Section 13 (Engine - 6.0L Diesel): Disassembly: Engine: Disassembly
WARNING: This page is about a different variant/trim than selected.
- Remove the bolts and the flexplate/flywheel.
- Mount the engine on an engine stand.
- Remove the rear lifting eye.
- Remove the front lifting brackets.
- Remove the three bolts and the starter.
- Remove the bolts and the LH and RH motor mounts.NOTE: Left side shown, right side similar.
- Remove the retaining nuts and the glow plug control module and mounting bracket.
- Remove the oil level indicator and tube.
- Remove the nut.
- Remove and discard the O-ring.
- Disconnect the exhaust backpressure tube at the exhaust manifold.
- Remove the retaining nut and the exhaust backpressure tube assembly.
- Remove the thermostat.
- Remove the stud bolt and bolt.
- Remove and discard the O-ring.
- Remove the bolt and the fuel lines and bracket.
- Remove the left cylinder head banjo fitting and fuel line. Discard the sealing washers.
- Remove the bolt and serpentine belt idler.
- Remove the bolts and serpentine belt tensioner.
- Remove and discard the O-rings from the oil filter base.
- Remove the exhaust gas recirculation (EGR) cooler coolant supply port cover.
- Remove the bolts.
- Clean and inspect the gaskets. Replace if necessary.
- Clean and inspect the sealing surfaces.
- Remove the oil filter base.
- Remove the bolts.
- Clean and inspect the gaskets. Replace if necessary.
- Clean and inspect the sealing surfaces.
- Remove the oil cooler assembly.NOTE: The oil cooler is replaced as an assembly.
- Remove the bolts.
- Clean and inspect the gaskets. Replace if necessary.
- Clean and inspect the sealing surfaces.
- Remove the oil pump inlet strainer. Clean and inspect for tears and other damage.
- Remove bolts and the turbocharger heat shield.
- Remove the high-pressure oil pump cover.
- Remove the bolts.
- Use a thin gasket scraper to separate the cover from the crankcase.
- Clean and inspect the gaskets. Replace if necessary.
- Clean and inspect the sealing surfaces.
- Remove the bolts from the high-pressure oil pump discharge pipe.
- Using the special tool, disconnect and remove the high-pressure oil pump discharge pipe.
- Remove and discard the D-ring seal.
- Remove and discard the high-pressure pump O-ring seal.
- Remove the bolts and the high-pressure oil pump.
- Remove and discard the lower O-ring seal.
- Remove the glow plug buss bar.NOTE: Left side shown, right side similar.
- Remove the eight glow plugs.
- Remove the valve covers.NOTE: Mark the location of the stud bolts.
- Remove the stud bolts and bolts.
- Clean and inspect the gaskets. Replace if necessary.
- Clean and inspect the sealing surfaces.
- Remove the bolts and the coolant pump pulley.
- Remove the coolant pump.
- Remove the bolts.
- Remove and discard the O-ring.
- Check the crankshaft vibration damper runout.
- Remove the paint from the face of the crankshaft vibration damper at four points 90 degrees apart.
- Attach the special tool to the cylinder block. Position the special tool on one of the unpainted surfaces.
- Using a suitable tool, pry the crankshaft forward. Zero the dial indicator.
- Rotate the crankshaft 90 degrees. Pry the crankshaft forward. Record the measurement. Repeat at each unpainted surface.NOTE: Pry the crankshaft forward at the same point to eliminate possible error caused by crankshaft end play.
- If the runout exceeds specification, install a new crankshaft vibration damper.
- Remove the bolts and the crankcase vibration damper.WARNING: To avoid personal injury, support the vibration damper during mounting bolt removal. The damper can slide off the nose of the crankshaft very easily.
- Discard the bolts.
- Punch two holes in the seal.
- Using the special tool, remove the crankshaft seal.
- If equipped, remove the crankshaft damper wear sleeve with the special tool.NOTE: Production engine will not have a wear sleeve.
- Remove the gerotor oil pump cover.
- Remove the bolts.
- Remove and discard the O-ring seal.
