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TM 9-2320-364-34-4
20-139
(6)
Install end plate on thermostat end of
cylinder head (9).
(7)
Install plug (11) and plug (12) in rear of
cylinder head (9).
When making this pressure test,
make sure personnel are
protected against pressurized air
and oil from possible rupture or
leak in hose or fitting on cylinder
head or injury to personnel may
result.
(8)
Install air hose to end plate and apply 40 psi
(276 kPa) to cylinder head (9).
NOTE
If cylinder head leaks, replace
seals or injector tubes as
required.
(9)
Apply coat of lubricating oil to cylinder
head (9) around seal and injector tube areas.
(10)
If leak is found in cylinder head (9), check
test assembly for proper seating. Repeat
Steps (8) and (9).
NOTE
If cylinder head (9) leaks when
Steps (8) and (9) are repeated,
replace cylinder head (9).
(11)
Slowly relieve air pressure.
(12)
Remove test fixture, plug (12) and end
plate from cylinder head (9).
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