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 TM 55-1905-223-24-1
REMOVAL
a.
Remove engine (para. 3-12).
b.
Remove components from cylinder block (1, FIG. 4-75). Refer to procedures in chapters 2, 3, and
4.
DISASSEMBLY
a.
Remove piston cooling regulator and oil jumper cover.
(1) Remove machine bolts (63, FIG. 4-75), lockwasher (64) and washer (65).
(2) Remove piston cooling regulator (66) and gasket (67). Discard gasket.
(3) Remove machine bolts (54), lockwasher (53), and washer (55).
(4) Remove oil jumper cover (52) and gasket (51). Discard gasket.
b.
Remove piston cooling nozzles.
(1)
Remove self locking screw (35), piston cooling nozzle (36), and preformed packing (37).
(2) Discard preformed packing.
c.
Remove idler gear shafts.
NOTES
ο Machine bolts (45 and 48) and washers (46 and 49) were removed to remove
idler gears (para. 3-24).
ο A slide hammer type tool that contains 3/4 x 16 inch threads can be used to
remove the idler shafts.
(1) Remove camshaft idler shafts (47).
(2) Check shafts and cylinder block bore for any indication of movement from the shaft.
(3) Verify water pump shaft (50) has stayed in alignment as shown in FIG. 4-76. Carefully
inspect parts if the shaft has moved.
(4) Remove water pump shaft (50, FIG. 4-75).
d.
Remove thrust bearing support.
NOTE
The lower main bearings (21, 30, and 41), lower thrust bearing support (27) and
associated hardware (20, 22, 23, 28, 29, 31, 32, 38, 39, 42, and 43) were removed
to remove the crankshaft (para. 4-13).
4-85
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