2001 DODGE RAM engine

(2) Turn crankshaft to line up the timing mark
with the crankshaft and camshaft centerline.
(3) Put chain on camshaft sprocket.
(4) Align timing marks and install chain and cam-
shaft sprocket onto crankshaft sprocket. Check to see
that timing marks are on the centerline of the crank-
shaft and camshaft centerline (Fig. 82).
(5) Install the camshaft bolt. Tighten the bolt to 61
N´m (45 ft. lbs.) torque.
(6) Check camshaft end play. The end play should
be 0.051-0.152 mm (0.002-0.006 inch) with a new
thrust plate and up to 0.254 mm (0.010 inch) with a
used thrust plate. If not within these limits install a
new thrust plate.
(7) Install timing chain cover (Refer to 9 -
ENGINE/VALVE TIMING/TIMING BELT / CHAIN
COVER(S) - INSTALLATION).
Fig. 82 Alignment of Timing Marks
1 - CAMSHAFT SPROCKET
2 - CRANKSHAFT SPROCKET
3 - TIMING MARKS
9 - 228 ENGINE 8.0LBR/BE
TIMING BELT/CHAIN AND SPROCKETS (Continued)

ENGINE 5.9L DIESEL
TABLE OF CONTENTS
page page
ENGINE 5.9L DIESEL
DESCRIPTION..........................231
DIAGNOSIS AND TESTING................232
ENGINE DIAGNOSIS - MECHANICAL.......232
SMOKE DIAGNOSIS CHARTS............234
STANDARD PROCEDURE.................237
FORM-IN-PLACE GASKETS AND SEALERS . . 237
REPAIR DAMAGED OR WORN THREADS . . . 238
HYDROSTATIC LOCK...................238
REMOVAL.............................238
INSTALLATION..........................241
SPECIFICATIONS........................242
SPECIAL TOOLS........................244
ENGINE DATA PLATE
DESCRIPTION..........................244
AIR CLEANER ELEMENT
REMOVAL.............................244
INSTALLATION..........................245
CYLINDER HEAD
DESCRIPTION..........................246
REMOVAL.............................246
CLEANING.............................248
INSPECTION...........................250
INSTALLATION..........................250
CYLINDER HEAD COVER(S)
REMOVAL.............................253
CLEANING.............................253
INSPECTION...........................253
INSTALLATION..........................253
INTAKE/EXHAUST VALVES & SEATS
DESCRIPTION..........................253
STANDARD PROCEDURE.................253
VALVES, GUIDES AND SPRINGS..........253
VALVE LASH ADJUSTMENT AND
VERIFICATION........................256
REMOVAL.............................258
INSTALLATION..........................260
ROCKER ARM / ADJUSTER ASSY
DESCRIPTION..........................261
REMOVAL.............................261
CLEANING.............................262
INSPECTION...........................262
INSTALLATION..........................263
ENGINE BLOCK
STANDARD PROCEDURE.................263
CYLINDER BORE REFACING.............263
CYLINDER BORE DE-GLAZE.............264
CYLINDER BORE REPAIR...............265
CAM BORE REPAIR....................267INSPECTION...........................267
CAMSHAFT & BEARINGS (IN BLOCK)
REMOVAL.............................268
INSPECTION...........................272
INSTALLATION..........................273
CONNECTING ROD BEARINGS
STANDARD PROCEDURE.................274
CONNECTING ROD BEARING AND
CRANKSHAFT JOURNAL CLEARANCE......274
CRANKSHAFT
DESCRIPTION..........................275
CRANKSHAFT MAIN BEARINGS
STANDARD PROCEDURE.................275
MAIN BEARING CLEARANCE............275
CRANKSHAFT OIL SEAL - FRONT
REMOVAL.............................276
INSTALLATION..........................277
CRANKSHAFT OIL SEAL - REAR
REMOVAL.............................278
INSTALLATION..........................278
CRANKSHAFT REAR OIL SEAL RETAINER
REMOVAL.............................278
INSTALLATION..........................279
SOLID LIFTERS/TAPPETS
REMOVAL.............................280
CLEANING.............................281
INSPECTION...........................281
INSTALLATION..........................281
PISTON & CONNECTING ROD
DESCRIPTION..........................282
STANDARD PROCEDURE.................282
PISTON GRADING....................282
REMOVAL.............................285
CLEANING.............................285
INSPECTION...........................285
INSTALLATION..........................287
PISTON RINGS
STANDARD PROCEDURE.................288
PISTON RINGS - FITTING...............288
VIBRATION DAMPER
REMOVAL.............................289
INSPECTION...........................289
INSTALLATION..........................289
FRONT MOUNT
REMOVAL.............................290
INSTALLATION..........................290
REAR MOUNT
REMOVAL.............................291
INSTALLATION..........................291
BR/BEENGINE 5.9L DIESEL 9 - 229

