Valve Spring, Retainer And Stem Seal; Cylinder Head Removed; Cylinder Head Installed - Ford VSG-411 Service Manual

01-21 Basic Encrine
01-21
REMOVAL AND INSTALLATION (Continued)
Valve Spring, Retainer and Stem Seal
Cylinder Head Removed
Removal
1.
Remove the exhaust manifold and the spark plugs.
2.
Compress the valve spring with a valve spring
compressor. Remove the valve spring retainer locks,
release the spring and remove the spring and
retainer.
3. Remove the seal and withdraw the valve.
Installation
Lubricate all valves, valve stems and valve guides with
heavy engine oil, SAE 50 weight.
1. Install each valve in the valve guide hole from which it
was removed or to which a new valve is to be used.
2.
Cover the valve grooves with plastic tape, slide the
new seal onto the valve stem, remove the tape.
NOTE: The exhaust valves are fitted with umbrella
type seals. The intake valves have the " positive"
guide mounted seals which must be pressed on with
a special service tool. " Positive" type seals may only
be installed on intake valves not having the Ford oval
on the stem.
EXHAUST
VALVE SEAL
3. Install valve spring and damper assembly over the
valve, then install spring retainer. Compress spring
and install retainer key locks.
4. Measure the assembled height of the valve spring
from the underside of the spring to the underside of
the spring retainer. If the assembled height is not
within specification, valve spring load loss may be
excessive. Shim spring to specification.
INTAKE
IAL
Cylinder Head Installed
Removal
1.
Remove the air cleaner.
2.
Disconnect the spark plug leads, remove them from
the clip on the rocker cover and position out of the
way.
3. Remove the rocker arm cover and gasket.
4.
Remove the rocker arm shaft bolts evenly and lift off
the rocker arm shaft assembly.
5. Lift the push rods from their locations and keep them
in their correct order.
6. Remove the spark plugs.
7.
Suitably support the appropriate valve with air
pressure.
8. Compress the valve spring, using special service tool.
Remove the valve spring retainer locks. Release the
spring compressor, remove the valve spring retainer
and the valve stem oil seal.