Dodge Durango (HB). Manual — part 1080
ENGINE - 5.7L SERVICE INFORMATION
TABLE OF CONTENTS
page
page
ENGINE - 5.7L SERVICE INFORMATION
. . . . . . . . . . . . . . . . . . . . . . . 1321
DIAGNOSIS AND TESTING - ENGINE
DIAGNOSIS - INTRODUCTION . . . . . . . . . . 1321
DIAGNOSIS AND TESTING - ENGINE
DIAGNOSIS - PERFORMANCE . . . . . . . . . 1322
DIAGNOSIS AND TESTING - ENGINE
DIAGNOSIS - MECHANICAL . . . . . . . . . . . 1323
DIAGNOSIS AND TESTING - CYLINDER
COMPRESSION PRESSURE . . . . . . . . . . . 1324
DIAGNOSIS AND TESTING - CYLINDER
COMBUSTION PRESSURE LEAKAGE . . . . 1324
DIAGNOSIS AND TESTING - ENGINE
DIAGNOSIS - LUBRICATION . . . . . . . . . . . 1325
DIAGNOSIS AND TESTING - ENGINE
DIAGNOSIS - MECHANICAL . . . . . . . . . . . 1326
DAMAGED OR WORN THREADS . . . . . . . 1328
STANDARD PROCEDURE - HYDROSTATIC
LOCK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1328
. . . . . . . . . . . . . . . . . . . . . . . . . . . 1329
. . . . . . . . . . . . . . . . . . . . . . . 1333
. . . . . . . . . . . . . . . . . . . . . . . 1337
. . . . . . . . . . . . . . . . . . . . . . . . . . 1343
. . . . . . . . . . . . . . . . . . . . . . . 1345
AIR INTAKE SYSTEM
. . . . . . . . . . . . . . . . . . . . . . . . . . . 1348
. . . . . . . . . . . . . . . . . . . . . . . 1349
CYLINDER HEAD
DIAGNOSIS AND TESTING - CYLINDER HEAD
. . . . . . . . . . . . . . . . . . . 1350
. . . . . . . . . . . . . . . . . . . . . . . . . . . 1351
. . . . . . . . . . . . . . . . . . . . . . . . . . 1354
. . . . . . . . . . . . . . . . . . . . . . . . . 1354
. . . . . . . . . . . . . . . . . . . . . . . 1355
COVER-CYLINDER HEAD
. . . . . . . . . . . . . . . . . . . . . . . . . . . 1360
. . . . . . . . . . . . . . . . . . . . . . . 1363
VALVES & SEATS - INTAKE/EXHAUST
. . . . . . . . . . . . . . . . . . . . . . 1365
. . . . . . . . . . . . . . . . . . . . . . . . . . . 1366
. . . . . . . . . . . . . . . . . . . . . . . 1366
ROCKER ARM
. . . . . . . . . . . . . . . . . . . . . . . . . . . 1367
. . . . . . . . . . . . . . . . . . . . . . . 1368
SEALS-VALVE GUIDE
. . . . . . . . . . . . . . . . . . . . . . . 1370
SPRINGS-VALVE
. . . . . . . . . . . . . . . . . . . . . . . . . . . 1371
. . . . . . . . . . . . . . . . . . . . . . . 1377
ENGINE BLOCK
. . . . . . . . . . . . . . . . . . . . . . . . . . 1381
. . . . . . . . . . . . . . . . . . . . . . . . . 1382
CAMSHAFT
HOLE PLUG . . . . . . . . . . . . . . . . . . . . . . . . 1382
. . . . . . . . . . . . . . 1383
. . . . . . . . . . . . . . . . . . . . . . . . . 1387
INSTALLATION - CAMSHAFT CORE HOLE
PLUG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1388
CRANKSHAFT
. . . . . . . . . . . . . . . . . . . . . . . . . . . 1395
. . . . . . . . . . . . . . . . . . . . . . . 1399
BEARINGS-CRANKSHAFT MAIN
STANDARD PROCEDURE - CRANKSHAFT
. . . . . . . . . . . . . 1404
. . . . . . . . . . . . . . . . . . . . . . . . . 1404
SEAL-CRANKSHAFT OIL-FRONT
. . . . . . . . . . . . . . . . . . . . . . . . . . . 1405
. . . . . . . . . . . . . . . . . . . . . . . 1406
SEAL-CRANKSHAFT OIL-REAR
DIAGNOSIS AND TESTING - REAR SEAL
. . . . . . . . . . . . . . . . . . . . . . . 1406
. . . . . . . . . . . . . . . . . . . . . . . . . . . 1407
. . . . . . . . . . . . . . . . . . . . . . . 1408
RETAINER-CRANK REAR OIL - SEAL
. . . . . . . . . . . . . . . . . . . . . . . . . . . 1408
. . . . . . . . . . . . . . . . . . . . . . . 1409
FLEX PLATE
. . . . . . . . . . . . . . . . . . . . . . . . . . . 1410
. . . . . . . . . . . . . . . . . . . . . . . 1410
TAPPETS-HYDRAULIC ROLLER
DIAGNOSIS AND TESTING - HYDRAULIC
. . . . . . . . . . . . . . . . . . . . . . . . . . 1411
. . . . . . . . . . . . . . . . . . . . . . . . . . . 1411
. . . . . . . . . . . . . . . . . . . . . . . 1413
PISTON & CONNECTING ROD
. . . . . . . . . . . . . . . . . . . . . . . 1413
. . . . . . . . . . . . . . . . . . . . . . . . . . . 1414
HB
ENGINE - 5.7L SERVICE INFORMATION
9 - 1319
. . . . . . . . . . . . . . . . . . . . . . . . . . . 1414
. . . . . . . . . . . . . . . . . . . . . . . . . . 1415
. . . . . . . . . . . . . . . . . . . . . . . . . 1416
