| Tweet |
Custom Search
|
|
|
||
 TM 55-1905-221-14-2
5-15.
CYLINDER HEAD (Continued).
LOCATION/ITEM
ACTION
REMARKS
INSPECTION (Cont)
c.
Drill and tap into one
of the water hole
cover plates for an air
hose connection and
apply 80-100 psi (551.6 -
689.5 kpa) air pressure
to the water jacket.
Then, immerse the head
in a tank of water
previously heated to
180-200F (82.2-
93.3 ) for about
C
fifteen to twenty
minutes to thoroughly
heat the cylinder head.
Leaks will be detected
by noting any air
bubbles which may appear
in the water. Check
for leaks at oil gallery,
cylinder head stud
holes, exhaust ports,
and the top, bottom and
sides of the head itself.
Wear protective eye goggles when using compressed air.
d.
Relieve the air pressure,
remove the cylinder head
from the water tank,
remove the water hole
plates and gaskets and
dry the cylinder head
with compressed air.
If inspection revealed
any cracks, replace
the cylinder head.
5-358
|
||
|
||
