Page 2009 of 5267
7. Measure the clearance of the gerotor drive/gerotor
planetary (2)to port plate (1). Maximum clearance
is 0.127 mm (0.005 inch). If the oil pump is out of
limits, replace the pump.
8. Measure the clearance of the gerotor planetary to
the body bore (1). Maximum clearance is 0.381
mm (0.015 inch). If the oil pump is out of limits,
replace the pump.
9. Measure the gears backlash (3,4). The limits of a
used pump is 0.15- 0.25 mm (0.006-0.010 inch). If
the backlash is out of limits, replace the oil pump.
10. Install the back plate.
INSTALLATION
1. Lubricate the pump withclean engine oil. Filling the
pump with clean engine oil during installation will
help to prime the pump at engine start up.
2. Install the pump. Verify the idler gear pin is
installed in the locating bore in the cylinder block.
Tighten the oil pump mounting bolts in two steps, in
the sequence shown in.
Step 1—Tighten to 8 Nꞏm (71 in. lbs.) torque.
Step 2—Tighten to 24 Nꞏm (18 ft. lbs.) torque.
Page 2010 of 5267

3. The back plate on the pump seats against the bot-
tom of the bore in the cylinder block. When the
pump is correctly installed, the flange on the pump
will not touch the cylinder block.
4. Measure the idler gear to pump drive gear back-
lash and the idler gear to crankshaft gear backlash.
The backlash should be 0.15- 0.25 mm
(0.006-0.010 inch). If the backlash is out of limits,
replace the oil pump.
5. If the adjoining gear moves when you measure the
backlash, the reading will be incorrect.
6. Apply a bead of Mopar
Silicone Rubber Adhesive Sealant or equivalent to the gear housing cover sealing sur-
face.
7. Install the gear housing cover (Refer to 9 - ENGINE/VALVE TIMING/GEAR HOUSING COVER - INSTALLA-
TION).
8. Install the vibration damper (Refer to 9 - ENGINE/ENGINE BLOCK/VIBRATION DAMPER - INSTALLATION) and
speed indicator ring.
9. Install the fan support/hub assemblyRefer to (Refer to 7 - COOLING/ENGINE/RADIATOR FAN - INSTALLA-
TION)
10. Install power steering pump.
11. Install accessory drive belt tensioner. Torque bolt to 43 Nꞏm (32 ft. lbs.).
12. Install the accessory drive belt (Refer to 7 - COOLING/ACCESSORY DRIVE/DRIVE BELTS - INSTALLATION).
13. Install the cooling fan (Refer to 7 - COOLING/ENGINE/RADIATOR FAN - INSTALLATION).
14. Connect battery negative cables.
15. Start engine and check for oil leaks.
Page 2011 of 5267

MANIFOLD - INTAKE
REMOVAL
1. Disconnect the battery negative cables.
2. Remove the charge air cooler outlet tube (6) from
the air inlet housing (8).
3. Remove the engine oil dipstick tube mounting bolt.
4. Remove dipstick support at fuel filter housing. Posi-
tion dipstick tube to the side.
5. Disconnect the air grid heater power cables at the
cable mounting studs.
6. Remove the engine wiring harness connections at
the air inlet housing elbow.
7. Remove the four (4) air inlet housing mounting
bolts and remove the housing from top of the
heater elements.
8. Remove the intake air grid heater (1)from the
manifold.
9. Remove the high pressure fuel lines and fuel rail (Refer to 14 - FUEL SYSTEM/FUEL DELIVERY/FUEL LINES
- REMOVAL).
10. Disconnect manifold air temperature/pressure sensor connector.
11. Remove the remaining intake manifold cover-to-cylinder head bolts.
12. Remove the intake manifold cover and gasket. Keep the gasket material and any other material out of the air
intake.
13. Clean the intake manifold cover and cylinder head sealing surface.
Page 2012 of 5267