. . . . . . . . . . . . . . . . . . . . . . . 1416
RINGS-PISTON
STANDARD PROCEDURE - PISTON RING
. . . . . . . . . . . . . . . . . . . . . . . . . . . 1417
DAMPER-CRANKSHAFT
. . . . . . . . . . . . . . . . . . . . . . . . . . . 1420
. . . . . . . . . . . . . . . . . . . . . . . 1421
COVER-STRUCTURAL
. . . . . . . . . . . . . . . . . . . . . . . 1422
. . . . . . . . . . . . . . . . . . . . . . . . . 1422
. . . . . . . . . . . . . . . . . . . . . . . . . . . 1422
. . . . . . . . . . . . . . . . . . . . . . . 1422
ENGINE MOUNTING-FRONT
. . . . . . . . . . . . . . . . . . . . . . . . . . . 1423
. . . . . . . . . . . . . . . . . . . . . . . 1423
MOUNTING-ENGINE REAR
. . . . . . . . . . . . . . . . . . . . . . . . . . . 1424
. . . . . . . . . . . . . . . . . . . . . . . 1424
LUBRICATION
. . . . . . . . . . . . . . . . . . . . . . . 1425
DIAGNOSIS AND TESTING - CHECKING
ENGINE OIL PRESSURE . . . . . . . . . . . . . . 1425
DIAGNOSIS AND TESTING - ENGINE OIL
LEAK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1426
OIL
STANDARD PROCEDURE - ENGINE OIL
. . . . . . . . . . . . . . . . . . . . . . . . . . 1427
FILTER-ENGINE OIL
. . . . . . . . . . . . . . . . . . . . . . . . . . . 1427
. . . . . . . . . . . . . . . . . . . . . . . 1428
PAN-ENGINE OIL
. . . . . . . . . . . . . . . . . . . . . . . . . . . 1428
. . . . . . . . . . . . . . . . . . . . . . . 1431
PUMP-ENGINE OIL
. . . . . . . . . . . . . . . . . . . . . . . . . . . 1434
. . . . . . . . . . . . . . . . . . . . . . . . . . 1434
. . . . . . . . . . . . . . . . . . . . . . . . . 1435
. . . . . . . . . . . . . . . . . . . . . . . 1436
INTAKE MANIFOLD
. . . . . . . . . . . . . . . . . . . . . . . 1437
DIAGNOSIS AND TESTING - INTAKE
. . . . . . . . . . . . . . . . 1437
. . . . . . . . . . . . . . . . . . . . . . . . . . . 1437
. . . . . . . . . . . . . . . . . . . . . . . . . . 1437
. . . . . . . . . . . . . . . . . . . . . . . . . 1437
. . . . . . . . . . . . . . . . . . . . . . . 1438
MANIFOLD - EXHAUST
. . . . . . . . . . . . . . . . . . . . . . . 1438
. . . . . . . . . . . . . . . . . . . . . . . . . 1438
. . . . . . . . . . . . . . . . . . . . . . . . . . . 1438
. . . . . . . . . . . . . . . . . . . . . . . . . . 1438
. . . . . . . . . . . . . . . . . . . . . . . . . 1439
. . . . . . . . . . . . . . . . . . . . . . . 1439
COVER-TIMING
. . . . . . . . . . . . . . . . . . . . . . . . . . . 1440
. . . . . . . . . . . . . . . . . . . . . . . 1442
TIMING CHAIN & SPROCKETS
. . . . . . . . . . . . . . . . . . . . . . . . . . . 1443
. . . . . . . . . . . . . . . . . . . . . . . 1446
TENSIONER - TIMING CHAIN
. . . . . . . . . . . . . . . . . . . . . . . 1449
. . . . . . . . . . . . . . . . . . . . . . . . . 1449
9 - 1320
ENGINE - 5.7L SERVICE INFORMATION
HB
ENGINE - 5.7L SERVICE INFORMATION
DESCRIPTION
The 5.7L engine (345 CID) eight-cylinder engine is a 90° V-Type lightweight, deep skirt cast iron block, aluminum
heads, single cam, overhead valve engine with hydraulic roller tappets. The heads incorporate splayed valves with
a hemispherical style combustion chamber and dual spark plugs. The cylinders are numbered from front to rear; 1,
3, 5, 7 on the left bank and 2, 4, 6, 8 on the right bank. The firing order is 1-8-4-3-6-5-7-2.
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.
HB
ENGINE - 5.7L SERVICE INFORMATION
9 - 1321
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/
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. Incorrect spark plug gap.
4. (Refer to 8 - ELECTRICAL/
IGNITION CONTROL/SPARK PLUG
- CLEANING).
5. Dirt or water in fuel system.
5. Clean system and replace fuel
filter.
6. Faulty fuel pump, relay or wiring.
6. (Refer to 9 - ENGINE -
DIAGNOSIS AND TESTING)
ENGINE STALLS OR ROUGH IDLE
1. Idle speed set to low.
1. (Refer to 9 - ENGINE -
DIAGNOSIS AND TESTING)
2. Vacuum leak.
2. Inspect intake manifold and
vacuum hoses, repair or replace as
necessary.
3. Incorrect engine timing.
3. (Refer to 9 - ENGINE/VALVE
TIMING - STANDARD
PROCEDURE).
9 - 1322
ENGINE - 5.7L SERVICE INFORMATION
HB
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