LUBRICATION
DESCRIPTION..........................292
OPERATION............................292
DIAGNOSIS AND TESTING................295
ENGINE OIL PRESSURE................295
OIL
STANDARD PROCEDURE.................295
ENGINE OIL LEVEL....................295
ENGINE OIL SERVICE..................295
OIL COOLER & LINES
CLEANING.............................296
OIL FILTER
REMOVAL.............................296
INSTALLATION..........................296
OIL PAN
REMOVAL.............................296
CLEANING.............................297
INSPECTION...........................297
INSTALLATION..........................297
OIL PRESSURE RELIEF VALVE
REMOVAL.............................297
CLEANING.............................297
INSPECTION...........................297
INSTALLATION..........................298
OIL PRESSURE SENSOR/SWITCH
DESCRIPTION..........................298OPERATION............................298
REMOVAL.............................298
INSTALLATION..........................299
OIL PUMP
REMOVAL.............................299
CLEANING.............................299
INSPECTION...........................299
INSTALLATION..........................300
INTAKE MANIFOLD
REMOVAL.............................301
CLEANING.............................302
INSPECTION...........................302
INSTALLATION..........................302
EXHAUST MANIFOLD
REMOVAL.............................303
CLEANING.............................304
INSPECTION...........................304
INSTALLATION..........................304
GEAR HOUSING
REMOVAL.............................304
INSTALLATION..........................305
GEAR HOUSING COVER
REMOVAL.............................306
INSTALLATION..........................307
9 - 230 ENGINE 5.9L DIESELBR/BE

ENGINE 5.9L DIESEL
DESCRIPTION
The cylinder block is constructed of cast iron. The
casting is a skirted design which incorporates longi-
tudal ribs for superior strength and noise reduction.
The block incorporates metric straight thread o-ring
fittings at lubrication oil access points. The engine is
manufactured with the cylinders being a non-sleeved
type cylinder. However, one approved service method
is to bore out the cylinders and add cylinder sleeves
to the cylinder block.
The cylinders are numbered front front to rear
(Fig. 1); 1 to 6. The firing order is 1±5±3±6±2±4.
CumminsT24 Valve Turbo Diesel Engine
Fig. 1 Cylinder Numbering
BR/BEENGINE 5.9L DIESEL 9 - 231

DIAGNOSIS AND TESTINGÐENGINE DIAGNOSIS - MECHANICAL
CONDITION POSSIBLE CAUSES CORRECTION
LUBRICATING OIL
PRESSURE LOW1. Low oil level. 1. (a) Check and fill with clean engine oil.
(b) Check for a severe external oil leak that
could reduce the pressure.
2. Oil viscosity thin, diluted or wrong
specification.2. Verify the correct engine oil is being
used. (Refer to LUBRICATION &
MAINTENANCE/FLUID TYPES -
DESCRIPTION).
3. Improperly operating pressure
switch/gauge.3. Verify the pressure switch is functioning
correctly. If not, replace switch/gauge.
4. Relief valve stuck open. 4. Check/replace valve.
5. Plugged oil filter. 5. Change oil filter.
6. If cooler was replaced, shipping
plugs may have been left in cooler6. Check/remove shipping plugs.
7. Worn oil pump. 7. Check and replace oil pump.
8. Suction tube loose or seal leaking. 8. Check and replace seal.
9. Loose main bearing cap. 9. Check and install new bearing. Tighten
cap to proper torque.
10. Worn bearings or wrong bearings
installed.10. Inspect and replace connecting rod or
main bearings. Check and replace piston
cooling nozzles.
11. Oil jet under piston bad fit into
main carrier.11. Check oil jet position.
LUBRICATING OIL
PRESSURE TOO HIGH1. Pressure switch/gauge not
operating properly.1. Verify pressure switch is functioning
correctly. If not, replace switch/gauge.
2. Engine running to cold. 2. Refer to Coolant Temperature Below
Normal (Refer to 7 - COOLING -
DIAGNOSIS AND TESTING).
3. Oil viscosity too thick. 3. Make sure the correct oil is being used.
(Refer to LUBRICATION &
MAINTENANCE/FLUID TYPES -
DESCRIPTION).
4. Oil pressure relief valve stuck
closed or binding4. Check and replace valve.
LUBRICATING OIL LOSS 1. External leaks. 1. Visually inspect for oil leaks. Repair as
required.
2. Crankcase being overfilled. 2. Verify that the correct dipstick is being
used.
3. Incorrect oil specification or
viscosity.3. (a) Make sure the correct oil is being
used (Refer to LUBRICATION &
MAINTENANCE/FLUID TYPES -
DESCRIPTION).
(b) Look for reduced viscosity from dilution
with fuel.
(c) Review/reduce oil change intervals.
9 - 232 ENGINE 5.9L DIESELBR/BE
ENGINE 5.9L DIESEL (Continued)

