CYLINDER HEAD
64
Valves
Valves and valve parts, like springs and keepers, are
not available as service parts. The valves and valve
seats can be serviced by grinding and lapping or the
head can be replaced. Depending on local machine
and labor costs, it is probably more economical to
replace the cylinder head versus servicing the valves.
To service the valves:
NOTE: Servicing valves during the warranty
period will void the warranty. Warranty valve
repairs are to be accomplished by replacing the
cylinder head.
1. Remove the cylinder head by following the steps
described earlier in this chapter.
2. Remove the rocker arms by:
2a. Remove the jam nuts.
2b. Remove the fulcrum nut.
2c. Slide the rocker arms off of the rocker studs.
3. Remove the valve retainers by applying light fin-
ger pressure and moving the retainer so that the
valve stem passes through the large part of the
“keyhole” opening in the retainer.
See Figure
9.10.
NOTE: The exhaust valve has a secondary
keeper on it. Press down on the valve keeper
and the secondary keeper will pop off, Then
slide the keeper off of the valve stem.
See Fig-
ure 9.11.
4. Lift the springs off of the valve stems.
5. Slide the valves out of the cylinder head.
NOTE: Only the intake valve has a valve guide
seal.
See Figure 9.12.
Figure 9.10
Press down and slide off
Figure 9.11
Secondary valve
keeper
Valve keeper
Figure 9.12
Seal
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