off turbocharger air inlet to prevent intrusion of dirt or foreign material.
- Disconnect cab heater core supply and return hoses from the cylinder head and heater pipe.
- Disconnect turbocharger oil supply line at the turbocharger end. Cap off open ports to prevent intrusion of dirt or foreign material.
- Remove exhaust manifold-to-cylinder head bolts, spacers, heat shield, retention straps, and cab heater plumbing. Remove exhaust manifold and turbocharger from the vehicle as an assembly.
- Remove cooling fan/drive/shroud assembly.
- Remove accessory drive belt.
- Remove cooling fan support from cylinder block.
- Remove upper generator bolt, loosen lower generator bolt, and rotate generator away from cylinder head.
- Disconnect radiator upper hose from the thermostat housing.
- Disconnect the Intake Air Temperature/Manifold Air Pressure, and Coolant Temperature sensor connectors.
- Remove the engine harness to cylinder head attaching bolts and P-clips at front of head.
- Remove the intake air grid heater wires from the grid heater.
- Remove engine oil level indicator tube attaching bolt at fuel filter housing bracket and inlet air connection.
- Remove the charge air cooler-to-air inlet housing pipe.
- Remove the engine wire harness attaching bolt and wire harness push-in fastener from air inlet housing.
- Remove the air inlet housing and intake grid heater from the intake manifold cover.
- Remove the two grid heater harness-to-cylinder head attaching bolts at front of cylinder head.
NOTEExtreme care should be used to keep dirt/debris from entering the fuel lines. Plastic caps should be used on the ends of the fuel lines. - Remove the high pressure pump to fuel rail fuel line as follows:
- Loosen fuel line nuts at fuel pump and at fuel rail.
- Use a back-up wrench on the fitting at the fuel pump to keep it from loosening.
- Remove the fuel rail to cylinder head fuel lines as follows:
- Loosen No. 6 high pressure fuel line shield and position out of way.
- Loosen the fuel line nuts at the fuel rail and at the cylinder head. Use a back-up wrench on HPC nut.
- Remove the fuel line bracket bolts at the intake manifold cover.
- Remove the engine lift bracket from the rear of the cylinder head.
- Remove the fuel rail as follows:
- Remove fuel rail pressure sensor connector.
- Remove banjo fitting at pressure limiting valve.
- Remove fuel rail bolts and fuel rail.
- Remove the low pressure lines as follows:
- Remove the fuel drain banjo fitting on the front side of fuel filter housing.
- Remove the fuel drain banjo fitting on rear side of fuel filter housing.
- Remove the fuel drain line support bracket on rear side of filter housing.
- Disconnect fuel drain hose.
- Remove banjo fitting at bottom of fuel filter housing.
- Disconnect fuel supply hose at fuel filter.
- Disconnect fuel heater, and water in fuel sensor.
- Remove the fuel filter assembly-to-cylinder head bolts and remove filter assembly from vehicle.
- Remove wire harness P-clip from cylinder head (located behind filter housing).
NOTEFor early builds. Verify that the cylinder head cover ground spring is retained in the cylinder head cover. - Remove the cylinder head cover.
- For early builds. Disconnect the rocker housing injector harness connectors.
- Remove injector harness nuts from injectors.
- Remove the rocker levers, cross heads and push rods. Mark each component so they can be installed in their original positions.
NOTEThe No. 5 cylinder exhaust and the No. 6 cylinder intake and exhaust push rods are removed by lifting them up and through the provided cowl panel access holes. Remove the rubber plugs to expose these relief holes. - Remove the fuel return line and banjo bolt at the rear of the cylinder head. Be careful not to drop the two sealing washers.
- Remove the fuel injectors.
- Remove rocker housing bolts and rocker housing and gasket.
- Reinstall the engine lift bracket at the rear of cylinder head. Torque to 57 ft. lbs. (77 Nm).
- Remove twenty six (26) cylinder head-to-block bolts.
- Attach an engine lift crane to engine lift brackets and lift cylinder head off engine and out of vehicle.
- Remove the head gasket and inspect for failure.
To install:
- Install a new gasket with the part number side up, and locate the gasket over the dowel sleeves.
- Using an engine lifting crane, lower the cylinder head onto the engine.
- Lightly lubricate head bolts under bolt head and on threads, with engine oil and install. Using the sequence shown , tighten bolts in the following steps:
- Step 1: 52 ft. lbs. (70 Nm).
- Step 2: Back off 360 degrees in sequence.
- Step 3: Tighten to 77 ft. lbs. (105 Nm).
- Step 4: Recheck all bolts to 77 ft. lbs. (105 Nm).
- Tighten all bolts an additional 90 degrees.
- Install push rods into their original locations.
- Inspect rocker housing gasket for cuts and proper installation into groove. Replace if damaged.
- Install rocker housing and bolts. Tighten to 18 ft lbs. (24 Nm).
- Install the fuel injectors.
- Lubricate valve stem tips and install the crossheads in their original locations.
