Cylinder Head Removal on Dodge Dakota 3.7L Engine?

The complete details for replacing cylinder head on dodge dakota 3.7L Engine models.

The procedure with required details and Helpful Diagrams are as follows: --------

Removal & Installation

3.7L Engine
Left Side

1. Before servicing the vehicle, refer to the precautions section.
2. Drain the cooling system.
3. Properly relieve the fuel system pressure.
4. Remove or disconnect the following:
   
   
   Negative battery cable
   

   Exhaust Y-pipe
   

   Intake manifold
   

   Cylinder head cover
   

   Engine cooling fan and shroud
   

   Accessory drive belt
   

   Power steering pump
   
5. 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 as shown. 
   
   
   Crankshaft damper
   

   Front cover 
   
    
   

   Fig. Camshaft sprocket timing marks-3.7L
6. Lock the secondary timing chain to the idler sprocket with Timing Chain Locking tool 8429. 
   
   
   
   Fig. Camshaft locking tool-3.7L
7. Matchmark the secondary timing chain one link on each side of the V6 mark to the camshaft sprocket.
   
   NOTE

   The cylinder head is retained by twelve bolts. Four of the bolts are smaller and are at the front of the head.
   
   
   
   
   Left secondary timing chain tensioner
   

   Cylinder head access plug
   

   Secondary timing chain guide
   

   Camshaft sprocket
   

   Cylinder head
   

To install:

Fig. Examine the head bolts for signs of stretching-3.7L engine

1. Check the cylinder head bolts for signs of stretching and replace as necessary.
2. Lubricate the threads of the 11mm bolts with clean engine oil.
3. Coat the threads of the 8mm bolts with Mopar® Lock and Seal Adhesive, or equivalent.
4. Install the cylinder heads. Use new gaskets and tighten the bolts, in sequence, as follows:
   1. Step 1: Bolts 1-8 to 20 ft. lbs. (27 Nm)
   2. Step 2: Bolts 1-10 verify torque without loosening
   3. Step 3: Bolts 9-12 to 10 ft. lbs. (14 Nm)
   4. Step 4: Bolts 1-8 plus ¹ / ₄ (90 degree) turn
   5. Step 5: Bolts 1-8 plus ¹ / ₄ (90 degree) turn again
   6. Step 6: Bolts 9-12 to 19 ft. lbs. (26 Nm)
      
      
      

      

      Fig. Cylinder head bolt torque sequence-3.7L
5. Install or connect the following:
   
   
   Camshaft sprocket. Align the secondary chain matchmarks and tighten the bolt to 90 ft. lbs. (122 Nm).
   

   Secondary timing chain guide
   

   Cylinder head access plug
   

   Secondary timing chain tensioner. Refer to the timing chain procedure in this section.
   
6. Remove the Timing Chain Locking tool.
7. Install or connect the following:
   
   
   Front cover
   

   Crankshaft damper. Torque the bolt to 130 ft. lbs. (175 Nm).
   

   Power steering pump
   

   Accessory drive belt
   

   Engine cooling fan and shroud
   

   Cover
   

   Intake manifold
   

   Exhaust Y-pipe
   

   Negative battery cable
   
8. Fill and bleed the cooling system.
9. Start the engine, check for leaks and repair if necessary.

Right Side

1. Before servicing the vehicle, refer to the precautions section.
2. Drain the cooling system.
3. Properly relieve the fuel system pressure.
4. Remove or disconnect the following:
   
   
   Negative battery cable
   

   Exhaust Y-pipe
   

   Intake manifold
   

   Valve cover
   

   Engine cooling fan and shroud
   

   Accessory drive belt
   

   Oil fill housing
   

   Power steering pump
   
5. 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 as shown. 
   
   
   

   

   Fig. Crankshaft timing marks-3.7L engine
   
   
   
   

   

   Fig. Camshaft positioning-3.7L engine
6. Remove or disconnect the following:
   
   
   Crankshaft damper
   

   Front cover
   
7. Lock the secondary timing chains to the idler sprocket with Timing Chain Locking tool 8429.
8. Matchmark the secondary timing chains to the camshaft sprockets.
9. Remove or disconnect the following:
   
   NOTE

   Each cylinder head is retained by eight 11mm bolts and four 8mm bolts.
   
   
   
   
   Secondary timing chain tensioners
   

   Cylinder head access plugs
   

   Secondary timing chain guides
   

   Camshaft sprockets
   

   Cylinder heads
   

To install:

1. Check the cylinder head bolts for signs of stretching and replace as necessary.
2. Lubricate the threads of the 11mm bolts with clean engine oil.
3. Coat the threads of the 8mm bolts with Mopar® Lock and Seal Adhesive, or equivalent.
4. Install the cylinder heads. Use new gaskets and tighten the bolts, in sequence, as follows:
   1. Step 1: Bolts 1-8 to 20 ft. lbs. (27 Nm)
   2. Step 2: Bolts 1-10 verify torque without loosening
   3. Step 3: Bolts 9-12 to 10 ft. lbs. (14 Nm)
   4. Step 4: Bolts 1-8 plus ¹ / ₄ (90 degree) turn
   5. Step 5: Bolts 9-12 to 19 ft. lbs. (26 Nm)
5. Install or connect the following:
   
   
   Camshaft sprockets. Align the secondary chain matchmarks and tighten the bolts to 90 ft. lbs. (122 Nm).

   Secondary timing chain guides

   Cylinder head access plugs

   Secondary timing chain tensioners. Refer to the timing chain procedure in this section.
6. Remove the Timing Chain Locking tool.
7. Install or connect the following:
   
   
   Front cover

   Crankshaft damper. Torque the bolt to 130 ft. lbs. (175 Nm).

   Rocker arms

   Power steering pump

   Oil fill housing

   Accessory drive belt

   Engine cooling fan and shroud

   Valve covers

   Intake manifold

   Exhaust Y-pipe

   Negative battery cable
8. Fill and bleed the cooling system.
9. Start the engine, check for leaks and repair if necessary.

These details will help.

Thanks.           

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Car repair guide?

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