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 TM 55-1905-221-14-2
5-15.
CYLINDER HEAD (Continued).
LOCATION/ITEM
ACTION
REMARKS
CLEANING (Cont)
d.
Be sure that the water
inlet ports in the bottom
of the head are clean and
free of scale. The water
holes at each end of the
head may be cleaned up with
1/2 inch drill and all of
the other water holes may
be cleaned up with a 13/16
inch drill. Break the edges
of the holes slightly.
Dry cleaning solvent, P-D-680, used to clean parts, is potentially
dangerous to personnel and property. Avoid repeated or prolonged skin
contact. Do not use near open flame or excessive heat. Flash point of
solvent is 100138 (3859 ).
-
F
-
C
e.
Clean all other threaded
parts in cleaning solvent
P-D-680 and dry thoroughly.
INSPECTION
7.
a.
Valve Springs.
1.
Inspect springs for
fractured or pitted
coils.
5-353
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