Orion AGB-21G - Removing the Valves

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CAMSHAFT /VALVES AND VALVE SPRINGS
NOTE:
NOTE:
NOTE:
REMOVING THE VALVES
The following procedure applies to all of the
valves and related components.
Before removing the internal parts of the cylin-
der head (e.g., valves, valve springs, valve
seats), make sure that the valves properly seal.
1. Check:
valve sealing
Leakage at the valve seat
Check the valve
face, valve seat, and valve seat width.
Refer to “CHECKING THE VALVE SEATS”.
a. Pour a clean solvent
a
into the intake and
exhaust ports.
b. Check that the valves properly seal.
There should be no leakage at the valve seat
1
.
2. Remove:
valve cotters
1
Remove the valve cotters by compressing the
valve springs with the valve spring compressor
2
and attachment
3
.
3. Remove:
upper spring seat
1
valve springs
2
oil seal
3
4
valve
Identify the position of each part very carefully
so that it can be reinstalled in its original place.