Mustang GT V8-4.6L SOHC VIN X (1998)
9. Repeat Steps 2 through 8 until all necessary valve stem seals are removed.
INSTALLATION
1. Remove air pressure from spark plug adapter. Inspect the valve stem for damage. Rotate the valve and check the valve stem tip for eccentric
movement during rotation. Move the valve up and down through normal travel in the valve guide and check the stem for binds.
NOTE: Piston must be at Top Dead Center (TDC) of cylinder being serviced.
2. If the condition of the valve is satisfactory, apply clean engine oil meeting Ford specification WSS-M2C153-G to the valve stem and hold the
valve closed. Apply the air pressure within the cylinder.
CAUTION: If the valve has been damaged, it will be necessary to remove the cylinder head for service.
3. Install new valve stem seal using Valve Stem Seal Replacer 303-383 (T91P-6571-A).
4. Position valve spring and valve spring retainer over valve stem.
5. Install Valve Spring Spacer 303-382 (T91P-6565-AH) between valve spring coils.
6. Compress valve spring using Valve Spring Compressor 303-381 (T91P-6565-A) and install valve spring retainer key.
7. Remove Valve Spring Compressor 303-381 (T91P-6565-A) and Valve Spring Spacer 303-382 (T91P-6565-AH).
8. Turn air supply OFF and remove adapter from spark plug hole.
9. Install spark plug.
10. Install rocker arms and valve covers.
11. Start engine and check for leaks.
