Ford 3L3Z-6564-BA Valve Rocker Arm Assembly

To dismantle the rocker arms and lash adjusters on the engines that are prior to 2005 with a 5.4L configuration, 2 procedures can be followed but the company recommends the use of a valve spring spacer and a valve spring compressor, these are specialized equipments that are available at auto part shops. The compressor uses the camshaft to reduce the pressure on the cam follower while the spacer shields the spring from over collapse. However, more often the camshaft gets withdrawn from the engine to be able to put into access the cam followers. It is also recommended to check that the pistons are not at TDC before compression of the valve springs because they have to be slightly off TDC to hold in the valve springs, this can be done by unscrewing the spark plug and inserting the plastic pen to check the piston positions. Valve spring compressor must be put to compress the spring to allow the removal of the rocker arm and other parts need to be tagged for identification for easy reassembly. Inserting a valve spring spacer is necessary in the coils as a way to protect the valve seal at the time of compression. The hydraulic lash adjuster must be therefore removed cautiously, and if the same has been varnished, then one can use penetrating oil for loosening it. For the engines produced since 2005 and equipped with 5.4L 3V, the operation should be performed in the following order: the rocker arms together with the camshafts and lash adjusters have to be taken out. The ball must be checked for wear or damage especially at the ball tip and ball sides and where the balls are identified to be problematic, it is recommended that, the entire set of balls be replaced so as not to cause a repeat in future. Wear at rocker arm should also be determined particular at the ball socket and at the roller surfaces. It should be noted that before installation lash adjusters should be bled of air when they are standing in oil with the plunger worked with thin wire. The valve stem tip, the rocker arm and the lash adjuster bore must be lubricated with clean engine oil before the lash adjusters and the rocker arms are fitted on the engine. Removal can be said to be the reverse of installation and in the course of the next few moments and after the engine has been re-started there will be certain tapping noises which should clear up after the engine has been warmed up and when it is run at higher RPM.

These engines are difficult to work on and require special tools for many procedures. On any procedure involving timing chain, camshaft, or cylinder head removal, the steps must be read carefully and disassembly must proceed using the special tools; otherwise, damage to the engine could result. Begin by removing the valve cover(s). Due to the interference design of these engines, the rocker arms must be removed before the timing chains and camshafts. Position the pistons off TDC before compressing the valve springs to remove the rocker arms or lash adjusters, compressing one cylinder at a time. Use a valve spring compressor to compress the spring enough to remove the rocker arm, ensuring that rocker arms and lash adjusters are matched to their original locations. Insert a valve spring spacer before compressing to prevent damage to the valve seal. Remove the hydraulic lash adjuster, applying penetrating oil if necessary. For 3-valve 4.6L and 5.4L engines, follow a two-stage process to remove rocker arms, ensuring to rotate the engine appropriately and label all components for reassembly. For the 5.0L engine, remove the camshaft operating the roller followers and separate the hydraulic lash adjusters from their clips. In 6.2L engines, remove the lower eight spark plugs, rotate the crankshaft to open the intake and exhaust valves on designated cylinders, and remove the rocker shaft assemblies. Inspect each adjuster for wear or damage, ensuring the plunger is not stuck, and consider replacing the entire set if any adjusters are replaced. Inspect the rocker arms for wear, particularly at contact points. When installing, bleed air from the lash adjusters, lubricate necessary components, and install them with the valve spring depressed. For 6.2L engines, clean and lubricate rocker arms and shafts before installation, positioning the camshaft lobes correctly for each cylinder during the process. The remainder of installation follows the reverse order of removal.

