Sunday, April 22, 2012

Cylinder Head Replacing on Dodge Stratus?

How to replace Cylinder head on 2.0L Engine model.

Please Note that this Procedure Covers all U.S. and Canadian models of the Chrysler/Dodge Avenger, Chrysler Sebring Coupe and Dodge Stratus/ Stratus Coupe models for Year 1999 to 2005.

The details and helpful diagrams to replace Cylinder head are as follows: ----

Cylinder Head Replacing For 2.0L Engine:---
  1. Disconnect battery negative cable from remote negative terminal on shock tower and properly isolate to prevent accidental reconnection.
  2. Properly relieve the fuel system pressure.
  3. Drain the engine coolant.
  4. Remove or disconnect the following:

    Negative battery cable
    Air cleaner assembly
    All vacuum hoses, lines and wiring harness connections required for cylinder head removal
    Fuel line
    Throttle linkage
    Accessory drive belt(s)
    Power steering pump and move aside
    Coil pack wiring connector
    Spark plug wires from the spark plugs
    Ignition coil pack unit
    Cylinder head cover
    Intake and exhaust manifolds, if necessary
    Timing belt cover, timing belt, camshaft sprocket and rear timing belt cover
    Rocker arm/rocker arm shaft assemblies
    Cylinder head bolts and cylinder head
To install: 
The cylinder head bolts should be checked for stretching before reuse. If the thread area of the bolt is necked-down the bolts must be replaced with new. New head bolts are recommended.

Click image to see an enlarged view
Fig. Checking the cylinder head bolts for necking (stretching)-2.0L engine

Fig. Cylinder head bolt tightening sequence-2.0L engine

Stretch-type bolts are used. New head bolts are recommended.

  1. Thoroughly clean all parts. Clean all sealing surfaces. Use care not to scratch the aluminum cylinder head sealing surface. Check the cylinder head for flatness using a feeler gauge and a straight-edge. The cylinder head must be flat within 0.004 in. (0.1mm).
  2. Check the cylinder head for cracks or other damage.
  3. Install a new gasket and the cylinder head.
  4. Lubricate the cylinder head bolt threads with clean engine oil.
  5. Install the cylinder head bolts, the short bolts (110mm) are to be installed in positions 7, 8, 9 and 10.
  6. Torque the cylinder head bolts in 4 steps as follows:
    1. Step 1: 25 ft. lbs. (34 Nm).
    2. Step 2: 50 ft. lbs. (68 Nm).
    3. Step 3: Again to 50 ft. lbs. (68 Nm).
    4. Step 4: Plus 1 / 4 (90 degree) turn. 
      Do not use a torque wrench for the 4th step.
  7. Install or connect the following:

    Rocker arm/rocker arm shaft assemblies
    Cylinder head cover
    Timing belt rear cover, camshaft sprocket and timing belt
    Timing belt cover
    Intake and exhaust manifolds, if removed
    Ignition coil pack
    Coil pack wiring connector and spark plug wires
    Power steering pump
    Accessory drive belts
    Throttle linkage
    All ducts, hoses, fuel lines and wiring harness connectors
    Air cleaner assembly
    Negative battery cable
  8. Fill the cooling system.
    A complete oil and filter change is recommended.
  9. Start the engine and check for leaks. Run the engine with the radiator cap off so as the engine warms and the thermostat opens, coolant can be added to the radiator. When the cooling system is full, shut the engine OFF , install the radiator cap and allow the engine to cool.
  10. With the engine cool, check all fluid levels. Add coolant and oil as required. Restart the engine and test drive vehicle to check for proper operation.
This engine uses a Single Over Head Camshaft (SOHC) 4-valves per cylinder cross flow aluminum cylinder head. Care must be taken to be sure all valve timing marks align after cylinder head service.
Fig. Exploded view of the cylinder head and valve train components-2.0L engine

These details will help.


Car repair guide?


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