TM 9-2815-202-34
4-38. CYLINDER HEAD REPAIR (Cont)
c. Pressure Check
NOTE
(1)
(2)
(3)
(4)
Before pressure checking cylinder
head, insure four cover plates (47),
cup plug (54), two pipe plugs (54),
fuse plug (52), and five exhaust
manifold studs (50) are in position.
Install scrap or dummy injectors to
properly seal injector tubes. Torque
injector clamp bolts to 20-25 Ib-ft
(27-34 N-m).
Using cylinder head pressure testing
kit, install fabricated end plate (64)
and gasket over hole in front of
cylinder head. Secure with bolts from
kit. Torque bolts to 30-35 Ib-ft
(41-47 N-m).
Using cylinder head pressure test kit,
install fabricated blocking plates (65)
and rubber gaskets to seal off ten water
holes on fire deck. Secure with bolts,
flat washers, and nuts from kit. Torque
bolts to 50-60 Ib-ft (71-85 N-m).
Attach a regulated air supply to end
plate (64) and gradually apply
pressure of 40 psi (276 kPa) to water
jacket.
4-190
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