37
CYLINDER HEAD ASS’Y
CAUTION:
Wear eye protection during
assembly.
NOTE:
Assemble the valves one at a time to
maintain proper order.
Install new valve seals on valve guides.
Apply engine oil to valve guides and seats.
Coat valve stem with molybdenum disulfide
grease.
Install valve carefully with a rotating motion to
avoid damaging valve seal.
Dip valve spring and retainer in clean engine oil
and install spring with closely spaced coils
toward the cylinder head.
Place retainer on spring and install valve spring
compressor. Compress spring only enough to
allow split keeper installation to prevent loss of
spring tension. Install split keepers with the gap
even on both sides.
Repeat procedure for remaining valve.
When all valves are installed, tap lightly with
soft faced hammer on the end of the valves to
seat the split keepers.
Summary of Contents for Cobra 220
Page 1: ...AEON MOTOR CO LTD SERVICE MANUAL...
Page 63: ...62...
