TM 9-2320-272-24-4
5-25. CYLINDER HEAD REPAIR (Contd)
NOTE
Wrap male pipe threads with antiseize tape before installation.
Apply sealing compound to mating surfaces of expansion plugs
before installation.
Install
plug (8) on rear face of cylinder head (10).
1.
Install
two new expansion plugs (9) on front and rear faces of cylinder head (10).
2.
Install
new expansion plug (7) on rear face of cylinder head (10).
3.
Install
five new expansion plugs (6) on top face of cylinder head (10).
4.
CAUTION
Position cylinder head on exhaust port face to install intake and
exhaust valves. Use wooden or protective surface work bench to
prevent damage to cylinder head. Bench must be clean.
NOTE
Ensure intake and exhaust valves are installed in original
locations as previously noted.
Dip valve (11) stems in clean engine oil and install in valve guides (5) from face side of cylinder
5.
head (10).
Carefully position cylinder head (10) face down on bench.
6.
Install twelve new seals (4), valve springs (3), and spring retainers (2) on valves (11).
7.
8.
Using spring compressor, compress valve springs (3) until collet grooves (12) on valves (11) are
exposed.
NOTE
Ensure all valves are locked by collets.
9.
Install twenty-four new collets (1) in collet grooves (12) and slowly release spring compressor.
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