CLEANING
Clean manifold in solvent and blow dry with compressed air.
Clean cylinder block gasket surfaces using a suitable solvent.
The plenum pan rail must be clean and dry (free of all foreign material).
INSPECTION
Inspect manifold for cracks.
Inspect mating surfaces of manifold for flatness with a straightedge.
INSTALLATION
1. Using a new gasket, install the intake manifold cover.
2. Install the cover-to-cylinder head bolts that do not hold down the fuel rail.Tightentheboltsto24Nꞏm(18ft.lbs.)
torque.
3. Install the high pressure rail and fuel lines (Refer to 14 - FUEL SYSTEM/FUEL DELIVERY/FUEL LINES -
INSTALLATION).
4. Using two (2) new gaskets, install the intake air grid heater and air inlet housing.
5. Connect the manifold air temperature/pressure sensor connector.
6. Install and tighten the air intake heater power supply nut to 14 Nꞏm (120 in. lbs.) torque.
7. Install oil dipstick tube support at fuel filter housing.
8. Install the engine oil dipstick tube and mounting bolt.
9. Position the charge air cooler outlet tube onto the air inlet housing. Tightentheclampsto11Nꞏm(100in.lbs.)
torque.
10. Attach the engine wire harness to the air inlet housing.
11. Prime the fuel system. Refer to the fuel priming procedure in Group 14, Fuel System.
12. Connect the battery negative cables.
Page 2013 of 5267

MANIFOLD - EXHAUST
REMOVAL
1. Disconnect the battery negative cables.
2. Raise vehicle on hoist.
3. Disconnect the exhaust pipe from the turbocharger
elbow.
4. Disconnect oil drain tube from turbocharger.
5. Lower vehicle.
6. Disconnect the electronic wastegate command
valve from harness.
7. Disconnect the turbocharger air inlet hose.
8. Remove air cleaner assembly.
9. Disconnect the turbocharger oil supply line.
10. Disconnect the charge air cooler inlet pipe from
the turbocharger.
11. Remove the turbocharger and gasket from the
exhaust manifold.
12. Remove the cab heater return pipe nut from the
exhaust manifold stud. Position the tube out of the
way.
13. Remove heat shield.
14. Remove exhaust manifold bolt lockplates (1).
15. Remove the exhaust manifold-to-cylinder head
bolts(2,6) and spacers (3).
16. Remove the exhaust manifold and gaskets.
CLEANING
Clean the cylinder head and exhaust manifold sealing surfaces with a suitable scraper. Use a Scotch-Brite™ pad or
equivalent.
INSPECTION
Inspect the exhaust manifold for cracks. Measure the exhaust manifold forflatness. Place a ruler over all of the
exhaust ports and insert a feeler gauge between the port flange and the ruler. Maximum deviation from flat is 0.20
mm (.008 inch).
INSTALLATION
1. Using new exhaust manifold gaskets, install the exhaust manifold. Install the bolts and spacers and tighten the
bolts in the sequence shown in to 43 Nꞏm (32 ft. lbs.) torque.
2. Retorque the four center bolts.
3. Install heat shield and torque nuts to 24 Nm (18 ft. lbs.).
4. Install cab heater tube.
5. Install exhaust manifold bolt retention straps.
6. Install the cab heater return tube brace to the manifold bolt stud. Tighten the nut to 24 Nꞏm (18 ft. lbs.) torque.
7. Install the turbocharger and a new gasket. Tighten the turbocharger mountingnutsto43Nꞏm(32ft.lbs.)torque.
8. Raise vehicle on hoist.
9. Install the oil drain tube and a new gasket to the turbocharger. Tighten the drain tube bolts to 24 Nꞏm (18 ft. lbs.)
torque.
NOTE: A new exhaust pipe to turbocharger elbow must be used. Do not reuse clamp.
Page 2014 of 5267
10. Connect the exhaust pipe to the turbocharger and tighten the bolts to 11Nꞏm (100 ft. lbs.) torque.
11. Connect the wastegate command valve connector.
12. Lower the vehicle.
13.Pre-lube the turbocharger.Pour 50 to 60 cc (2 to 3 oz.) clean engine oil in the oil supply line fitting on the
turbo. Rotate the turbocharger impeller by hand to distrubute the oil thoroughly.
14. Install and tighten the oil supply line fitting nut to 24 Nꞏm (18 ft. lbs.) torque.
15. Position the charge air cooler inlet pipe to the turbocharger. With theclamp in position, tighten the clamp nut to
11 Nꞏm (95 in. lbs.) torque.
16. Position the air inlet hose to the turbocharger. Tighten the clamp to 4 Nꞏm (35 in. lbs.) torque.
17. Connect the battery negative cables.
18. Start the engine to check for leaks.
Page 2015 of 5267