- Remove the inner and outer gerotors.NOTE: Mark the front of each gerotor for proper reassembly orientation.
- Remove the engine front cover.
- Remove the bolts.
- Clean and inspect the gaskets. Replace if necessary.
- Clean and inspect the sealing surfaces.
- Remove the flywheel adapter.
- Punch two holes across from each other in the rear main seal.
- Using the special tool, remove the rear main seal.
- If equipped with a crankshaft wear sleeve, use the special tool to remove the crankshaft rear wear sleeve.NOTE: Production engines will not have wear sleeve.
- Clean and inspect the crankshaft sealing surface.
- Remove the rear engine cover.
- Remove the bolts.
- Clean and inspect the gaskets. Replace if necessary.
- Clean and inspect the sealing surfaces.
- Remove the bolts and the RH exhaust manifold.
- Remove the bolts and the LH exhaust manifold.
- Using the special tool, disconnect the high-pressure oil rail supply line at the high-pressure oil rail.
- Using the special tool, disconnect and remove the high-pressure oil supply line.
- Remove the bolts and the high pressure oil rail.
- Using a socket, push the fuel injector electrical connector out of the rocker arm carrier.CAUTION: Do not attempt to put battery voltage to the fuel injector or damage to the fuel injector will occur.
- Remove the bolt, the fuel injector hold down and the fuel injector.CAUTION: To prevent engine damage, Do not use air tools to remove the fuel injectors. The clip that extracts the injector can dislodge and fall into the oil drain hole.NOTE: If engine oil is found in the engine coolant or engine coolant is found in the combustion chambers, new injector sleeves may need to be installed.
- Remove and discard the crankcase-to-head tube assembly.
- Remove the 10 head bolts.
- Remove the 16 bolts and the rocker arm assemblies.
- Remove the rocker arm carrier from the cylinder head.
- Remove the bolts.
- Clean and inspect the gaskets. Replace if necessary.
- Clean and inspect the sealing surfaces.
- Remove the 16 valve bridges.NOTE: Mark the location of the valve bridges before removing.
- Remove the 16 push rods.
- Remove the 10 outer head bolts.
- Remove the cylinder heads.
- Install the special tool.
- Install the bolts.
- Remove and discard the cylinder head gasket.
- Remove and discard the four cylinder head dowel sleeves.
- Remove the bolts from the rear engine tube assembly.
- Remove the bolt and the rear engine tube assembly.
- Remove the bolts and the roller follower guides.
- Remove the oil pan.
- Remove the 16 bolts.
- Remove the oil pan.
- Clean and inspect the gaskets. Replace if necessary.
- Clean and inspect the sealing surfaces.
- Remove the oil pick-up tube and the screen.
- Remove the bolts.
- Remove and discard the O-ring.
- Remove the upper oil pan.
- Remove the bolts.
- Clean and inspect the gaskets. Replace if necessary.
- Clean and inspect the sealing surfaces.
- Remove the bolts and the connecting rod caps.
- Using a wood or plastic hammer handle, push the connecting rod and piston assembly out of the cylinder bore.
- Remove the piston rings.
- Remove the top compression ring.
- Remove the intermediate compression ring.
- Remove the oil control ring.
- Remove and discard the connecting rod bearings.
- Remove the bolt and the crankshaft position (CKP) sensor.
- Remove the bolt and the camshaft position (CMP) sensor.
- Remove the block heater.
- Remove the 20 lower case bolts and the 8 outside lower crankcase bolts. Remove the lower crankcase assembly.
- Remove the lower crankcase seals and the lower bearings and discard.
- Using the appropriate lifting device, remove the crankshaft assembly.
- Remove and discard the crankshaft upper bearings and crankshaft upper thrust bearing.
- Remove the thrust plate mounting bolts and remove the camshaft and gear.CAUTION: Do not nick or scratch the camshaft bearings with the camshaft lobes or engine damage will occur.
- Remove the bolts and the eight piston cooling tubes.CAUTION: This patch bolt is unique - Do not substitute or engine damage can occur.
- Using the special tool, remove the camshaft bearings and discard.