Dodge Ram Truck 1500-2500-3500. Manual — part 1309
NOTE: It will be necessary to slightly rotate camshafts for sprocket installation.
11. Align left camshaft sprocket “L” dot to plated link on chain.
12. Align right camshaft sprocket “R” dot to plated link on chain.
CAUTION: Remove excess oil from the camshaft sprocket bolt. Failure to do so can result in over-torque of
bolt resulting in bolt failure.
13. Remove Special Tool 8429, then attach both sprockets to camshafts. Remove excess oil from bolts, then Install
sprocket bolts, but do not tighten at this time.
14. Verify that all plated links are aligned with the marks on all sprockets and the “V6” marks on camshaft sprockets
are at the 12 o’clock position.
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ENGINE - 3.7L - SERVICE INFORMATION
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CAUTION: Ensure the plate between the left sec-
ondary chain tensioner and block is correctly
installed.
15. Install both secondary chain tensioners. Tighten
bolts to 28 N·m (250 in. lbs.).
NOTE: Left and right secondary chain tensioners
are not common.
16. Remove all 3 locking pins from tensioners.
CAUTION: After pulling locking pins out of each
tensioner, DO NOT manually extend the tension-
er(s) ratchet. Doing so will over tension the
chains, resulting in noise and/or high timing chain
loads.
17. Using Special Tool 6958, Spanner with Adaptor
Pins 8346, (4) tighten left and right. camshaft
sprocket bolts to 122 N·m (90 ft. lbs.).
18. Rotate engine two full revolutions. Verify timing marks are at the follow locations:
•
primary chain idler sprocket dot is at 12 o’clock
•
primary chain crankshaft sprocket dot is at 6 o’clock
•
secondary chain camshaft sprockets “V6” marks are at 12 o’clock
•
counterbalancer shaft drive gear dot is aligned to the idler sprocket gear dot
19. Lubricate all three chains with engine oil.
20. 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 must be
replaced.
21. Install timing chain cover and crankshaft damper.
Refer to procedures.
22. Install cylinder head covers (Refer to 9 - ENGINE/
CYLINDER HEAD/CYLINDER HEAD COVER(S) -
INSTALLATION).
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ENGINE - 3.7L - SERVICE INFORMATION
9 - 2159
NOTE: Before installing threaded plug in right cyl-
inder head, the plug must be coated with sealant
to prevent leaks.
23. Coat the large threaded access plug with Mopar
T
Thread Sealant with Teflon, then install into the
right cylinder head (1) and tighten to 81 N·m (60
ft. lbs.).
24. Install the oil fill housing.
25. Install access plug in left cylinder head (2).
26. Install power steering pump (Refer to 19 -
STEERING/PUMP - INSTALLATION).
27. Fill cooling system (Refer to 7 - COOLING -
STANDARD PROCEDURE).
28. Connect negative cable to battery.
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ENGINE - 3.7L - SERVICE INFORMATION
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ENGINE - 4.7L - SERVICE INFORMATION
TABLE OF CONTENTS
page
page
ENGINE - 4.7L - SERVICE INFORMATION
DIAGNOSIS AND TESTING - ENGINE
DIAGNOSIS - PERFORMANCE . . . . . . . . . 2163
DIAGNOSIS AND TESTING - ENGINE
DIAGNOSIS - MECHANICAL . . . . . . . . . . . 2165
DIAGNOSIS AND TESTING - CYLINDER
COMPRESSION PRESSURE . . . . . . . . . . . 2166
DIAGNOSIS AND TESTING - CYLINDER
