Dodge Dakota (R1). Manual — part 505
(3) Install right side chain tensioner arm. Apply
Mopar
t Lock N, Seal to torxt bolt, tighten bolt to 17
N·m (150 in. lbs.).
NOTE: The silver bolts retain the guides to the cyl-
inder heads and the black bolts retain the guides to
the engine block.
(4) Install the left side chain guide. Tighten the
bolts to 28 N·m (250 in. lbs.).
CAUTION: Overtightening the tensioner arm torx
T
bolt can cause severe damage to the cylinder head.
Tighten torx
T
bolt to specified torque only.
(5) Install left side chain tensioner arm. Apply
Mopar
t Lock N, Seal to torxt bolt, tighten bolt to 17
N·m (150 in. lbs.).
(6) Install the right side chain guide. Tighten the
bolts to 28 N·m (250 in. lbs.).
(7) Install both secondary chains onto the idler
sprocket. Align two plated links on the secondary
chains to be visible through the two lower openings
on the idler sprocket (4 o’clock and 8 o’clock). Once
the secondary timing chains are installed, position
special tool 8515 to hold chains in place for installa-
tion (Fig. 142).
(8) Align primary chain double plated links with
the timing mark at 12 o’clock on the idler sprocket.
Align the primary chain single plated link with the
timing mark at 6 o’clock on the crankshaft sprocket
(Fig. 140).
Fig. 140 Timing Chain System
1 - RIGHT CAMSHAFT SPROCKET AND SECONDARY CHAIN
2 - SECONDARY TIMING CHAIN TENSIONER (LEFT AND RIGHT
SIDE NOT COMMON)
3 - SECONDARY TENSIONER ARM
4 - LEFT CAMSHAFT SPROCKET AND SECONDARY CHAIN
5 - CHAIN GUIDE
6 - TWO PLATED LINKS ON RIGHT CAMSHAFT CHAIN
7 - PRIMARY CHAIN
8 - IDLER SPROCKET
9 - CRANKSHAFT SPROCKET
10 - PRIMARY CHAIN TENSIONER
11 - TWO PLATED LINKS ON LEFT CAMSHAFT CHAIN
12 - SECONDARY TENSIONER ARM
9 - 208
ENGINE 4.7L
AN
TIMING BELT/CHAIN AND SPROCKETS (Continued)
(9) Lubricate idler shaft and bushings with clean
engine oil.
(10) Install all chains, crankshaft sprocket, and
idler sprocket as an assembly (Fig. 143). After guid-
ing both secondary chains through the block and cyl-
inder head openings, affix chains with a elastic strap
or the equivalent, This will maintain tension on
chains to aid in installation.
NOTE: It will be necessary to slightly rotate cam-
shafts 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 8515, 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 “V8” marks on
camshaft sprockets are at the 12 o’clock position (Fig.
140).
Fig. 141 Resetting Secondary Chain Tensioners
1 - VISE
2 - INSERT LOCK PIN
3 - RATCHET PAWL
4 - RATCHET
5 - PISTON
Fig. 142 Installing Secondary Timing Chains on
Idler Sprocket
1 - LOCK ARM
2 - RIGHT CAMSHAFT CHAIN
3 - SECONDARY CHAINS RETAINING PINS (4)
4 - IDLER SPROCKET
5 - LEFT CAMSHAFT CHAIN
6 - SPECIAL TOOL 8515
Fig. 143 Installing Idler Gear, Primary and
Secondary Timing Chains
1 - SPECIAL TOOL 8515
2 - PRIMARY CHAIN IDLER SPROCKET
3 - CRANKSHAFT SPROCKET
AN
ENGINE 4.7L
9 - 209
TIMING BELT/CHAIN AND SPROCKETS (Continued)
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) Before installing idler sprocket bolt, lubricate
washer with oil, and tighten idler sprocket assembly
retaining bolt to 34 N·m (25 ft. lbs.).
(17) Remove all locking pins (3) from tensioners.
CAUTION: After pulling locking pins out of each
tensioner, DO NOT manually extend the tensioner(s)
ratchet. Doing so will over tension the chains,
resulting in noise and/or high timing chain loads.
(18) Using Special Tool 6958, Spanner with Adaptor
Pins 8346, tighten left (Fig. 144) and right (Fig. 145)
camshaft sprocket bolts to 122 N·m (90 ft. lbs.).
(19) Rotate engine two full revolutions. Verify tim-
ing marks are at the follow locations:
• primary chain idler sprocket dot is at 12 o’clock
(Fig. 140)
• primary chain crankshaft sprocket dot is at 6
o’clock (Fig. 140)
• secondary chain camshaft sprockets “V8” marks
are at 12 o’clock (Fig. 140)
(20) Lubricate all three chains with engine oil.
Fig. 144 Tightening Left Side Camshaft Sprocket
Bolt
1 - TORQUE WRENCH
2 - CAMSHAFT SPROCKET
3 - LEFT CYLINDER HEAD
4 - SPECIAL TOOL 6958 SPANNER WITH ADAPTER PINS 8346
Fig. 145 Tightening Right Side Camshaft Sprocket
Bolt
1 - TORQUE WRENCH
2 - SPECIAL TOOL 6958 WITH ADAPTER PINS 8346
3 - LEFT CAMSHAFT SPROCKET
4 - RIGHT CAMSHAFT SPROCKET
9 - 210
ENGINE 4.7L
AN
TIMING BELT/CHAIN AND SPROCKETS (Continued)
(21) After installing all chains, it is recommended
that the idler gear end play be checked (Fig. 146).
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.
(22) Install timing chain cover (Refer to 9 -
ENGINE/VALVE TIMING/TIMING BELT / CHAIN
COVER(S)
-
INSTALLATION)
and
crankshaft
damper (Refer to 9 - ENGINE/ENGINE BLOCK/VI-
BRATION 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 cylin-
der head, the plug must be coated with sealant to
prevent leaks.
(24) Coat the large threaded access plug with
Mopar
t Thread Sealant with Teflon, then install
into the right cylinder head and tighten to 81 N·m
(60 ft. lbs.) (Fig. 135).
(25) Install the oil fill housing.
(26) Install access plug in left cylinder head (Fig.
135).
(27) Install power steering pump (Refer to 19 -
STEERING/PUMP - INSTALLATION).
(28) Install radiator fan shroud.
(29) Fill cooling system (Refer to 7 - COOLING -
STANDARD PROCEDURE).
(30) Connect negative cable to battery.
Fig. 146 Measuring Idler Gear End Play
1 - IDLER SPROCKET ASSEMBLY
2 - DIAL INDICATOR
AN
ENGINE 4.7L
9 - 211
TIMING BELT/CHAIN AND SPROCKETS (Continued)
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