How to remove rocker arm cover, to change spark plugs.

Hi there:

Rocker Arms & Pushrods

Removal & Installation

3.1L & 3.4L Engines
Left Side

1. Before servicing the vehicle, refer to the precautions section.
2. Drain the cooling system to a level below the coolant pipe on the front of the engine.
3. Remove or disconnect the following:
   NOTEKeep the pushrods in order. Intake pushrods are 5 3 / 4 inches long and exhaust pushrods are 6 inches long.
   
   
   Negative battery cableSpark plug wiresHeater bypass pipePositive Crankcase Ventilation (PCV) valve and hoseRocker arm cover
   
   
   Rocker arms and pushrods
   

To install:

1. Lubricate all the valvetrain components with engine oil.
2. Install or connect the following:
   
   Pushrods and the rocker arms. Torque the bolts to 24 ft. lbs. (32 Nm).Rocker arm cover using a new gasket. Torque the rocker cover bolts to 89 inch lbs. (10 Nm).PCV valve and hoseHeater bypass pipe. Torque the screw at the water pump to 106 inch lbs. (12 Nm), the bolt at the cylinder head corner to 18 ft. lbs. (25 Nm) and the nut to 18 ft. lbs. (25 Nm).Spark plug wiresNegative battery cable
   
3. Refill the cooling system.
4. Start the vehicle and verify no leaks.

Right Side

1. Before servicing the vehicle, refer to the precautions section.
2. Remove or disconnect the following:
   NOTEKeep the pushrods in order. Intake pushrods are 5 3 / 4 inches long and exhaust pushrods are 6 inches long.
   
   
   Negative battery cableAlternator bracket on 2005 modelsSpark plug wires from the spark plugs and the upper intake plenum wire retainerPower brake booster vacuum pipe from the intake plenumAccessory drive beltAlternator, if necessaryIgnition coil assembly and Evaporative Emissions (EVAP) canister purge solenoid as an assemblyRocker arm cover
   
   
   Rocker arms and pushrods
   

To install:

1. Lubricate all the valvetrain components with engine oil.
2. Install or connect the following:
   
   Pushrods and the rocker arms. Torque the bolts to 24 ft. lbs. (32 Nm) plus an additional 30 degree turn.Rocker arm cover using a new gasket. Torque the rocker cover bolts to 89 inch lbs. (10 Nm).Ignition coil and EVAP solenoid assemblyAlternator, if removed. Torque the bolts to 37 ft. lbs. (50 Nm).Accessory drive beltPower brake booster vacuum pipe to the plenumSpark plug wiresNegative battery cable
   
3. Start the vehicle and verify no leaks.

Hope this helps.

The 3.1 engine does not have a belt,it is a chain motor.You do not need to remove timing chain to remove head.

Hi
these are the things you need to do.

Allow the car engine to cool by letting the car sit idle for several hours. Lift the hood and disconnect the negative battery cable. Remove the upper intake manifold assembly. Using the spark plug tool, remove the spark plugs. Disconnect the spark plug wires. This can be accomplished by pulling straight out on the boot. Locate the cylinder head and disconnect the closed ventilation system and evaporation control system from it.

Locate the left cylinder head cover and remove the DIS coil. Using the wrench, loosen and remove the rocker arm cover mounting bolts. Carefully remove the rocker arm cover from the cylinder head. Remove the gasket cover. Using the screwdriver, gently nudge the gasket to remove it from the seating area.

Using the automotive cleaner, remove any particles, oil or other remnants that were left by the old gasket. Place the new gasket in the gasket seating area. Using the torque wrench, tighten the rocker arm cover fasteners. Reverse the steps used to remove the parts

Complete the maintenance by adding oil to the car and allowing it to run idle for 10 to 15 minutes.

The bolts should have thread lock on them when installing, and the torque is done in 2 steps. 33 ft lbs. and then 90 deg. after that on the second pass. 3.1L Engine CAUTION
Observe all applicable safety precautions when working around fuel. Whenever servicing the fuel system, always work in a well ventilated area. Do not allow fuel spray or vapors to come in contact with a spark or open flame. Keep a dry chemical fire extinguisher near the work area. Always keep fuel in a container specifically designed for fuel storage; also, always properly seal fuel containers to avoid the possibility of fire or explosion. LEFT SIDE (FRONT)

1. Properly relieve the fuel system pressure.
2. Disconnect the negative battery cable.
3. Drain the cooling system into a suitable container.
4. Disconnect the top half of the air cleaner assembly, then remove the throttle body air inlet duct.
5. Remove the exhaust crossover pipe heat shield and crossover pipe.
6. Disconnect the spark plug wires from spark plugs and looms then route the wires out of the way.
7. Remove the rocker arm (valve) covers.
8. Remove upper intake plenum and lower intake manifold.
9. Remove the left side exhaust manifold.
10. Remove oil level indicator tube. NOTE: When removing the valve train components they must be kept in order for installation in the same locations they were removed from.
    
