9.7
Section 9
Disassembly
9
Figure 9-24. Removing Cylinder Head.
Figure 9-22. Removing Fuel Line (not on all
models).
Remove Valve Cover and Cylinder Head
1. Remove the remaining hex. fl ange mounting
screws and any loose spacers (stamped steel
covers) from the valve cover. Note their
placement/orientation. Remove the valve cover
from the cylinder head assembly. See Figure 9-23
and 9-24.
NOTE: The valve cover is sealed to the cylinder head
using RTV silicone sealant. When removing
valve cover, use care not to damage the
gasket surfaces of cover and cylinder head.
To break the RTV seal, hold a block of wood
against one of the fl at faces of the valve cover.
Strike the wood fi rmly with a mallet. If the seal
doesn’t break loose after 1 or 2 attempts,
repeat procedure on other side.
Fuel
Line
Rubber
Grommet
Hex. Flange
Screw
and Clip
Valve Cover
Hex. Flange
Screws
Hex. Flange
Screws
Cylinder
Head
Hex. Flange
Screw and
Spacer
Figure 9-23. Removing Valve Cover.
2. Remove the hex. fl ange screws, spacer (from the
screw between the intake and exhaust ports),
cylinder head, push rods, and cylinder head
gasket.
Cylinder Head Gasket
If the push rods will be reused, they should be
marked with a piece of tape ("I" or "E" at the time
of removal, so they are reinstalled in the same
location. See Figures 9-24 and 9-25.
Figure 9-25. Removing Cylinder Head Gasket.
Disassemble Cylinder Head
Two basic styles of heads are used. The fi rst style
utilizes a rocker bridge confi guration as shown in
Figure 9-26. The second style contains separate
rocker arm assemblies (with or without a guide plate),
and either a non-adjustable or adjustable valve lash
confi guration. Variations of this style are shown in
Figure 9-27. Components are unique to each head
confi guration. Follow the appropriate procedure based
upon the confi guration involved.
NOTE: Before disassembly, determine the specifi c
head confi guration involved, and mark all
valve train components to assure they are
reassembled on same side.
1. Remove the spark plug. See Figure 9-26.
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