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Timing chain removal on Dodge Dakota?

The complete Procedure for Timing Chain & Sprockets Replacing.

The details with required help diagrams are provided.

The procedure is as follows :----


Removal & Installation



3.7L Engines
  1. Before servicing the vehicle, refer to the precautions section.
  2. Drain the cooling system.
  3. Remove or disconnect the following:

    Negative battery cable
    Valve covers
    Radiator fan
  4. Rotate the crankshaft so that the crankshaft timing mark aligns with the Top Dead Center (TDC) mark on the front cover, and the V6 marks on the camshaft sprockets are at 12 o-clock. 

    Power steering pump
    Access plugs from the cylinder heads
    Oil fill housing
    Crankshaft damper 

    image 
    Fig. Camshaft sprocket timing marks-3.7L engine


    image
    Fig. Crankshaft timing marks-3.7L engine


    image
    Fig. Cylinder head access plugs-3.7L engine
  5. Compress the primary timing chain tensioner and install a lockpin.
  6. Remove the secondary timing chain tensioners.
  7. Hold the left camshaft with adjustable pliers and remove the sprocket and chain. Rotate the left camshaft 15 degrees clockwise to the neutral position.
  8. Hold the right camshaft with adjustable pliers and remove the camshaft sprocket. Rotate the right camshaft 45 degrees counterclockwise to the neutral position.
  9. Remove the primary timing chain and sprockets.
To install:
image
Fig. Secondary timing chain tensioner preparation-3.7L engine
  1. Use a small prytool to hold the ratchet pawl and compress the secondary timing chain tensioners in a vise and install locking pins.
    NOTE
    The black bolts fasten the guide to the engine block and the silver bolts fasten the guide to the cylinder head.
  2. Install or connect the following:

    Secondary timing chain guides. Tighten the bolts to 21 ft. lbs. (28 Nm).
    Secondary timing chains to the idler sprocket so that the double plated links on each chain are visible through the slots in the primary idler sprocket
  3. Lock the secondary timing chains to the idler sprocket with Timing Chain Locking tool as shown.

    Click image to see an enlarged view
    Fig. Installing the idler gear and timing chain-3.7L engine


    Click image to see an enlarged view
    Fig. Counterbalance shaft timing marks-3.7L engine


    Click image to see an enlarged view
    Fig. Tightening the left side camshaft sprocket-3.7L engine


    Click image to see an enlarged view
    Fig. Tightening the right side camshaft sprocket-3.7L engine


    Click image to see an enlarged view
    Fig. Use the Timing Chain Locking tool to lock the timing chains on the idler gear-3.7L engine


    Click image to see an enlarged view
    Fig. Timing chain system and alignment marks-3.7L engine
  4. Align the primary chain double plated links with the idler sprocket timing mark and the single plated link with the crankshaft sprocket timing mark.
  5. Install the primary chain and sprockets. Tighten the idler sprocket bolt to 25 ft. lbs. (34 Nm).
  6. Align the secondary chain single plated links with the timing marks on the secondary sprockets. Align the dot at the L mark on the left sprocket with the plated link on the left chain and the dot at the R mark on the right sprocket with the plated link on the right chain.
  7. Rotate the camshafts back from the neutral position and install the camshaft sprockets.
  8. Remove the secondary chain locking tool.
  9. Remove the primary and secondary timing chain tensioner locking pins.
  10. Hold the camshaft sprockets with a spanner wrench and tighten the retaining bolts to 90 ft. lbs. (122 Nm).

    Click image to see an enlarged view
    Fig. Timing cover bolt torque sequence-3.7L engine
  11. Install or connect the following:

    Front cover. Tighten the bolts, in sequence, to 40 ft. lbs. (54 Nm).
    Front crankshaft seal
    Cylinder head access plugs
    A/C compressor
    Alternator
    Accessory drive belt tensioner. Tighten the bolt to 40 ft. lbs. (54 Nm).
    Oil fill housing
    Crankshaft damper. Tighten the bolt to 130 ft. lbs. (175 Nm).
    Power steering pump
    Lower radiator hose
    Heater hoses
    Accessory drive belt
    Engine cooling fan and shroud
    Camshaft Position (CMP) sensor
    Valve covers
    Negative battery cable
  12. Fill and bleed the cooling system.
  13. Start the engine, check for leaks and repair if necessary.
4.7L Engine
  1. Before servicing the vehicle, refer to the precautions section.
  2. Drain the cooling system.
  3. Remove or disconnect the following:

    Negative battery cable
    Valve covers
    Camshaft Position (CMP) sensor
    Engine cooling fan and shroud
    Accessory drive belt
    Heater hoses
    Lower radiator hose
    Power steering pump
  4. Rotate the crankshaft so that the crankshaft timing mark aligns with the Top Dead Center (TDC) mark on the front cover, and the V8 marks on the camshaft sprockets are at 12 o-clock. 