There are two techniques of dismantling the rocker arms and lash adjusters of this engine however the manufacturer prefers the technique that allows removal of the rocker arms and lash adjusters together without having to remove the camshaft(s) and this they can be done by using the special valve spring compressor meant for the engine. This proceeds from the camshaft, and accompanied with a ratchet or a breaker bar, it depresses the valve spring so that tension on the rocker arm is removed. The other method of its measurement entails the withdrawal of the camshaft for measurements to be made on it. First, remove the valve cover(s) and place the valve spring compressor tool in position and compress the spring only to take the rocker arm loose. Before proceeding the camshaft rocker arms and hydraulic lash adjusters have to be refitted in the positions they were removed from, so do not forget to label all the parts before storing them. Subsequently, disconnect the hydraulic lash adjuster and make sure you set aside things that will need to be reassemble. If the vehicle has very high trip settings, the adjusters might be built to last longer and rather stubborn to come out; use of penetrating oil will be helpful. Visual check each adjuster for wear and possible damage, such as pitting or discoloration, and consider to replace it in case doubts concerning it or in case of existence of the noise in the valve train are presupposed. An ordinary hair-pin or a twig of a paperclip can be used to touch the plunger to feel whether it has a restricted movement of not more than 1.5mm. Recommended for adjustment when one of the carriers requires replacement, it is better to replace the entire set and then avoid using more cash for repair. Also be sure also to check the conditions of the rocker arms by applying pressure to them to see signs of wear or damage. Prior to the installation of the lash adjusters, purge them of air as follows: stand the lash adjusters vertically in the oil and with the help of a thin wire or paper clip work the plunger. Coat the tip of stem, the rocker arm, the lash adjuster bore with clean engine oil; place the lash adjusters and the rocker arms with the aid of compressed valve spring. This is a process of removal and hence the steps followed here are the reverse of the steps that were highlighted during installation process. Modified lash adjusters will make some noise when starting until the air is cleared off; to reduce the noise on start up, change the engine speed from idle position to 3,000 rpm for one minute after the engine is warm.

Care has to be taken because these engines are intricate and many operations in their management, not excluding the temporal adjustments of timing chains, adjustments of camshafts, or the outright removal and replacement of cylinder heads require special and intricate tools which if inadequately applied, can cause massive damage to the engines in question. In 4.6L engines, to service the engine assembly, the valve covers have to be unbolted first, the rocker arms have to be removed also but they have to be removed in two phases so that valve head crashes into the pistons do not occur. The first stage involves compressing some valve springs and the removal of the rocker arms and the position of the engine slightly advance from TDC for cylinder one. The second stage involves turning the engine by 180 degrees anticlockwise to get rid of the other rocker arms. These camshaft rocker arms should be reassembled with the original camshaft lobes that were removed, and it is advisable to label and store all of the removed components in the event of their reuse. Finally, when the timing chains and camshafts have been taken out, the hydraulic lash adjusters have to be fixed in the exact positions where the late Lo optimizing algorithms were before they were detached from all these respective structures. In 5.0L engines, the camshaft operating the roller followers to be serviced should be taken off, as well as the hydraulic lash adjusters from their clips. Each adjuster should be checked for wear or damage where it meet the ball tip and sides and if there is any question about the adjusters in anyway it is best to replace the entire set for future problems. The rocker arms should also be inspected foe wear at the ball socket and roller surfaces. Before assembling them, the lash adjusters must be purged of air by placing them in a stand of oil and moving the plunger; the components should be coated in clean engine oil before reassembly. The engine may emit some noise after installation, especially in the adjusters until all the air is cleared; this problem can be solved by running the engine at a slightly higher pace for some time.

Detach the valve cover(s) from the cylinder head(s). Starting at the front of one cylinder head, remove the rocker arm fulcrum bolts, which may not need to be completely removed in all cases; loosen them several turns to see if the rocker arms can be pivoted out of the way for pushrod removal. Store the bolts separately in marked containers to ensure they are reinstalled in their original locations. If only the pushrods are being removed, loosen each bolt just enough to allow the rocker arms to be rotated to the side for pushrod extraction. Lift off the rocker arms and fulcrums, storing them in marked containers with the bolts for proper reinstallation. Remove the pushrods and store them separately to avoid mixing during installation, using a perforated cardboard box for organization and labeling the front of the engine. Check each rocker arm for wear, cracks, and other damage, particularly at the contact points with the pushrods and valve stems. Ensure the hole at the pushrod end of each rocker arm is clear. Inspect the pivot area and fulcrum for wear, cracks, and galling; replace any worn or damaged rocker arms and fulcrums with new ones. Examine the pushrods for cracks and excessive wear at the ends, rolling each across a piece of plate glass to check for bending. Lubricate the lower end of each pushrod with clean engine oil or moly-base grease and install them in their original locations, ensuring each pushrod seats completely in the lifter. Apply moly-base grease to the ends of the valve stems and the upper ends of the pushrods before positioning the rocker arms and fulcrums. Grease the fulcrums to protect the mating surfaces prior to engine oil pressure buildup, then set the rocker arms and guides in place, installing the fulcrums and bolts, and tightening the rocker arm bolts to specifications. Finally, install the valve covers, completing the installation in reverse order of removal.

Yes, it is the new manufacturing part number

The rocker arms are sold individually, one per order

On a 5.4L engine you will need 24