TM 5-2815-241-34&P
PISTON AND CONNECTING ROD - CONTINUED
ACTION
LOCATION
ITEM
REMARKS
CLEANING/INSPECTION - CONTINUED
29. Connecting rod (1)
Two bolts (2)
Check that boltheads rest squarely on milled
surface (3) of connecting rod.
If boltheads do not rest squarely on
milled surface, tag connecting rod for
milled surface repair.
30. Connecting rod (1)
and bearing cap (4)
Two bolts (2), two
nuts (5), and two
washers (6)
a.
Using 1/2-inch drive 15/16-inch socket
and hinged handle, unscrew and take
off.
b.
Using 0- to 1-inch micrometer, check
inside diameter of boltholes (7).
If diameter is greater than 0.6249 Inch
(15.872 mm), discard connecting
rod and bearing cap.
31. Connecting rod (1)
Two bolts (2)
32.
33.
a.
Check for distorted or damaged threads.
If threads are distorted or damaged,
discard bolt.
b.
Using 0- to 1-inch micrometer, check
smallest outside diameter.
If smallest outside diameter is less
than 0.540 inch (13.72 mm) discard
bolt.
Connecting rod (1)
a.
Using 0- to 1-inch micrometer, check
fillet radius (8) at all corners
where connecting rod is milled for
bolthead.
If fillet radius does not measure 0.045
to 0.055 inch (1.14 to 1.40 mm), tag
connecting rod for milled surface
repair.
b.
Check fillet radius (8) for nicks and
dents.
If nicks and dents are deeper than
1/16 inch (1.59 mm), discard con-
necting rod. if nicks and dents
exist but are less than 1/16-inch
(1.59 mm) deep, tag connecting rod
for milled surface repair.
Two nuts (5)
Check for distorted or damaged threads.
If threads are distorted or damaged,
discard nut.
2-230
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