    Click image to see an enlarged view
    Fig. Crankshaft timing marks-4.7L engine


    Click image to see an enlarged view
    Fig. Camshaft positioning-4.7L engine
  5. Remove or disconnect the following:

    Crankshaft damper
    Oil fill housing
    Accessory drive belt tensioner
    Alternator
    A/C compressor
    Front cover
    Front crankshaft seal
    Cylinder head access plugs
    Secondary timing chain guides

    Click image to see an enlarged view
    Fig. Cylinder head access plug locations-4.7L engine


    Click image to see an enlarged view
    Fig. Compress and lock the primary chain tensioner-4.7L engine
  6. Compress the primary timing chain tensioner and install a lockpin.
  7. Remove the secondary timing chain tensioners.
  8. Hold the left camshaft with adjustable pliers and remove the sprocket and chain. Rotate the left camshaft 15 degrees clockwise to the neutral position.
  9. Hold the right camshaft with adjustable pliers and remove the camshaft sprocket. Rotate the right camshaft 45 degrees counterclockwise to the neutral position.
  10. Remove the primary timing chain and sprockets.
To install:
Click image to see an enlarged view
Fig. Secondary timing chain tensioner preparation-4.7L engine
  1. Use a small prytool to hold the ratchet pawl and compress the secondary timing chain tensioners in a vise and install locking pins.
    NOTE
    The black bolts fasten the guide to the engine block and the silver bolts fasten the guide to the cylinder head.
  2. Install or connect the following:

    Secondary timing chain guides. Tighten the bolts to 21 ft. lbs. (28 Nm).
    Secondary timing chains to the idler sprocket so that the double plated links on each chain are visible through the slots in the primary idler sprocket
  3. Lock the secondary timing chains to the idler sprocket with Timing Chain Locking tool 8515 as shown.

    Click image to see an enlarged view
    Fig. Use the Timing Chain Locking tool to lock the timing chains on the idler gear-4.7L engine


    Click image to see an enlarged view
    Fig. Timing chain system and alignment marks-4.7L engine
  4. Align the primary chain double plated links with the idler sprocket timing mark and the single plated link with the crankshaft sprocket timing mark.
  5. Install the primary chain and sprockets. Tighten the idler sprocket bolt to 25 ft. lbs. (34 Nm).
  6. Align the secondary chain single plated links with the timing marks on the secondary sprockets. Align the dot at the L mark on the left sprocket with the plated link on the left chain and the dot at the R mark on the right sprocket with the plated link on the right chain.
  7. Rotate the camshafts back from the neutral position and install the camshaft sprockets.
  8. Remove the secondary chain locking tool.
  9. Remove the primary and secondary timing chain tensioner locking pins.
  10. Hold the camshaft sprockets with a spanner wrench and tighten the retaining bolts to 90 ft. lbs. (122 Nm).

    Click image to see an enlarged view
    Fig. Timing chain cover bolt torque sequence-4.7L engine
  11. Install or connect the following:

    Front cover. Tighten the bolts, in sequence, to 40 ft. lbs. (54 Nm).
    Front crankshaft seal
    Cylinder head access plugs
    A/C compressor
    Alternator
    Accessory drive belt tensioner. Tighten the bolt to 40 ft. lbs. (54 Nm).
    Oil fill housing
    Crankshaft damper. Tighten the bolt to 130 ft. lbs. (175 Nm).
    Power steering pump
    Lower radiator hose
    Heater hoses
    Accessory drive belt
    Engine cooling fan and shroud
    Camshaft Position (CMP) sensor
    Valve covers
    Negative battery cable
  12. Fill the cooling system.
  13. Start the engine and check for leaks.

These details will help.
Thanks.           

FOR MORE HELP GO TO: ---

Car repair guide?

http://technoanswers.blogspot.in/2012/03/car-repair-guide.html


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