Quantcast INSPECTION AND REPAIR (Cont) - TM-55-1905-220-14-60726

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TM 55-1905-220-14-6
3-164.1. CYLINDER HEAD - MAINTENANCE INSTRUCTIONS (Continued).
LOCATION
ITEM
ACTION
REMARKS
INSPECTION AND REPAIR (Cont)
c. Apply 80-100 psi
(522-689 kPa) air
pressure to the water
jacket. Immerse the
cylinder head in a
tank of water, pre-
viously heated to
180-200 (82-93 ),
F
C
for about twenty min-
utes to thoroughly
heat the head. Ob-
serve the water in
the tank for bubbles
which indicates a
leak or crack. Check
for leaks at the top
and bottom of the
injector tubes, oil
gallery, exhaust
ports, fuel manifolds
and at the top and
bottom of the cylinder
head.
d. Relieve air pressure
and remove the cylin-
der head from the water
tank. Remove the
plates, gaskets and
injectors and dry head
with compressed air.
e. If the pressure check
reveals any cracks,
install a new cylinder
head.
3-2700


 


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