11. Remove rocker arms nut, rocker arms, balls and pushrods.
12. Unfasten the cylinder head bolts evenly, then remove the cylinder head from the engine compartment. Remove and discard the gasket. To install:
    
13. Clean all the gasket surfaces completely. Clean the threads on the cylinder head bolts and block threads.
14. Place the cylinder head gasket in position over the dowel pins on the cylinder block so the words THIS SIDE UP are showing.
15. Coat the bolt threads lightly with sealer, then install finger-tight.
16. Tighten the cylinder head bolts in sequence to 33 ft. lbs. (45 Nm). With all the bolts tightened make a second pass tightening all the bolts an additional 90°.
17. Install the pushrods, rocker arms, balls and rocker arm nuts in their proper locations. Tighten the rocker arm nuts to 18 ft. lbs. (25 Nm).
18. Install the lower intake manifold and upper intake plenum.
19. Install the rocker arm (valve) covers.
20. Install the oil level indicator tube. Insert the dipstick.
21. Connect the spark plug wires to spark plugs and looms.
22. Install the left side exhaust manifold.
23. Install the exhaust crossover pipe and heat shield.
24. Refill the cooling system.
25. Install the top half of the air cleaner assembly and the throttle body air inlet duct.
26. Connect negative battery cable.
27. Start vehicle and verify that there are no leaks. Fig. 20: Cylinder head mounting and bolt tightening sequence - 3.1L engine
    

RIGHT CYLINDER HEAD (REAR) CAUTION
Fuel Injection systems remain under pressure, even after the engine has been turned OFF. The fuel system pressure must be relieved before disconnecting any fuel lines. Failure to do so may result in fire and/or personal injury.

1. Relieve the fuel system pressure.
2. Disconnect the negative battery cable.
3. Drain the cooling system.
4. Remove the top half of the air cleaner assembly and remove the throttle body air inlet duct.
5. Remove the exhaust crossover pipe heat shield and crossover pipe.
6. Raise and safely support the vehicle.
7. Detach the Oxygen (O2) sensor connector.
8. Disconnect the exhaust pipe from the exhaust manifold.
9. Remove the right side exhaust manifold.
10. Carefully lower the vehicle.
11. Disconnect the spark plug wires from spark plugs and wire looms and route the wires out of the way.
12. Remove the rocker arm (valve) covers.
13. Remove upper intake plenum and lower intake manifold. NOTE: When removing the valve train components they must be kept in order for installation in the same locations they were removed from.
    
14. Remove rocker arms nut, rocker arms, balls and pushrods.
15. Unfasten the cylinder head bolts evenly, then remove the cylinder head from the engine compartment. Remove and discard the gasket. To Install:
    
16. Clean all the gasket surfaces completely. Clean the threads on the cylinder head bolts and block threads.
17. Place the cylinder head gasket in position over the dowel pins on the cylinder block so the words THIS SIDE UP showing.
18. Coat the bolt threads lightly with sealer, then install finger-tight.
19. Tighten the cylinder head bolts in sequence to 33 ft. lbs. (45 Nm). With all the bolts tightened make a second pass tightening all the bolts an additional 90°.
20. Install the pushrods loosely retained with the rocker arm assemblies. Make sure all pushrods are in the correct locations. Coat the ends of the pushrods with prelube. The intake rods are marked yellow and are 5 3?4 inch long. The exhaust pushrods are marked green and 6 inches long. balls and rocker arm nuts. Tighten the rocker arm nuts to 18 ft. lbs. (25 Nm).
21. Install the lower intake manifold and upper intake plenum.
22. Install the rocker arm (valve) covers.
23. Connect the spark plug wires to spark plugs and wire looms.
24. Raise and safely support the vehicle.
25. Install the exhaust manifold.
26. Connect the exhaust pipe to the exhaust manifold.
27. Carefully lower the vehicle.
28. Connect the Oxygen (O2) sensor wiring.
29. Install the exhaust crossover pipe and heat shield.
30. Refill the cooling system.
31. Install the top half of the air cleaner assembly and the throttle body air inlet duct.
32. Connect negative battery cable.
33. Start vehicle and verify that there are no leaks.