CONDITION POSSIBLE CAUSES CORRECTION
4. Oil cooler leak 4. Check and replace the oil cooler.
5. High blow-by forcing oil out the
breather.5. Check the breather tube area for signs of
oil loss. Perform the required repairs.
6. Turbocharger leaking oil to the air
intake.6. Inspect the air ducts for evidence of oil
transfer. Repair as required.
7. Piston rings not sealing (oil being
consumed by the engine).7. Perform blow-by check. Repair as
required.
COMPRESSION KNOCKS 1. Air in the fuel system. 1. Bleed the fuel system (Refer to 14 -
FUEL SYSTEM/FUEL DELIVERY -
STANDARD PROCEDURE).
2. Poor quality fuel or water/gasoline
contaminated fuel.2. Verify by operating from a temporary
tank with good fuel. Clean and flush the
fuel tank. Replace fuel/water separator filter.
3. Engine overloaded. 3. Verify the engine load rating is not being
exceeded.
4. Incorrect injection pump timing. 4. Check injection pump for proper
installation.
5. Improperly operating injectors. 5. Check and replace inoperative injectors.
EXCESSIVE VIBRATION 1. Loose or broken engine mounts. 1. Replace engine mounts.
2. Damaged fan or improperly
operating accessories.2. Check and replace the vibrating
components.
3. Improperly operating vibration
damper3. Inspect/replace vibration damper.
4. Improperly operating viscous fan
drive.4. Inspect/replace fan drive.
5. Worn or damaged generator
bearing.5. Check/replace generator.
6. Flywheel housing misaligned. 6. Check/correct flywheel alignment.
7. Loose or broken power
component.7. Inspect the crankshaft and rods for
damage that causes an unbalance
condition. Repair/replace as required.
8. Worn or unbalanced driveline
components.8. Check/repair driveline components.
EXCESSIVE ENGINE
NOISES1. Drive belt squeal, insufficient
tension or abnormally high loading.1. Check the automatic tensioner and
inspect the drive belt. Make sure water
pump, tensioner pulley, fan hub and
generator turn freely.
2. Intake air or exhaust leaks. 2. Refer to Excessive Exhaust Smoke
(Refer to 9 - ENGINE - DIAGNOSIS AND
TESTING).
3. Excessive valve lash. 3. Adjust valves. Make sure the push rods
are not bent and rocker arms, adjusting
screws, crossheads, are not severely worn.
Replace bent or severely worn components.
BR/BEENGINE 5.9L DIESEL 9 - 233
ENGINE 5.9L DIESEL (Continued)

CONDITION POSSIBLE CAUSES CORRECTION
4. Turbocharger noise. 4. Check turbocharger impeller and turbine
wheel for housing contact. Repair/replace
as required.
5. Gear train noise. 5. Visually inspect and measure gear
backlash. Replace gears as required.
6. Power function knock. 6. Check/replace rod and main bearings.
DIAGNOSIS AND TESTINGÐSMOKE
DIAGNOSIS CHARTS
The following charts include possible causes and
corrections forexcess or abnormalexhaust smoke.Small amounts of exhaust smoke (at certain times)
are to be considered normal for a diesel powered
engine.
EXCESSIVE BLACK SMOKE
POSSIBLE CAUSE CORRECTION
Air filter dirty or plugged. Check Filter MinderTat air filter (Refer to 9 - ENGINE/
AIR INTAKE SYSTEM/AIR CLEANER ELEMENT -
REMOVAL).
Air intake system restricted. Check entire air intake system including all hoses and
tubes for restrictions, collapsed parts or damage.
Repair/replace as necessary.
Air Leak in Intake System. Check entire air intake system including all hoses and
tubes for cracks, loose clamps and/or holes in rubber
ducts. Also check intake manifold for loose mounting
hardware.
Diagnostic Trouble Codes (DTC's) active or multiple,
intermittent DTC's.Refer to Powertrain Diagnostic Procedures Information.
Engine Control Module (ECM) not calibrated or ECM
has incorrect calibration.Refer to Powertrain Diagnostic Procedures Information.
Exhaust system restriction is above specifications. Check exhaust pipes for damage/restrictions. Repair as
necessary.
Fuel grade is not correct or fuel quality is poor. Temporarily change fuel brands and note condition.
Change brand if necessary.
Fuel injection pump malfunctioning. A DTC should have been set. If so, refer to Powertrain
Diagnostic Procedures Information.
Fuel injector malfunctioning. A DTC should have been set. Perform9Cylinder
Balance Test9using DRB scan tool to isolate individual
cylinders. Also refer to Powertrain Diagnostic
Procedures Information and, to (Refer to 14 - FUEL
SYSTEM/FUEL INJECTION/FUEL INJECTOR -
DIAGNOSIS AND TESTING).
Fuel return system restricted. Check fuel return line by checking overflow valve
(Refer to 14 - FUEL SYSTEM/FUEL DELIVERY -
DIAGNOSIS AND TESTING).
Intake manifold restricted. Remove restriction.
Manifold Air Pressure (Boost) Sensor or sensor circuit
malfunctioning.A DTC should have been set. Refer to Powertrain
Diagnostic Procedures Information.
9 - 234 ENGINE 5.9L DIESELBR/BE
ENGINE 5.9L DIESEL (Continued)

