Ford F8AZ-6564-AA
Rocker Arms

Before undertaking rock arm assembly replacement start with thorough cleaning to avoid contaminants from entering lubrication channels which might damage engine components. First, remove the valve cover. Before the disassembly of bolts and rocker arm pivots and rocker arms from each cylinder write down notes about their original positions to ease their future reinstallation. The next step includes applying clean engine oil to both the rocker arms as well as their pivots after they are inspected. Following proper alignment of rocker arms and pivots install the bolts while tightening them first to 5 Nm (44 lb-in) and then increasing to 32 Nm (24 lb-ft). Finally, reinstall the valve cover.

Service and repair of the rocker arm assembly starts with a valve cover removal followed by disconnecting the assembly through bolt removal. Correct reinstallation of the components requires marking the multiple removed rocker arms before disassembly. The installation process requires installing rocker arms before performing bolt tightening in two steps: start at 5Nm (44-inch lbs) and complete at 35Nm (26 ft. lbs). Finally, reinstall the valve cover.

Examine the roller follower for push rod engines before starting rocker arm repair tasks with inspections for flat spots or scoring. Check the camshaft lobes and valve tappet during the inspection of damage found on the rocker arm assembly. The appropriate inspection procedures should be followed for overhead cam (OHC) engine systems.

Start the rocker arm assembly servicing process by eliminating valve covers and after that extract the assembly by removing its bolt. Multiple rocker arm removal requires the use of component marks that will help with proper reinstallation order. The installation process requires mounting of rocker arms before tightening the bolts through two stages where you should first tighten to 5 Nm (44-inch lbs.) followed by a second stage at 35 Nm (26 ft. lbs.). Finally, reinstall the valve covers.

The procedure for inspecting and repairing rocker arm assemblies requires starting with push rod engine roller follower examinations that check for roller flat spots and scoring damage. Examine the camshaft lobes as well as valve tappet after detecting any damage in the rocker arm assembly inspection. OHC engine service operations require using established inspection and repair procedures when needed.

Follow the appropriate procedures for inspection and repair as needed.

Inspect the camshaft lobes and hydraulic lash adjuster for damage.

Begin by thoroughly cleaning all parts and ensuring that all oil passages are open, including the oil passage in the push rod/valve tappet end of the rocker arm.

Begin by removing the valve covers.

Finally, reinstall the valve cover.

First, install the rocker arms.