3.7L Cylinder Head Removal on Dodge RAM?

The procedure and details for Cylinder head replacing.

The procedure is for 3.7L Engine.

The dodge Cylinder head removal is as follows:---

3.7L Engine
Left Side

1. Drain the cooling system.
2. Properly relieve the fuel system pressure.
3. Remove or disconnect the following:
   
   
   Negative battery cable

   Exhaust Y-pipe

   Intake manifold

   Brake booster and master cylinder

   Cylinder head cover

   Engine cooling fan and shroud

   Accessory drive belt

   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 V6 marks on the camshaft sprockets are at 12 o-clock as shown. 
   
   
   Crankshaft damper

   Front cover 
   
   
   

   Fig. Camshaft sprocket timing marks-3.7L
5. Lock the secondary timing chain to the idler sprocket with Timing Chain Locking tool 8429. 
   
   
   
   Fig. Camshaft locking tool-3.7L
6. 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.
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) 
      
      
      

      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 8 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.
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.           

FOR MORE HELP GO TO: ---

Car repair guide?

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