Dodge Dakota (ND). Manual — part 836
21. After installing all chains, it is recommended that
the idler gear end play be checked. The end play
must be within 0.10 -0.25 mm (0.004 - 0.010 in.).
If not within specification, the idler gear ( 1) must
be replaced.
22. Install timing chain cover and crankshaft damper
(Refer to 9 - ENGINE/VALVE TIMING/TIMING
BELT / CHAIN COVER(S) - INSTALLATION) and
(Refer to 9 - ENGINE/ENGINE BLOCK/VIBRA-
TION DAMPER - INSTALLATION).
23. Install cylinder head covers (Refer to 9 - ENGINE/
CYLINDER HEAD/CYLINDER HEAD COVER(S) -
INSTALLATION).
NOTE: Before installing threaded plug in right cyl-
inder head, the plug must be coated with sealant
to prevent leaks.
24. Coat the large threaded access plug (2) with
Mopar
T
Thread Sealant with Teflon, then install
into the right cylinder head and tighten to 81 N·m
(60 ft. lbs.).
25. Install the oil fill housing.
26. Install access plug (1) in left cylinder head.
27. Install power steering pump (Refer to 19 -
STEERING/PUMP - INSTALLATION).
28. Fill cooling system (Refer to 7 - COOLING -
STANDARD PROCEDURE).
29. Connect negative cable to battery.
9 - 882
ENGINE - 3.7L SERVICE INFORMATION
ND
ENGINE - 4.7L SERVICE INFORMATION
TABLE OF CONTENTS
page
page
ENGINE - 4.7L SERVICE INFORMATION
DIAGNOSIS AND TESTING - ENGINE
DIAGNOSIS - INTRODUCTION . . . . . . . . . . . 884
DIAGNOSIS AND TESTING - ENGINE
DIAGNOSIS - PERFORMANCE . . . . . . . . . . 885
DIAGNOSIS AND TESTING - ENGINE
DIAGNOSIS - MECHANICAL . . . . . . . . . . . . 887
DIAGNOSIS AND TESTING - ENGINE
DIAGNOSIS - LUBRICATION . . . . . . . . . . . . 888
DIAGNOSIS AND TESTING - CYLINDER
COMPRESSION PRESSURE . . . . . . . . . . . . 889
DIAGNOSIS AND TESTING - CYLINDER
COMBUSTION PRESSURE LEAKAGE . . . . . 889
DAMAGED OR WORN THREADS . . . . . . . . 890
PLACE GASKETS AND SEALERS . . . . . . . . 890
. . . . . . . . . . . . . . . . . . . . 891
. . . . . . . . . . . . . . . . 897
. . . . . . . . . . . . . . . . . . . . . . . . . . . 908
SPECIFICATIONS - 4.7L H.O. ENGINE
. . . . . . . . . . . . . . . . . . . . . . . . 915
CLEANER-AIR ELEMENT
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 919
. . . . . . . . . . . . . . . . . . . . . . . . 919
CYLINDER HEAD
. . . . . . . . . . . . . . . . . . . . . . . . . . . 926
. . . . . . . . . . . . . . . . . . . . . . . . . . 926
INSTALLATION - LEFT CYLINDER HEAD
INSTALLATION - RIGHT CYLINDER HEAD
CAMSHAFT - LEFT
. . . . . . . . . . . . . . . . . . . . . . . . 931
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 932
. . . . . . . . . . . . . . . . . . . . . . . . 934
CAMSHAFT - RIGHT
. . . . . . . . . . . . . . . . . . . . . . . . 937
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 937
. . . . . . . . . . . . . . . . . . . . . . . . 939
COVER - CYLINDER HEAD
. . . . . . . . . . . . . . . . . . . . . . . . 942
. . . . . . . . . . . . . . . 942
. . . . . . . . . . . . . . . . 942
. . . . . . . . . . . . . . . . . . . . . . . . . . . 942
VALVES & SEATS - INTAKE/EXHAUST
. . . . . . . . . . . . . . . . . . . . . . . . 944
ROCKER ARM-VALVE
. . . . . . . . . . . . . . . . . . . . . . . . 944
DIAGNOSIS AND TESTING - HYDRAULIC
. . . . . . . . . . . . . . . . . . . . . 944
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 945
. . . . . . . . . . . . . . . . . . . . . . . . 945
SPRINGS-VALVE
. . . . . . . . . . . . . . . . . . . . . . . . 946
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 946
. . . . . . . . . . . . . . . . . . . . . . . . 947
SEALS-VALVE GUIDE
. . . . . . . . . . . . . . . . . . . . . . . . 947
ENGINE BLOCK
. . . . . . . . . . . . . . . . . . . . . . . . 947
STANDARD PROCEDURE - CYLINDER BORE
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 948
. . . . . . . . . . . . . . . . . . . . . . . . . . . 948
BEARINGS-CONNECTING ROD
STANDARD PROCEDURE - CONNECTING
. . . . . . . . . . . . . . . 949
PLUGS - CORE
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 952
. . . . . . . . . . . . . . . . . . . . . . . . 952
CRANKSHAFT
. . . . . . . . . . . . . . . . . . . . . . . . 952
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 952
. . . . . . . . . . . . . . . . . . . . . . . . . . 953
. . . . . . . . . . . . . . . . . . . . . . . . 954
BEARINGS - CRANKSHAFT MAIN
STANDARD PROCEDURE - CRANKSHAFT
. . . . . . . . . . . . . . 956
. . . . . . . . . . . . . . . . . . . . . . . . . . 957
SEAL - CRANKSHAFT OIL - FRONT