1.5 and 1.8 engines:
* Install the rocker arm and shaft assemblies. Tighten the rocker arm shaft retainer bolts to 23 ft. lbs. (32 Nm).
* Check valve adjustment and install the valve cover. Tighten the valve cover bolts to 16 inch lbs. (1.8 Nm) for the 1.5L engine or to 29 inch lbs. (3.3 Nm) for the 1.8L engine.


2.0 engine
* Lubricate the rocker shaft with clean engine oil and install the rockers and springs in their proper places.
* Install the rocker shaft assemblies on the engine. Tighten the bolts gradually and evenly to 21-25 ft. lbs. (29-35 Nm).


2.4 engine



Fig. Rocker arm shafts and components-2.4L engine



* Fit the rocker shaft springs from above and position them so that they are at right angles to the plug side. Install the rocker springs before installing the exhaust side rocker shaft and rocker arm assembly.

* Install the exhaust side rocker shaft assembly in the engine. Tighten the rocker shaft mounting bolts gradually and evenly to 23 ft. lbs. (32 Nm).
* Remove the lash adjuster retaining tools.
* Install the rocker cover and tighten the mounting bolts to 30 inch lbs. (3 Nm).
* Reinstall the spark plug wires to the spark plugs.


Hope helps.

the valve cover gasket has inner gasket some times called spark plug tube seal. so replace valve cover gasket will fix it

Left side:

To install:

1. Lubricate all the valvetrain components with engine oil.
   
2. Install or connect the following:
   
   • Pushrods and the rocker arms and tighten the bolts to 14 ft. lbs. (19 Nm) plus 30 degrees
     
   • Rocker arm cover using a new gasket and tighten the rocker cover bolts to 89 inch lbs. (10 Nm)
     
   • PCV valve to the rocker arm cover
     
   • Coolant tube with the thermostat bypass hose and tighten the bolt to 98 inch lbs. (11 Nm) and the nut to 18 ft. lbs. (25 Nm)
     
   • AIR check valve pipe and torque the adapters to 22 ft. lbs. (30 Nm)
     
   • Engine mount strut and torque the bolt to 35 ft. lbs. (48 Nm)
     
   • Spark plug wires
     
   • Negative battery cable
     

Right side:

To install:

1. Lubricate all the valve train components with engine oil.
   
2. Install or connect the following:
   
   • Pushrods and the rocker arms and tighten the bolts to 14 ft. lbs. (19 Nm) plus 30 degrees
     
   • Rocker arm cover using a new gasket and tighten the rocker cover bolts to 89 inch lbs. (10 Nm)
     
   • Power brake booster vacuum pipe to the plenum
     
   • EVAP solenoid and ignition coil assembly
     
   • Spark plug wires
     
   • Alternator bracket and torque the bolts to 37 ft. lbs. (50 Nm)
     
   • Alternator and torque the bolts to 37 ft. lbs. (50 Nm)
     
   • Accessory drive belt
     
   • Negative battery cable
     
3. Start the vehicle and verify no leaks.
   

You have to remove your valve cover, and under it there will be a wiring harness if you look between the rocker arms you will see them, just remove them like you would a spark plug.

replace valve cover gaske

This is All you need for this Repair, ALSO Be Sure ALL GASKET SURFACES ARE VERY CLEAN. This Engine Requires MORE than MOST ALL Engines do for this Repair.

REMOVAL

1. To remove a valve rocker arm cover from the RH cylinder head, disconnect PCV closure tube from oil fill stand pipe at rocker cover.
2. Remove the Thermactor bypass valve and air supply hoses as necessary to provide clearance.
3. Disconnect the spark plug wires from the spark plugs using Spark Plug Wire Remover T74P-6666-A or equivalent. Do not pull on wire. Remove the wires and bracket assembly from the rocker arm cover attaching stud and position the wires out of the way. ALSO MARK THEM AS TO WHERE THEY CAME FROM !!!
4. Remove upper intake manifold.
5. Remove attaching bolts and remove the cover.

INSTALLATION

1. Clean the valve rocker arm cover(s) and the cylinder head gasket surface(s). Position a new service valve rocker cover gasket.
2. Position the cover(s) on the cylinder head(s). The cover is tightened in two steps. Tighten the bolts to 14-18 N.m (10-13 lb-ft). Two minutes later, tighten the bolts to the same specification.
3. Install the crankcase ventilation tube in the RH cover.
4. Install upper intake manifold.
5. Install the spark plug wires and bracket assembly on the rocker arm cover attaching stud. Connect the spark plug wires. Install the air intake duct assembly.
6. Install the Thermactor bypass valve and air supply hoses (if required).