Chrysler 5045515AA PUSHROD-Intake Valve

To do this one has to slot the pushrod retainer special tool #9070 on the pushrods then bolt and tighten the tool mounting bolts. Un Tighten the rocker arm shaft bolts, from the middle then loosen the rocker shaft till you can lift it off the cylinder head, the heads of the rocker arm assembly are marked to indicate that the upper are intakes and the lower exhausts. Since the tangs may fall into the engine if removed, it is necessary not to take out the retainers from the rocker shaft assemblies. Make sure of the positions of the rocker arms in order to align them for reassembly, and store every set of rocker parts properly. Now, one by one undo the pushrod retainer tool fasteners and take out the pushrods, while pulling back the trolley as required in order not to mix the exhaust pushrods with the intake ones, as the former are slightly longer than the latter and, therefore, are not interchangeable. Where the cylinder heads have been removed and milled to ensure flatness, ensure to replace the correct length of pushrods to match the dimension of the decrease distances for the rocker arms to the camshaft. Examining each rocker arm on wear, cracks, and other damages, at the contact points with the pushrods and the valve stems, as well as the rocker arm shafts and bores for wears, and replace the worn or damaged one. Assure that there is an open hole at the pushrod end of each rocker arm and if possible look for cracks on the push rods, and excessive wear, roll each of the push rods across a piece of plate glass. Coat the lower end of each pushrod using clean engine oil or assembly lube and then replace these in their original spots; make sure it settles correctly and firmly within the lifter socket. Use engine assembly lube on the ends of the valve stems and at the upper end of the push rods in view of the initial starting period. Following the realignment of the pushrods, fix the pushrod retainer nuts as tightly as possible. Coat the rocker shafts with clean engine oil or assembly lube, then fit the rocker shafts with all parts as they have been before and then put them back on the cylinder heads. Tighten the rocker arm shafts firstly on the centre bolt and in sequence on opposite ends until the right torque is attained to sit the pushrods correctly in the rocker arms. If the rocker arm bolts tighten further before the shaft settles or if the push rods stick, one should not carry on tightening as this will only aggravate the problem; he or she should remove the rocker arm and then examine the rocker arm shafts and other components closely. Last, remove the pushrod retainer and the special tool, replace the valve covers and start the engine, preliminary checking for the strong valve train squealing and the oil leakage on the valve cover gaskets.

To remove the valve covers from the cylinder heads, first loosen the rocker arm shaft bolts, beginning with the center bolts and moving outward. Once fully loosened, lift the rocker shaft assembly off the cylinder head, marking each rocker arm assembly to ensure the upper rocker arms (intake) and lower rocker arms (exhaust) are noted. Keep track of the rocker arm positions for reinstallation, storing each set of components in a way that maintains their original locations, and remove the pushrods, storing them in order to avoid mixing them up. Note that exhaust pushrods are slightly longer than intake pushrods and are not interchangeable. If the cylinder heads have been milled for flatness, install the correct length pushrods to compensate for the reduced distances of the rocker arms to camshaft dimensions, consulting with a machine shop if necessary. Inspect each rocker arm for wear, cracks, and damage, particularly at the contact points with pushrods and valve stems, and check the rocker arm shafts and bores for wear, replacing any worn or damaged components. Ensure the hole at the pushrod end of each rocker arm is clear, and inspect the pushrods for cracks and excessive wear, rolling them across a flat surface to check for bends. Lubricate the lower end of each pushrod with clean engine oil or assembly lube before reinstalling them in their original locations, ensuring they seat completely in the lifter socket. Apply assembly lube to the valve stems and upper ends of the pushrods to protect mating surfaces during initial start-up, then lubricate the rocker shafts and assemble them with all components in their original positions before installing onto the cylinder heads. Tighten the rocker arm shafts starting with the center bolt and following a specific sequence until the specified torque is reached, ensuring the pushrods seat properly in the rocker arms. If the bolts become tight before the shaft is seated or the pushrods bind, do not continue tightening; instead, remove the rocker arm shafts and inspect all components carefully. Finally, install the valve covers, start the engine, and listen for unusual valve train noises while checking for oil leaks at the valve cover gaskets.

Disconnect the wires from the batteries at their negative terminals. Then remove the valve cover. Mark and detach the rocker arm/pedestal assemblies. Mark and take off crossheads. Pin down rocker arm sockets before raising them out of cylinder head. Mark and remove pushrods. Remove, clean with solvent, and disassemble rocker arms, pedestals, and shafts parts. Check for debris by blowing through oil passages. Get each rocker shaft bearing surface inspected for replacement if necessary.Measure each inside diameter of rocker arm bore against each outside diameter of rocker shaft and replace if worn too much.Check for cracks and scoring on all pushrod balls and ball seats, replacing any that are damaged.Look for damage or excessive wear on all crossheads in which case those affected should be replaced.Place the pushrods into position lubricate valve tips then put in place crossheads.Re-lubricate the bores , rockershafts then recapitulate the assembly of rockershaft/rockerarm/pedestal.Ensure lubrication of both crossheads as well as those sockets receiving a pushrod are done then fix a set of rockerarm/pedestal.The process ends by checking valve clearance.Installation of valve cover here may take place where it is not already installed.

Disconnect the wires from the batteries at their negative terminals. Then remove the valve cover. Mark and detach the rocker arm/pedestal assemblies. Mark and take off crossheads. Pin down rocker arm sockets before raising them out of cylinder head. Mark and remove pushrods. Remove, clean with solvent, and disassemble rocker arms, pedestals, and shafts parts. Check for debris by blowing through oil passages. Get each rocker shaft bearing surface inspected for replacement if necessary.Measure each inside diameter of rocker arm bore against each outside diameter of rocker shaft and replace if worn too much.Check for cracks and scoring on all pushrod balls and ball seats, replacing any that are damaged.Look for damage or excessive wear on all crossheads in which case those affected should be replaced.Place the pushrods into position lubricate valve tips then put in place crossheads.Re-lubricate the bores , rockershafts then recapitulate the assembly of rockershaft/rockerarm/pedestal.Ensure lubrication of both crossheads as well as those sockets receiving a pushrod are done then fix a set of rockerarm/pedestal.The process ends by checking valve clearance.Installation of valve cover here may take place where it is not already installed.

Disconnect the wires from the batteries at their negative terminals. Then remove the valve cover. Mark and detach the rocker arm/pedestal assemblies. Mark and take off crossheads. Pin down rocker arm sockets before raising them out of cylinder head. Mark and remove pushrods. Remove, clean with solvent, and disassemble rocker arms, pedestals, and shafts parts. Check for debris by blowing through oil passages. Get each rocker shaft bearing surface inspected for replacement if necessary.Measure each inside diameter of rocker arm bore against each outside diameter of rocker shaft and replace if worn too much.Check for cracks and scoring on all pushrod balls and ball seats, replacing any that are damaged.Look for damage or excessive wear on all crossheads in which case those affected should be replaced.Place the pushrods into position lubricate valve tips then put in place crossheads.Re-lubricate the bores , rockershafts then recapitulate the assembly of rockershaft/rockerarm/pedestal.Ensure lubrication of both crossheads as well as those sockets receiving a pushrod are done then fix a set of rockerarm/pedestal.The process ends by checking valve clearance.Installation of valve cover here may take place where it is not already installed.