TM 5-1940-277-34
ENGINE BLOCK INSPECTION AND REPLACEMENT INSTRUCTIONS
(Continued)
LOCATION
ITEM
ACTION
REMARKS
NOTE
The cylinder block assembly consists of the cast cylinder block with the integrally cast upper half
of the crankcase and the seven main bearing caps.
INSPECTION AND REPLACEMENT
Cylinder block (1)
a.
Cylinder
a.
Pressure test
block (1)
for cracks as
follows:
*
Fit new head
gasket (2).
*
Install 1/2
Head gasket can
in thick
be used as pat-
steel plate
tern for boring
on top of
bolt holes.
cylinder
block (1).
*
Install 25
Use torque
bolts with
wrench (0 - 175
washers to
ft-lb cap.)
secure steel
with 3/4 in soc-
plate,
ket.
torque bolts
to 135 ft-lb.
*
Install
Use 1/2 in socket
suitable
with torque
cover with
wrench (0- 175
air hose con-
ft-lb).
nection and
new gasket
over water
pump hole (3)
in front face
of block.
Secure cover
using four 5/16 in
UNC bolts.
Torque to
15 ft-lb.
*
Attach air hose
to water pump
hole cover.
3-89
