Engine

Cylinder Head

~1min read
1special tools

Special Tool(s)

Compressor, Valve Spring 303-163 (T81P-6513-A)

Material

Item Specification
SAE 5W-20 Premium Synthetic Blend Motor Oil XO-5W20-QSP or equivalent WSS-M2C153- H

Disassembly and Assembly

CAUTION: If the components are to be reinstalled, they must be installed in the same position. Mark the components removed for location.

1. Remove the spark plugs (12405) if necessary.

2. Using the special tool, compress the valve springs (6513).

Cylinder Head

3. Remove the following:

1. The valve spring retainer key (6518).

2. The valve spring retainers (6514).

3. The valve springs (6513).

4. The valve stem seals and seats (6A517).

Cylinder Head

4. Inspect the components.

5. CAUTION: Lubricate the parts with clean engine oil before installing.

To assemble, reverse the disassembly procedure.

Test yourself

A quick Ford Mustang quiz: every answer comes with an explanation and a link to the manual page.