QuestionQUESTION: could you please help me with the timing chain setting - is it TDC? and are there more than one setting??
ANSWER: buy a manual for this what I have will be text only and if u are not good at messing with the 4.7 engine u will need more then what I have.
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QUESTION: text only would be great -- thanks
AnswerTIMING CHAIN AND SPROCKETS
REMOVAL
Disconnect negative cable from battery.
Drain cooling system. Refer to Group 7, Cooling System for procedures.
Remove right and left cylinder head covers. Refer to procedure in this section.
Remove radiator fan shroud. Refer to Group 7, Cooling System for procedure.
Rotate engine until timing mark on crankshaft damper aligns with TDC mark on timing chain cover Engine Top Dead Center (TDC) Indicator Mark (#1 cylinder exhaust stroke) and the camshaft sprocket "V8" marks are at the 12 o'clock position Camshaft Sprocket V8 Marks
Remove power steering pump. Refer to Group 19, Steering for procedures.
Remove access plugs (2) from left and right cylinder heads for access to chain guide fasteners Cylinder Head Access Plug Location
Remove the oil fill housing to gain access to the right side tensioner arm fastener.
Remove crankshaft damper and timing chain cover. Refer to procedures in this section.
Collapse and pin primary chain tensioner Collapsing And Pinning Primary Chain Tensioner
CAUTION: Plate behind left secondary chain tensioner could fall into oil pan. Therefore, cover pan opening.
Remove secondary chain tensioners.
Remove camshaft position sensor from right cylinder head Camshaft Position Sensor - Removal
CAUTION: Care should be taken not to damage camshaft target wheel. Do not hold target wheel while loosening or tightening camshaft sprocket. Do not place the target wheel near a magnetic source of any kind. A damaged or magnetized target wheel could cause a vehicle no start condition.
CAUTION: Do not forcefully rotate the camshafts or crankshaft independently of each other. Damaging intake valve to piston contact will occur. Ensure negative battery cable is disconnected to guard against accidental starter engagement.
Remove left and right camshaft sprocket bolts.
While holding the left camshaft steel tube with adjustable pliers, Camshaft Rotation - Left Side remove the left camshaft sprocket. Slowly rotate the camshaft approximately 15 degrees clockwise to a neutral position.
While holding the right camshaft steel tube with adjustable pliers, Camshaft Rotation - Right Side remove the right camshaft sprocket. Slowly rotate the camshaft approximately 45 degrees counterclockwise to a neutral position.
Remove idler sprocket assembly bolt.
Slide the idler sprocket assembly and crank sprocket forward simultaneously to remove the primary and secondary chains.
Remove both pivoting tensioner arms and chain guides.
Remove chain tensioner.
INSPECTION OF COMPONENTS
Inspect the following components:
Sprockets for excessive tooth wear. Some tooth markings are normal and not a cause for sprocket replacement.
Idler sprocket assembly bushing and shaft for excessive wear.
Idler sprocket assembly spline joint. The joint should be tight with no backlash or axial movement.
Chain guides and tensioner arms. Replace these parts if grooving in plastic face is more than 1 mm (0.039 in.) deep. If plastic face is severely grooved or melted, the tensioner lube jet may be clogged. The tensioner should be replaced.
secondary chain tensioner piston and ratcheting device. Inspect for evidence of heavy contact between tensioner piston and tensioner arm. If this condition exist the tensioner tensioner arm and chain should be replaced.
Primary chain tensioner plastic faces. Replace as required.
INSTALLATION
Using a vise, lightly compress the secondary chain tensioner piston until the piston step is flush with the tensioner body. Using a pin or suitable tool, release ratchet pawl by pulling pawl back against spring force through access hole on side of tensioner. While continuing to hold pawl back, Push ratchet device to approximately 2 mm from the tensioner body. Install Special Tool 8514 lock pin into hole on front of tensioner. Slowly open vise to transfer piston spring force to lock pin Resetting Secondary Chain Tensioners
Position primary chain tensioner over oil pump and insert bolts into lower two holes on tensioner bracket. Tighten bolts to 28 N·m (250 in. lbs.)
CAUTION: Overtightening the tensioner arm torx® bolt can cause severe damage to the cylinder head. Tighten torx® bolt to specified torque only.
Install right side chain tensioner arm. Apply Mopar® Lock N, Seal to torx® bolt, tighten bolt to 17 N·m (150 in. lbs.)
NOTE: The silver bolts retain the guides to the cylinder heads and the black bolts retain the guides to the engine block.
Install the left side chain guide. Tighten the bolts to 28 N·m (250 in. lbs.)
CAUTION: Overtightening the tensioner arm torx® bolt can cause severe damage to the cylinder head. Tighten torx® bolt to specified torque only.
Install left side chain tensioner arm. Apply Mopar® Lock N, Seal to torx® bolt, tighten bolt to 17 N·m (150 in. lbs.)
Install the right side chain guide. Tighten the bolts to 28 N·m (250 in. lbs.)
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 installation Installing Secondary Timing Chains on Idler Sprocket
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 Timing Chain System
Lubricate idler shaft and bushings with clean engine oil.
Install all chains, crankshaft sprocket, and idler sprocket as an assembly Installing Idler Gear, Primary and Secondary Timing Chains After guiding both secondary chains through the block and cylinder 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 camshafts for sprocket installation.
Align left camshaft sprocket "L" dot to plated link on chain.
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.
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.
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 Timing Chain System
CAUTION: Ensure the plate between the left secondary chain tensioner and block is correctly installed.
Install both secondary chain tensioners. Tighten bolts to 28 N·m (250 in. lbs.)
NOTE: Left and right secondary chain tensioners are not common.
Before installing idler sprocket bolt, lubricate washer with oil, and tighten idler sprocket assembly retaining bolt to 34 N·m (25 ft. lbs.)
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.
Using Special Tool 6958, Spanner with Adaptor Pins 8346, tighten left Tightening Left Side Camshaft Sprocket Bolt and right Tightening Right Side Camshaft Sprocket Bolt camshaft sprocket bolts to 122 N·m (90 ft. lbs.)
Rotate engine two full revolutions. Verify timing marks are at the follow locations:
primary chain idler sprocket dot is at 12 o'clock Timing Chain System
primary chain crankshaft sprocket dot is at 6 o'clock Timing Chain System
secondary chain camshaft sprockets "V8" marks are at 12 o'clock Timing Chain System
Lubricate all three chains with engine oil.
After installing all chains, it is recommended that the idler gear end play be checked Measuring Idler Gear End Play 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.
Install timing chain cover and crankshaft damper. Refer to procedures in this section.
Install cylinder head covers. Refer to procedures in this section
NOTE: Before installing threaded plug in right cylinder head, the plug must be coated with sealant to prevent leaks.
Coat the large threaded access plug with Mopar® Thread Sealant with Teflon, then install into the right cylinder head and tighten to 81 N·m (60 ft. lbs.) Cylinder Head Access Plug Location
Install the oil fill housing.
Install access plug in left cylinder head Cylinder Head Access Plug Location
Install power steering pump. Refer to Group 19, Steering for procedure.
Install radiator fan shroud. Refer to Group 7, Cooling System for procedure.
Fill cooling system. Refer to Group 7, Cooling System for coolant fill procedure.
Connect negative cable to battery.