VALVE TIMING
STANDARD PROCEDURE - TIMING VERIFICATION
1. Remove the cylinder head cover (Refer to 9 - ENGINE/CYLINDER HEAD/CYLINDER HEAD COVER(S) -
REMOVAL).
2. Remove fuel injector from cylindernumber 1 (Refer to 14 - FUEL SYSTEM/FUEL INJECTION/FUEL INJECTOR
- REMOVAL).
3. Using Special Tool 7471B rotate the engine until the TDC mark on the damper is at 12 o’clock.
4. Using a 8 in.x 1/4 in. dowel rod inserted into cylinder number 1, rock the crankshaft back and forth to verify
piston number 1 is at TDC.
5. With cylinder number still at TDC, inspect the keyway on the crankshaft gear for proper alignment (12 o’clock
position).
6. If the keyway is not at 12 o’clock position replace the crankshaft gear assembly.
7. If the keyway is at 12 o’clock position, remove front gear cover and verify timing mark alignment between the
camshaft gear and crankshaft gear, if not aligned inspect keyway on camshaft gear.
8. Inspect keyway on camshaft gear for proper alignment with the key in the camshaft, if alignment is off replace
the camshaft/gear assembly.
9. If timing marks alignment is off and no damage is found at either the crankshaft or camshaft gear keyways,
realign timing marks as necessary.
Page 2016 of 5267

CASE - FRONT
REMOVAL
1. Disconnect the battery negative cables.
2. Raise vehicle on hoist.
3. Partially drain engine coolant into container suitable for re-use (Refer to 7 - COOLING - STANDARD PROCE-
DURE).
4. Lower vehicle.
5. Remove radiator upper hose.
6. Disconnect coolant recovery bottle hose from radiator filler neck.
7. Remove viscous fan/drive/shroud assembly (Refer to 7 - COOLING/ENGINE/RADIATOR FAN - REMOVAL).
8. Remove the accessory drive belt (Refer to 7 - COOLING/ACCESSORY DRIVE/DRIVE BELTS - REMOVAL).
9. Remove the cooling fan support/hub from the front of the engine.
10. Raisethevehicleonhoist.
11. Remove the crankshaft damper (Refer to 9 - ENGINE/ENGINE BLOCK/VIBRATION DAMPER - REMOVAL) and
speed indicator ring.
12. Remove the lower fan shroud bracket.
13. Remove the upper fan shroud bracket that is mounted to the gear housing.
14. Lower the vehicle.
15. Remove the power steering pump.
16. Remove the accessory drive belt tensioner.
17. Remove the gear cover-to-housing bolts and gently pry the cover away from the housing, taking care not to mar
the gasket surfaces.
18. Remove the fuel injection pump (Refer to 14 - FUEL SYSTEM/FUEL DELIVERY/FUEL INJECTION PUMP -
REMOVAL).
19. Disconnect the camshaft position sensor connector.
20. Disconnect and remove engine speed sensor.
21. Remove the camshaft (Refer to 9 - ENGINE/ENGINE BLOCK/CAMSHAFT & BEARINGS (IN BLOCK) -
REMOVAL).
22. Remove the six front oil pan fasteners.
23. Remove the gear housing fasteners.
NOTE: Use care when removing the gear housing, to avoid damage to the oil pangasket, as the gasket will
be reused if it is not damaged.
24. Slide a feeler gauge between the gear housing and oil pan gasket, to break the gasket seal.
25. Remove the gear housing and gasket.
26. Clean the gasket material from the cylinder block and gear housing.