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 957
. . . . . . . . . . . . . . . . . . . . . . . . 958
SEAL - CRANKSHAFT OIL - REAR
DIAGNOSIS AND TESTING - REAR SEAL
. . . . . . . . . . . . . . . . . . . . . . . . 958
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ENGINE - 4.7L SERVICE INFORMATION
9 - 883
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 959
. . . . . . . . . . . . . . . . . . . . . . . . 960
FLEX PLATE
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 961
. . . . . . . . . . . . . . . . . . . . . . . . 961
ROD - PISTON & CONNECTING
. . . . . . . . . . . . . . . . . . . . . . . . 962
STANDARD PROCEDURE - PISTON FITTING
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 963
. . . . . . . . . . . . . . . . . . . . . . . . . . . 963
. . . . . . . . . . . . . . . . . . . . . . . . . . 963
. . . . . . . . . . . . . . . . . . . . . . . . 964
RINGS - PISTON
STANDARD PROCEDURE - PISTON RING
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 965
DAMPER - CRANKSHAFT
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 968
. . . . . . . . . . . . . . . . . . . . . . . . 969
COVER - STRUCTURAL
. . . . . . . . . . . . . . . . . . . . . . . . 970
. . . . . . . . . . . . . . . . . . . . . . . . . . 970
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 970
. . . . . . . . . . . . . . . . . . . . . . . . 970
MOUNT - FRONT
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 971
. . . . . . . . . . . . . . . . . . . . . . . . 972
MOUNT - REAR
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 973
. . . . . . . . . . . . . . . . . . . . . . . . 973
LUBRICATION
. . . . . . . . . . . . . . . . . . . . . . . . 974
. . . . . . . . . . . . . . . . . . . . . . . . . . 974
DIAGNOSIS AND TESTING - ENGINE OIL
PRESSURE . . . . . . . . . . . . . . . . . . . . . . . . . 976
DIAGNOSIS AND TESTING - ENGINE OIL
LEAK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 976
OIL
. . . . . . . . . . . . . . . . . 977
FILTER - ENGINE OIL
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 979
. . . . . . . . . . . . . . . . . . . . . . . . 979
PAN-ENGINE OIL
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 980
. . . . . . . . . . . . . . . . . . . . . . . . 981
SWITCH - OIL PRESSURE
. . . . . . . . . . . . . . . . . . . . . . . . 982
. . . . . . . . . . . . . . . . . . . . . . . . . . 982
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 983
. . . . . . . . . . . . . . . . . . . . . . . . 983
PUMP - ENGINE OIL
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 983
. . . . . . . . . . . . . . . . . . . . . . . . 983
. . . . . . . . . . . . . . . . . . . . . . . . . . . 983
. . . . . . . . . . . . . . . . . . . . . . . . . . 984
. . . . . . . . . . . . . . . . . . . . . . . . . . . 986
. . . . . . . . . . . . . . . . . . . . . . . . 986
MANIFOLD - INTAKE
. . . . . . . . . . . . . . . . . . . . . . . . 986
DIAGNOSIS AND TESTING - INTAKE
. . . . . . . . . . . . . . . . . 986
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 987
. . . . . . . . . . . . . . . . . . . . . . . . . . . 988
. . . . . . . . . . . . . . . . . . . . . . . . . . 988
. . . . . . . . . . . . . . . . . . . . . . . . 988
MANIFOLD - EXHAUST
. . . . . . . . . . . . . . . . . . . . . . . . 989
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 989
. . . . . . . . . . . . . . . . . . . . . . . . . . . 991
. . . . . . . . . . . . . . . . . . . . . . . . . . 991
. . . . . . . . . . . . . . . . . . . . . . . . 991
VALVE TIMING
DESCRIPTION - TIMING DRIVE SYSTEM
OPERATION - TIMING DRIVE SYSTEM
STANDARD PROCEDURE - MEASURING
TIMING CHAIN WEAR . . . . . . . . . . . . . . . . . 994
STANDARD PROCEDURE - ENGINE TIMING
- VERIFICATION . . . . . . . . . . . . . . . . . . . . . . 994
COVER(S)-TIMING BELT / CHAIN
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 999
. . . . . . . . . . . . . . . . . . . . . . . 1000
TIMING CHAIN & SPROCKETS
. . . . . . . . . . . . . . . . . . . . . . . . . . . 1001
. . . . . . . . . . . . . . . . . . . . . . . . . 1004
. . . . . . . . . . . . . . . . . . . . . . . 1005
SHAFT-IDLER
. . . . . . . . . . . . . . . . . . . . . . . . . . . 1008
. . . . . . . . . . . . . . . . . . . . . . . 1008
ENGINE - 4.7L SERVICE INFORMATION
DIAGNOSIS AND TESTING
DIAGNOSIS AND TESTING - ENGINE DIAGNOSIS - INTRODUCTION
Engine diagnosis is helpful in determining the causes of malfunctions not detected and remedied by routine main-
tenance.
