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Removing the rocker cases
1. Remove the snap ring of the water outlet connec-
tor. Slide the connector towards the snap ring.
2. Unscrew the rocker case mounting bolts, then re-
move the rocker case from the cylinder head.
Removing cylinder head assemblies
1. Each cylinder head is located relative to the
crankcase with dowel pins. Use the Eye nut to lift
the head off the crankcase at a slant.
Cylinder head weight: approx. 35 kg (77 lb)
2. Remove the cylinder head gasket
IMPORTANT! Do not damage the cylinder head
or crankcase surfaces when you remove the
gasket with a screwdriver or other tool.
Removing valves and valve springs
Use the valve spring pusher to compress the valve
spring squarely, then remove the valve cotters.
NOTE! If the valves are to be reused, do not change
the combination of the valve seat and valve guide.
Removing studs, guides, etc.
Do not remove the nozzle gland mounting studs or
the bridge guide from the cylinder head unless abso-
lutely necessary. If any of these parts have been re-
moved, apply thread adhesive to the threads when in-
stalling it or a new part to the cylinder head.
Group 21 Engine Body
79
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