Mustang GT V8-4.6L SOHC VIN X (1998)
Valve: Testing and Inspection
Stem to Guide Clearance
Check the valve stem-to-valve guide clearance of each valve in its respective valve guide with Dial Indicator with Bracketry 100-002 (TOOL-4201-C)
and Valve Stem Clearance Tool 303-004 (TOOL-6505-E) or equivalents. Use a flat-end indicator point.
Install the tool on the valve stem until it is fully seated and firmly tighten the knurled setscrew. Permit the valve to drop away from its seat until the tool
contacts the upper surface of the valve guide.
Position Dial Indicator with Bracketry 100-002 (TOOL-4201-C) or equivalent with its flat tip against the center portion of the tool's spherical section at
approximately 90 degrees to the valve stem axis. Move the tool back and forth in line with the indicator stem. Take a reading on the dial indicator
without removing the tool from the valve guide upper surface. Divide the reading by two which is the division factor for the tool. If valve stem-to-valve
guide clearance exceeds the wear limit, ream the valve guide for the next oversize valve stem