These malfunctions may be classified as either performance (e.g., engine idles rough and stalls) or mechanical
(e.g., a strange noise).
(Refer to 9 - ENGINE - DIAGNOSIS AND TESTING) - PERFORMANCE and (Refer to 9 - ENGINE - DIAGNOSIS
AND TESTING)—MECHANICAL for possible causes and corrections of malfunctions. (Refer to 14 - FUEL SYSTEM/
9 - 884
ENGINE - 4.7L SERVICE INFORMATION
ND
FUEL DELIVERY - DIAGNOSIS AND TESTING) and (Refer to 14 - FUEL SYSTEM/FUEL INJECTION - DIAGNO-
SIS AND TESTING) for the fuel system diagnosis.
Additional tests and diagnostic procedures may be necessary for specific engine malfunctions that can not be iso-
lated with the Service Diagnosis charts. Information concerning additional tests and diagnosis is provided within the
following diagnosis:
•
Cylinder Compression Pressure Test (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING).
•
Cylinder Combustion Pressure Leakage Test (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING).
•
Engine Cylinder Head Gasket Failure Diagnosis (Refer to 9 - ENGINE/CYLINDER HEAD - DIAGNOSIS AND
TESTING).
•
Intake Manifold Leakage Diagnosis (Refer to 9 - ENGINE/MANIFOLDS/INTAKE MANIFOLD - DIAGNOSIS
AND TESTING).
DIAGNOSIS AND TESTING - ENGINE DIAGNOSIS - PERFORMANCE
CONDITION
POSSIBLE CAUSE
CORRECTION
ENGINE WILL NOT START
1. Weak battery
1. Charge or replace as necessary.
2. Corroded or loose battery
connections.
2. Clean and tighten battery
connections. Apply a coat of light
mineral grease to the terminals.
3. Faulty starter.
3. (Refer to 8 - ELECTRICAL/
STARTING - DIAGNOSIS AND
TESTING).
4. Faulty coil or control unit.
4. (Refer to 8 - ELECTRICAL/
IGNITION CONTROL/IGNITION
COIL - REMOVAL).
5. Incorrect spark plug gap.
5. (Refer to 8 - ELECTRICAL/
IGNITION CONTROL/SPARK PLUG
- CLEANING).
6. Dirt or water in fuel system.
6. Clean system and replace fuel
filter.
7. Faulty fuel pump, relay or wiring.
7. Repair or replace as necessary.
ENGINE STALLS OR ROUGH IDLE
1. Idle speed set to low.
1. (Refer to 14 - FUEL SYSTEM/
FUEL INJECTION/IDLE AIR
CONTROL MOTOR - REMOVAL).
2. Idle mixture too lean or too rich.
2. Refer to Powertrain Diagnosis
Information.
3. Vacuum leak.
3. Inspect intake manifold and
vacuum hoses, repair or replace as
necessary.
4. Faulty coil.
4. (Refer to 8 - ELECTRICAL/
IGNITION CONTROL/IGNITION
COIL - REMOVAL).
5. Incorrect engine timing.
5. (Refer to 9 - ENGINE/VALVE
TIMING - STANDARD
PROCEDURE).
ND
ENGINE - 4.7L SERVICE INFORMATION
9 - 885
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