- Lubricate the rocker arms and pedestals and install them in their original locations. Install the bolts and torque them to 27 ft. lbs. (36 Nm).
- Verify that the valve lash settings are maintained. Refer to valve lash adjustment.
- Install cylinder head cover gasket onto rocker housing.
- Install injector harness nuts. Tighten to11inch lbs. (1.25 Nm).
- Connect injector harness connectors at cylinder head cover gasket.
- Install wire harness P-clip to cylinder head behind filter housing 18 ft. lbs. (24 Nm).
- Connect the IAT/MAP sensor connector.
- Install the fuel filter housing assembly and hand tighten mounting bolts, Do not torque at this time.
- Connect WIF sensor, and fuel heater.
WARNINGFailure to follow procedure will result in fuel leaks and/or fuel system failure. - Install the fuel rail and high pressure fuel lines as follows:
- Hand tighten fuel rail bolts.
- Hand tighten fuel drain line to pressure limiting valve. Hand tighten banjo bolt at fuel filter housing.
- Hand tighten fuel rail-to-cylinder head high pressure fuel lines.
- Install fuel line brace bolts-to-intake manifold finger tight for fuel lines No. 2 thru No. 5.
- Install fuel line brace nut to rear lift bracket stud, finger tight, for fuel line No. 6.
- Hand tighten fuel pump to fuel rail line.
- Tighten fuel line nuts at cylinder head to 22 ft. lbs. (30 Nm).
- Tighten fuel line nuts at fuel rail to 22 ft. lbs. (30 Nm).
- Using a back up wrench, torque fuel pump to fuel rail line to 27 ft. lbs. (37 Nm). At injection pump.
- Tighten fuel pump to fuel rail line to 27 ft. lbs. (37 Nm). at fuel rail.
- Tighten fuel drain banjo bolt at pressure limiting valve and front of fuel filter housing to 18 ft. lbs. (24 Nm).
- Tighten fuel line brace bolts to 18 ft. lbs. (24 Nm).
- Tighten fuel line brace nut to 18 ft. lbs. (24 Nm).
- Tighten rail bolts to 18 ft. lbs. (24 Nm).
- Connect fuel pressure sensor.
- Tighten fuel filter mounting bolts to 18 ft. lbs. (24 Nm).
- Reposition number 6 fuel line shield and tighten to 32 ft. lbs. (43 Nm).
- Install the fuel filter to injection pump low pressure line. Inspect and replace sealing washers if necessary. Torque banjo bolts to 18 ft. lbs. (24 Nm).
- Connect fuel return line at back of cylinder head hand tight.
- Connect fuel return line at filter housing hand tight.
- Tighten banjo connections at cylinder head and fuel filter housing to 18 ft. lbs. (24 Nm).
- Install bracket to rear of filter housing. Torque to 18 ft. lbs. (24 Nm).
- Using new gaskets, install the intake grid heater and air inlet housing. Tighten bolts to 18 ft. lbs. (24 Nm).
- Install wire harness P-clip and push on clip to air inlet housing.
- Connect engine oil level indicator tube at fuel filter housing and at air inlet housing.
- Install the charge air cooler-to-air inlet housing duct assembly. Tighten all clamps to 100 inch lbs. (11 Nm).
- Connect intake grid heater wires.
- Secure engine harness to front of cylinder head with bolt at four locations.
- Connect engine coolant temperature sensor connector.
- Connect radiator upper hose to thermostat housing.
- Rotate generator into position. Install upper bolt and torque upper and lower bolts.
- Install wire harness push-on clip below bracket.
- Install wire harness P-clip to top of bracket.
- Install fan support and torque to 24 ft. lbs. (32 Nm).
- Install cooling fan/drive.
- Install accessory drive belt
- Install exhaust manifold/turbocharger assembly, using new gaskets. Start all bolts/spacers by hand. Starting from the center bolts out, Tighten bolts to 32 ft. lbs. (43 Nm), then retighten from the center out again.
- Install exhaust manifold heat shield to exhaust manifold studs. Install retaining nuts. Tighten to 18 ft. lbs. (24 Nm).
- Install exhaust bolt retention straps across cylinders 5 & 6.
- Using a new gasket, connect the turbocharger oil drain tube. Tighten to 18 ft. lbs. (24 Nm).
- Pre-lube turbocharger with 1-2 oz. (29.9-59.14 ml) clean engine oil.
- Connect the turbocharger oil supply line. Tighten to 18 ft. lbs. (24 Nm).
- Install air cleaner housing and duct.
- Connect air inlet temperature/pressure sensor.
- Raise vehicle on hoist.
NOTEDo not reuse the clamp for the exhaust pipe to turbocharger elbow connection. - Install the exhaust pipe to turbocharger elbow using a new clamp. Torque bolts to 100 in. lbs. (11 Nm).
- Lower the vehicle.
- Fill engine with coolant.
- Start engine and check for leaks.
These details will help.
Thanks.
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