COMBUSTION PRESSURE LEAKAGE . . . . 2166
DIAGNOSIS AND TESTING - ENGINE
DIAGNOSIS - INTRODUCTION . . . . . . . . . . 2167
DAMAGED OR WORN THREADS . . . . . . . 2167
PLACE GASKETS AND SEALERS . . . . . . . 2167
. . . . . . . . . . . . . . . . . . . . . . . . . . . 2168
. . . . . . . . . . . . . . . . . . . . . . . 2174
. . . . . . . . . . . . . . . . . . . . . . . . . . 2184
. . . . . . . . . . . . . . . . . . . . . . . 2186
ELEMENT - AIR CLEANER
. . . . . . . . . . . . . . . . . . . . . . . . . . . 2190
. . . . . . . . . . . . . . . . . . . . . . . 2191
CYLINDER HEAD
. . . . . . . . . . . . . . . . . . . . . . . . . . 2198
. . . . . . . . . . . . . . . . . . . . . . . . . 2198
INSTALLATION - LEFT CYLINDER HEAD
INSTALLATION - RIGHT CYLINDER HEAD
CAMSHAFT - LEFT
. . . . . . . . . . . . . . . . . . . . . . . 2203
. . . . . . . . . . . . . . . . . . . . . . . . . . . 2204
. . . . . . . . . . . . . . . . . . . . . . . 2206
CAMSHAFT - RIGHT
. . . . . . . . . . . . . . . . . . . . . . . 2209
. . . . . . . . . . . . . . . . . . . . . . . . . . . 2209
. . . . . . . . . . . . . . . . . . . . . . . 2212
COVER - CYLINDER HEAD
. . . . . . . . . . . . . . . . . . . . . . . 2215
. . . . . . . . . . . . . . 2215
. . . . . . . . . . . . . . . 2216
. . . . . . . . . . . . . . . . . . . . . . . . . . 2216
VALVES & SEATS - INTAKE/EXHAUST
. . . . . . . . . . . . . . . . . . . . . . . 2217
. . . . . . . . . . . . . . . . . . . . . . . . . . . 2217
. . . . . . . . . . . . . . . . . . . . . . . 2218
ROCKER ARM - VALVE
. . . . . . . . . . . . . . . . . . . . . . . 2219
DIAGNOSIS AND TESTING - HYDRAULIC
. . . . . . . . . . . . . . . . . . . . 2219
. . . . . . . . . . . . . . . . . . . . . . . . . . . 2220
. . . . . . . . . . . . . . . . . . . . . . . 2220
SPRINGS-VALVE
. . . . . . . . . . . . . . . . . . . . . . . 2220
. . . . . . . . . . . . . . . . . . . . . . . . . . . 2221
. . . . . . . . . . . . . . . . . . . . . . . 2221
SEALS-VALVE GUIDE
. . . . . . . . . . . . . . . . . . . . . . . 2222
ENGINE BLOCK
. . . . . . . . . . . . . . . . . . . . . . . 2222
STANDARD PROCEDURE - CYLINDER BORE
. . . . . . . . . . . . . . . . . . . . . . . . . . . 2222
. . . . . . . . . . . . . . . . . . . . . . . . . . 2222
. . . . . . . . . . . . . . . . . . . . . . . . . 2223
BEARINGS - CONNECTING ROD
STANDARD PROCEDURE - CONNECTING
. . . . . . . . . . . . . . 2223
PLUGS - CORE
. . . . . . . . . . . . . . . . . . . . . . . . . . . 2226
. . . . . . . . . . . . . . . . . . . . . . . 2226
CRANKSHAFT
. . . . . . . . . . . . . . . . . . . . . . . 2227
. . . . . . . . . . . . . . . . . . . . . . . . . . . 2227
. . . . . . . . . . . . . . . . . . . . . . . . . 2227
. . . . . . . . . . . . . . . . . . . . . . . 2228
BEARINGS - CRANKSHAFT MAIN
STANDARD PROCEDURE - CRANKSHAFT
. . . . . . . . . . . . . 2230
. . . . . . . . . . . . . . . . . . . . . . . . . 2231
SEAL - CRANKSHAFT OIL - FRONT
. . . . . . . . . . . . . . . . . . . . . . . . . . . 2232
. . . . . . . . . . . . . . . . . . . . . . . 2233
SEAL - CRANKSHAFT OIL - REAR
DIAGNOSIS AND TESTING - REAR SEAL
. . . . . . . . . . . . . . . . . . . . . . . 2233
. . . . . . . . . . . . . . . . . . . . . . . . . . . 2234
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ENGINE - 4.7L - SERVICE INFORMATION
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