EXCESSIVE BLACK SMOKE
POSSIBLE CAUSE CORRECTION
Raw fuel in intake manifold. Fuel injectors leaking on engine shutdown. Do Fuel
Injector Test (Refer to 14 - FUEL SYSTEM/FUEL
INJECTION/FUEL INJECTOR - DIAGNOSIS AND
TESTING).
Static timing not correct. A DTC should have been set. If so, refer to Powertrain
Diagnostic Procedures Information. Also (Refer to 14 -
FUEL SYSTEM/FUEL DELIVERY/FUEL INJECTION
PUMP - DIAGNOSIS AND TESTING).
Turbocharger air intake restriction. Remove restriction.
Turbocharger damaged. (Refer to 11 - EXHAUST SYSTEM/TURBOCHARGER
SYSTEM/TURBOCHARGER - INSPECTION).
Turbocharger has excess build up on compressor
wheel and/or diffuser vanes.(Refer to 11 - EXHAUST SYSTEM/TURBOCHARGER
SYSTEM/TURBOCHARGER - CLEANING).
Turbocharger wheel clearance out of specification. (Refer to 11 - EXHAUST SYSTEM/TURBOCHARGER
SYSTEM/TURBOCHARGER - INSPECTION).
EXCESSIVE WHITE SMOKE
POSSIBLE CAUSE CORRECTION
Air in fuel supply: Possible leak in fuel supply side
(between transfer pump and fuel tank module).(Refer to 14 - FUEL SYSTEM/FUEL DELIVERY/FUEL
TRANSFER PUMP - DIAGNOSIS AND TESTING).
Coolant leaking into combustion chamber. Do pressure test of cooling system (Refer to 7 -
COOLING - DIAGNOSIS AND TESTING).
Diagnostic Trouble Codes (DTC's) active or multiple,
intermittent DTC's.Refer to Powertrain Diagnostic Procedures Information.
In very cold ambient temperatures, engine block heater
is malfunctioning (if equipped).(Refer to 7 - COOLING/ENGINE/ENGINE BLOCK
HEATER - REMOVAL).
Engine coolant temperature sensor malfunctioning. A DTC should have been set. Refer to Powertrain
Diagnostic Procedures Information. Also check
thermostat operation (Refer to 7 - COOLING/ENGINE/
ENGINE COOLANT THERMOSTAT - DIAGNOSIS AND
TESTING).
Engine Control Module (ECM) not calibrated or has
incorrect calibration.A DTC should have been set. Refer to Powertrain
Diagnostic Procedures Information.
Fuel filter plugged. Perform Fuel Pressure Drop Test (Refer to 14 - FUEL
SYSTEM/FUEL DELIVERY/FUEL TRANSFER PUMP -
DIAGNOSIS AND TESTING).
Fuel grade not correct or fuel quality is poor. Temporarily change fuel brands and note condition.
Change brand if necessary.
Fuel heater element or fuel heater temperature sensor
malfunctioning. This will cause wax type build-up in fuel
filter.Refer to Fuel Heater Testing (Refer to 14 - FUEL
SYSTEM/FUEL DELIVERY/FUEL HEATER -
DIAGNOSIS AND TESTING).
Fuel injector malfunctioning. A DTC should have been set. Perform9Cylinder
Balance Test9using DRB scan tool to isolate individual
cylinders. Also refer to Powertrain Diagnostic
Procedures Information and, (Refer to 14 - FUEL
SYSTEM/FUEL INJECTION/FUEL INJECTOR -
DIAGNOSIS AND TESTING).
Fuel injector hold-downs loose. Torque to specifications.
BR/BEENGINE 5.9L DIESEL 9 - 235
ENGINE 5.9L DIESEL (Continued)